Spinning and Rotation of Earth, Sun and
planets |
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By Samy
Esmaeil
Email : [email protected] |
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WWW.kandil.com |
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If a small body of mass (m) orbits a large body of mass (M)
then, may be we can calculate the sidereal rotation period of the large
body (M) |
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by the rotational equation. The rotational equation can
calculate the rotation period for a Star of mass (M) which circled by
another mass (m). |
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nine Planets orbit our sun so, we can calculate the rotation period
of our sun. Also, from the rotation Equation we can calculate the
rotation |
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period of Earth, Mars, Jupiter, Saturn, Uranus, Neptune and
Pluto because all these planets are circled by another moons. |
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The Earth rotation period is going to be faster as a result of
increasing Earth- Moon distance. |
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The Earth rotation period increases when the moon orbit inclination plane
is perpendicular to the Earth equator |
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The Earth rotation period decreases when the moon orbit
inclination plane reaches to it's max. inclination |
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1-The rotation Equation: |
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Equation 1 |
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For spherical planets and moons (the small
body orbits the large body in a circular pass) |
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From equation 1 and a planet density=mass/volume |
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Equation 2 |
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The small body orbits the large body in a
circular pass |
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From equation 2 |
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Equation 3 |
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The small body orbits the large body in a
circular pass |
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Where: |
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The angular velocity of The large
body |
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The density of the large body |
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The density of the small body |
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T=Sidereal rotation period of the large
body (sec) |
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K=Moment of inertia factor of the large
body. |
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G=gravitational constant = 6.67300 �
10-11 m3 kg-1 s-2. |
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M=Large body mass (kg) |
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Re= Equatorial radius for the large body
(meter) |
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a=Semi major axis of the mass center of
all satellites that orbit large body (meter) |
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m=Total mass of all satellites that orbit
the large body (kg) |
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re =Equatorial radius of all satellites
that orbit large body (meter) |
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rp =Polar radius of all satellites that
orbit large body (meter) |
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1-2-The equation
results: | |
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The rotation period (T) results from equation (2): |
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Table (1) |
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Large body |
Rotation period |
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hr |
hr |
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T |
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Observed |
Calculated |
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Earth |
23.9 |
24.0 |
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Mars |
24.6 |
24.4 |
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Jupiter |
9.93 |
9.95 |
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Saturn |
10.7 |
9.4 |
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Uranus |
17.2 |
17.1 |
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Neptune |
16.1 |
16.9 |
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Figure (1). The observed and
calculated rotation periods (T) from equation (2) |
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Sun |
609.1 |
609.1 |
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Table (2) |
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Large body |
Rotation period |
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hr |
hr |
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T |
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Observed |
Calculated |
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Sun |
609.1 |
609.1 |
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Figure (2). The observed and
calculated rotation periods (T) from equation (2) |
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1-1The moment of inertia factor (K) results from equation
(3): |
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Table (3) |
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Large body |
Mom. Of inertia factor |
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K |
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Observed |
Calculated |
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Earth |
0.331 |
0.331 |
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Mars |
0.364 |
0.362 |
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Jupiter |
0.260 |
0.260 |
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Saturn |
0.200 |
0.192 |
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Uranus |
0.260 |
0.259 |
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Neptune |
0.270 |
0.275 |
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Pluto |
0.310 |
0.283 |
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Figure (3). The observed and
calculated moment of inertia factor (K) from equation (3) |
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Table (4) |
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Large body |
Mom. Of inertia factor |
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K |
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Observed |
Calculated |
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Sun |
0.060 |
0.060 |
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Figure (4). The observed and
calculated moment of inertia factor (K) from equation (3) |
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1-2-The errors of equation (2): |
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Table (5) The rotation period (T) results
from equation (2) |
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Large body |
Rotation period |
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T |
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Observed |
Calculated |
Error |
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hr |
hr |
% |
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Earth |
23.9345 |
24.007 |
-0.3% |
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Mars |
24.623 |
24.360 |
1.1% |
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Jupiter |
9.925 |
9.95 |
-0.3% |
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Saturn |
10.656 |
9.442 |
11.4% |
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Uranus |
17.24 |
17.097 |
0.8% |
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Neptune |
16.11 |
16.944 |
-5.2% |
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Pluto |
153.3 |
116.200 |
24.2% |
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Sun |
609.12 |
609.086 |
0.0% |
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Figure (5). The errors in (T) form
equation (2). |
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1-3-The errors of equation (3): |
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Table (6) The moment of inertia factor (K)
results from equation (3) |
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Large body |
Moment of inertia factor (K) |
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K |
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Measured |
Calculated |
Error |
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hr |
hr |
% |
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Earth |
0.3308 |
0.3312 |
-0.1% |
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Mars |
0.364 |
0.362 |
0.5% |
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Jupiter |
0.260 |
0.260 |
-0.1% |
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Saturn |
0.200 |
0.192 |
3.9% |
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Uranus |
0.260 |
0.259 |
0.5% |
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Neptune |
0.270 |
0.275 |
-1.7% |
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Sun |
0.060 |
0.060 |
0.0% |
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Pluto |
0.310 |
0.283 |
8.7% |
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Haumea |
? |
0.37 |
? |
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Figure (6). The errors in (K) form
equation (3). |
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2-Determination of Earth rotation period: |
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M=5.9736E+24 (kg) |
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Re= 6.3781E+6 (meter) |
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The Earth has one satellite (the Moon) |
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a=3.844E+8 (meter) |
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m=7.35E+22 (kg) |
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re =1738100 (meter) |
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rp =1736000 (meter) |
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From equation 2 (T)
of Earth is 24.007 |
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From equation 3 (K)
of Earth is 0.3312 |
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2-1-The Earth rotation |
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The Earth rotation period is going to be faster as a result of
increasing Earth- Moon distance. |
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From equa.2, the Earth is fastening it's rotation period by
-0.43
milliseconds/century (3.82 cm/year) fig.7 (If the moon orbits the Earth in a
circular pass) |
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Lambeck estimated that the Length of the Day decreases by about
-0.7 milli-seconds per century. (Ref.20) |
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http://rsta.royalsocietypublishing.org/content/287/1347/545.abstract |
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Figure (7). The rotation period of
Earth and moon distance relationship. |
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2-3-The Earth rotation is going to be faster according to international Earth
rotation service data. (fig 8) |
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http://tycho.usno.navy.mil/systime.html |
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http://tycho.usno.navy.mil/leapsec.html |
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Figure (8). The rotation period of
Earth is decreased by 2.7 milliseconds. |
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3-Determination of Mars rotation period: |
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M=6.4185E+23 (kg) |
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Re= 3397000 (meter) |
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There are two satellites orbit Mars |
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m= Total mass of all satellites that orbit the large body Mars
(kg) |
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= m1 (Phobos)+m2 (Deimos) =1.3E+16 |
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a=semi major axis of the center of mass of all satellites that
orbit Mars (meter) |
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=(m1 a1 +m2 a2 )/(m1 +m2 )=1.1977E+7
(meter) |
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re= Equatorial radius of the total satellites (meter) |
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re=[(r1)^3+(r2)^3]^0.3333=[(13400)^3+(7500)^3)]^0.3333=14128
(meter) |
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rp= Polar radius of the total satellites (meter) |
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rp=[(r1)^3+(r2)^3]^0.3333=[(9200)^3+(5200)^3)]^0.3333=9714
(meter) |
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From equation 2 (T)
of Mars is 24.36 |
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From equation 3 (K)
of Mars is 0.362 |
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3-2-Mars rotation is going to be slower: |
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Mars rotation period is going to be slower as a result of
decreasing the distance of it's moons' mass center. |
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From
the rotation equation, Mars is slowing it's rotation period by 0.67
second/century (1.8 meter/year) |
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A positive 0.67 leap second may be inserted every 100 year |
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3-3-Determination of Jupiter, Saturn, Uranus, Neptune, Pluto,
Haumea and sun rotation periods: |
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By the same way, we can calculate the rotation period (T) from
equation 2 as shown in table (7) |
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By the same way, we can calculate the moment of inertia factor
(K) from equation 3 as shown in table (8) |
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All moons of small masses are negligible according to the
equation results. |
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4-The
relationship between Earth rotation rate and lunar declination |
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4-1-The
period is from 10/Jul/2006 to
23/Nov./2006 (lunar
declination is 29 degree) |
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The
Earth diameter is in the moon inclination plane |
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From UT-UtC, the Earth rotation period increases when the moon orbit inclination plane
is perpendicular to the Earth equator |
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From UT-UTC, the Earth rotation period decreases when the moon
orbit inclination plane reaches to it's max. inclination |
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The Low
points in Fig.(9) represents the highest speed of the earth rotation.
(close to the earth equator) |
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The Low
points in Fig.(10) represents the Min. Lunar declination. |
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The Peak
points in Fig.(11) represents the Max.earth radius in the lunar orbital
plane.(the equator radius) |
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The
Earth rotation rate reaches to it's Max. when lunar declination is zero.
(the highest Earth diameter) |
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There is
a perfect correlation in the three curves. |
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From
Fig.(9), (10) and (11), the Earth speed increased when the lunar
declination decreased. |
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The
Earth diameter is in the moon inclination plane |
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4-2-The
period is from 9/Oct/1997 to
22/Feb./1998 (moon
declination is 18 degree) |
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The
Earth diameter is in the moon inclination plane |
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From UT-UtC, the Earth rotation period increases when the moon orbit inclination plane
is perpendicular to the Earth equator |
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From UT-UTC, the Earth rotation period decreases when the moon
orbit inclination plane reaches to it's max. inclination |
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The Low
points in Fig.(12) represents the highest speed of the earth
rotation.(close to the earth equator) |
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The Low
points in Fig.(13) represents the Min. Lunar declination. |
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The Peak
points in Fig.(14) represents the Max.earth radius in the lunar orbital
plane. |
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The
Earth rotation rate reaches to it's Max. when lunar declination is zero.
(the highest Earth diameter) |
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There is
a perfect correlation in the three curves. |
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From
Fig.(12), (13) and (14), the Earth rotation speed increased when the lunar
declination decreased. |
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The
Earth diameter is in the moon inclination plane |
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5-Acknowledgements |
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Thanks to Eng. Franz J. Heeke; (Germany) for his useful internet web. |
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Thanks to Dr. Jerald Lee ; (USA) for his useful internet discussion
and advice. |
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6-References |
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1-Charles F. Yoder,"Astrometric and Geodetic Properties of Earth
and the Solar System" |
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www.agu.org/reference/gephys/4_yoder.pdf |
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2-Richard Schmude, Jr., "Uranus, Neptune, Pluto and How to
Observe Them" |
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http://books.google.com/books?id=kqNr7rjw028C&pg=PA20&dq=uranus+moment+of+inertia |
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3-Mulholland,J.D:1980, "on the polar moment of inertia of a
Compressible Body", Celest. Mech. 22/57. |
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4-Stevenson, D. J.,1982, "Interiors of the giant planets",
Annual Reviews, 257/295
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http://articles.adsabs.harvard.edu/full/seri/CeMec/0031//0000095,001.html |
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5-The Planets |
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http://geophysics.ou.edu/solid_earth/notes/planets.html |
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6-FRANK SOHL1, GERALD SCHUBERT2,3, TILMAN SPOHN1, 2006, "The
Moment-of-Inertia of Mars and Implications for the Planet�s Interior
Structure"
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, Asia Oceania Geosciences Society, Singapore |
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7-Franz J. Heeke, 2007 ,Shaker Effects in Celestial Mechanics |
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http://www.surf2000.de/user/f-heeke/article1.html |
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8-Paul
D. Jose, 1965."Sun's Motion and Sunspots". The Astronomical Journal, Vol.
70, Number 3, April 1965; P. 193-200 |
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9-Hauke Hussmann, Frank Sohl , Tilman Spohn, 2006, "Subsurface
oceans and deep interiors of medium-sized outer planet satellites
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and large
trans-Neptunian objects" Icarus 185 (2006) 258�273 |
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10-C.M. Bertka and Y. Fei, "Implications for Geochemical Models
of the Martian Interior", Lunar and Planetary Science XXVIII
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www.lpi.usra.edu/meetings/lpsc97/pdf/1147.PDF |
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11-G. H. A. Cole, M. M. Woolfson, "Planetary science", Page
340 |
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12-Paul
R. Weissman, 1991."The angular momentum of the Oort cloud ". ICARUS,
Volume 89, Issue 1, Pages 190-193
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The
angular momentum of the Oort cloud |
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13-Fundamentals of Geophysics: Ill. : Bib - Google Books
Result |
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http://books.google.com/books?id=7vR2RJSIGVoC&pg=PA7&lpg=PA7&dq=moment+of+inertia+planets |
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14-The Earth as a Planet. |
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http://principles.ou.edu/earth_planet/index.html |
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15-Eliot F. Young and Richard P. Binzel, 1994."A New
Determination of Radii and Limb Parameters for Pluto and Charon from
Mutual Event Light curves " |
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|
ICARUS,
Volume 108, Issue 2, Pages 219-224 |
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A
New Determination of Radii and Limb Parameters for Pluto and
... |
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16-D. Ragozzine and M.E.Brown, 2009, "Orbits and Masses of the
Satellites of Dwarf Planet Haumea (2003 EL61)", Astronomical Journal, Volume 137,
pp. 4766-4776
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17-Landerer, F. W., J. H. Jungclaus, and J. Marotzke 2007
,"Ocean bottom pressure changes lead to a decreasing length-of-day in a
warming climate", |
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|
Geophys. Res.
Lett., 34, L06307, |
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http://www.agu.org/pubs/crossref/2007/2006GL029106.shtml |
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18-Dennis D. McCarthy.2004,"Precision time and the rotation of
the Earth",U. S. Naval Observatory, Washington, DC 20392, USA |
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19-S.Segan,
I.Damjanov and B.Surlan,2003,"EARTH'S ROTATION IRREGULARITIES DERIVED FROM
UTIBLI BY METHOD OF MULTI-COMPOSING OF ORDINATES" |
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Ser.A.journal |
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20-
Lambeck, K. (1977). "Tidal dissipation in the oceans: Astronomical,
geophysical and oceanographic consequences". |
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Phil. Trans. Royal Society of London A287: 545�594.
doi:10.1098/rsta.1977.0159 |
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http://rsta.royalsocietypublishing.org/content/287/1347/545.abstract |
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7-Another tables |
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7-1-Table (7) total planets and sun calculation. |
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Table (7) Total rotation equation results and solar system
parameters to calculate (T), (Equation 2). |
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|
Large body properties |
Small body properties |
|
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|
Rotation period |
Grav. |
|
Equatorial |
M. of Inertia |
|
Semi.Maj. |
Equatorial |
Polar |
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T |
Const. |
Mass |
Radius |
Factor |
Mass |
Axis |
Radius |
Radius |
|
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|
Observed |
Calculated |
Error |
G |
M |
Re |
K |
m |
a |
re |
rp |
|
|
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|
|
|
hr |
hr |
% |
|
Kg |
meter |
|
Kg |
meter |
meter |
meter |
|
|
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|
|
Earth |
23.9345 |
24.007 |
-0.30% |
6.67E-11 |
5.97E+24 |
6.38E+06 |
0.3308 |
7.35E+22 |
3.84E+08 |
1.74E+06 |
1.74E+06 |
|
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|
|
Moon |
7.35E+22 |
3.84E+08 |
1.74E+06 |
1.74E+06 |
|
|
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|
|
Mars |
24.623 |
24.360 |
1.1% |
6.67E-11 |
6.42E+23 |
3.40E+06 |
0.364 |
1.30E+16 |
1.20E+07 |
1.41E+04 |
9.72E+03 |
K= 0.3635 for Mars (Ref.6) |
|
|
|
Phobos |
1.06E+16 |
9.38E+06 |
1.34E+04 |
9.20E+03 |
|
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Deimos |
2.40E+15 |
2.35E+07 |
7.50E+03 |
5.20E+03 |
|
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|
Jupiter |
9.925 |
9.950 |
-0.3% |
6.67E-11 |
1.90E+27 |
7.15E+07 |
0.260 |
3.93E+23 |
1.10E+09 |
3.48E+06 |
3.47E+06 |
K= 0.26 for Jupiter (Ref.12) |
|
|
Io |
8.93E+22 |
4.22E+08 |
1.82E+06 |
1.82E+06 |
|
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Europa |
4.82E+22 |
6.71E+08 |
1.56E+06 |
1.57E+06 |
|
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Ganymede |
1.48E+23 |
1.07E+09 |
2.63E+06 |
2.63E+06 |
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Callisto |
1.08E+23 |
1.88E+09 |
2.41E+06 |
2.40E+06 |
|
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|
Saturn |
10.656 |
9.442 |
11.4% |
6.67E-11 |
5.68E+26 |
6.03E+07 |
0.200 |
1.40E+23 |
1.23E+09 |
2.64E+06 |
2.63E+06 |
K= 0.2 for Saturn (Ref.12),
(Ref.5) |
|
|
Mimas |
3.97E+19 |
1.86E+08 |
2.09E+05 |
1.91E+05 |
|
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|
Enceladus |
7.30E+19 |
2.38E+08 |
2.56E+05 |
2.45E+05 |
|
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Tethys |
6.22E+20 |
2.95E+08 |
5.36E+05 |
5.26E+04 |
|
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|
Dione |
1.10E+21 |
3.77E+08 |
5.64E+05 |
5.64E+05 |
|
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|
Rhea |
2.31E+21 |
5.27E+08 |
7.68E+05 |
7.68E+05 |
|
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|
Titan |
1.35E+23 |
1.22E+09 |
2.58E+06 |
2.58E+06 |
|
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|
Hyperion |
5.50E+18 |
1.48E+09 |
1.85E+05 |
1.13E+05 |
|
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|
Iapetus |
1.59E+21 |
3.56E+09 |
7.26E+05 |
7.26E+05 |
|
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|
|
Uranus |
17.24 |
17.097 |
0.8% |
6.67E-11 |
8.68E+25 |
2.56E+07 |
0.260 |
9.12E+21 |
4.24E+08 |
1.10E+06 |
1.10E+06 |
K= 0.26 for Uranus (Ref.13) |
|
|
Miranda |
6.60E+19 |
1.29E+08 |
2.40E+05 |
2.33E+05 |
|
|
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|
|
Ariel |
1.35E+21 |
1.91E+08 |
5.81E+05 |
5.78E+05 |
|
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|
|
Umbriel |
1.17E+21 |
2.66E+08 |
5.85E+05 |
5.85E+05 |
|
|
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|
|
Titania |
3.52E+21 |
4.36E+08 |
7.89E+05 |
7.89E+05 |
|
|
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|
|
Oberon |
3.01E+21 |
5.84E+08 |
7.61E+05 |
7.61E+05 |
|
|
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|
|
Neptune |
16.11 |
16.944 |
-5.2% |
6.67E-11 |
1.02E+26 |
2.48E+07 |
0.270 |
2.14E+22 |
3.55E+08 |
1.35E+06 |
1.35E+06 |
K= 0.27 for Neptune (Ref.5) |
|
|
Triton |
2.14E+22 |
3.55E+08 |
1.35E+06 |
1.35E+06 |
|
|
|
|
|
|
Pluto |
153.292 |
116.212 |
24.2% |
6.67E-11 |
1.31E+22 |
1.13E+06 |
0.310 |
1.50E+21 |
1.96E+07 |
6.41E+05 |
6.41E+05 |
(Ref.9,12) |
|
|
Charon |
1.50E+21 |
1.96E+07 |
6.42E+05 |
6.42E+05 |
(Ref.9,12) |
|
|
Haumea |
3.915 |
- |
- |
6.67E-11 |
4.01E+21 |
1.53E+06 |
???? |
3.58E+19 |
3.78E+07 |
6.42E+05 |
6.42E+05 |
(Ref.16) |
|
|
Hi'iaka |
1.79E+19 |
4.99E+07 |
1.55E+05 |
1.55E+05 |
(Ref.16) |
|
|
Namaka |
1.79E+19 |
2.57E+07 |
8.50E+04 |
8.50E+04 |
|
|
|
|
|
|
Sun |
609.12 |
609.085 |
0.0% |
6.67E-11 |
1.99E+30 |
6.96E+08 |
0.060 |
2.67E+27 |
1.13E+12 |
8.51E+07 |
7.88E+07 |
K= 0.06 for Sun (Ref.12,5) |
|
|
|
Mercury |
3.30E+23 |
5.79E+10 |
2.44E+06 |
2.44E+06 |
|
|
|
|
|
|
Venus |
4.87E+24 |
1.08E+11 |
6.05E+06 |
6.05E+06 |
|
|
|
|
|
|
Earth |
5.97E+24 |
1.50E+11 |
6.38E+06 |
6.36E+06 |
|
|
|
|
|
|
Mars |
6.42E+23 |
2.28E+11 |
3.40E+06 |
3.38E+06 |
|
|
|
|
|
|
Jupiter |
1.90E+27 |
7.79E+11 |
7.15E+07 |
6.69E+07 |
|
|
|
|
|
|
Saturn |
5.68E+26 |
1.43E+12 |
6.03E+07 |
5.44E+07 |
|
|
|
|
|
|
Uranus |
8.68E+25 |
2.87E+12 |
2.56E+07 |
2.49E+07 |
|
|
|
|
|
|
Neptune |
1.02E+26 |
4.50E+12 |
2.48E+07 |
2.43E+07 |
|
|
|
|
|
|
Pluto |
1.31E+22 |
5.91E+12 |
1.13E+06 |
1.13E+06 |
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7-2-Table (8) total planets and sun calculation. |
|
|
|
|
|
Table (8) Moment of inertia results to calculate (k), (Equation
3). |
|
|
|
|
|
|
Large body properties |
Small body properties |
|
|
|
|
|
Rotation |
Grav. |
|
Equatorial |
Moment of
inertia factor K |
|
Semi.Maj. |
Equatorial |
Polar |
|
|
|
|
|
Observed |
Const. |
Mass |
Radius |
Calculated |
Current |
Error |
Mass |
Axis |
Radius |
Radius |
|
|
|
|
|
T |
G |
M |
Re |
Value |
Value |
.% |
m |
a |
re |
rp |
|
|
|
|
|
hr |
Sec. |
|
Kg |
meter |
|
|
|
Kg |
meter |
meter |
meter |
|
|
|
|
|
Earth |
23.9345 |
86164 |
6.67E-11 |
6.0E+24 |
6.38E+06 |
0.3312 |
0.3308 |
0.1% |
7.35E+22 |
3.84E+08 |
1.74E+06 |
1.74E+06 |
|
|
|
|
|
Moon |
|
|
7.35E+22 |
3.84E+08 |
1.74E+06 |
1.74E+06 |
|
|
|
|
|
Mars |
24.6230 |
88643 |
6.67E-11 |
6.4E+23 |
3.40E+06 |
0.3623 |
0.3635 |
-0.3% |
1.30E+16 |
1.20E+07 |
1.41E+04 |
9.72E+03 |
|
|
|
|
|
Phobos |
|
|
1.06E+16 |
9.38E+06 |
1.34E+04 |
9.20E+03 |
|
|
|
|
|
Deimos |
|
|
2.40E+15 |
2.35E+07 |
7.50E+03 |
5.20E+03 |
|
|
|
|
|
Jupiter |
9.9250 |
35730 |
6.67E-11 |
1.9E+27 |
71492000 |
0.2603 |
0.260 |
0.1% |
3.93E+23 |
1.10E+09 |
3.48E+06 |
3.47E+06 |
|
|
|
|
|
Io |
|
|
8.93E+22 |
4.22E+08 |
1.82E+06 |
1.82E+06 |
|
|
|
|
|
Europa |
|
|
4.82E+22 |
6.71E+08 |
1.56E+06 |
1.57E+06 |
|
|
|
|
|
Ganymede |
|
|
1.48E+23 |
1.07E+09 |
2.63E+06 |
2.63E+06 |
|
|
|
|
|
Callisto |
|
|
1.08E+23 |
1.88E+09 |
2.41E+06 |
2.40E+06 |
|
|
|
|
|
Saturn |
10.656 |
38362 |
6.67E-11 |
5.7E+26 |
60268000 |
0.1921 |
0.20 |
-3.9% |
1.40E+23 |
1.23E+09 |
2.64E+06 |
2.63E+06 |
|
|
|
|
|
Mimas |
|
3.97E+19 |
1.86E+08 |
2.09E+05 |
1.91E+05 |
|
|
|
|
|
Enceladus |
|
7.30E+19 |
2.38E+08 |
2.56E+05 |
2.45E+05 |
|
|
|
|
|
Tethys |
|
6.22E+20 |
2.95E+08 |
5.36E+05 |
5.26E+04 |
|
|
|
|
|
Dione |
|
1.10E+21 |
3.77E+08 |
5.64E+05 |
5.64E+05 |
|
|
|
|
|
Rhea |
|
2.31E+21 |
5.27E+08 |
7.68E+05 |
7.68E+05 |
|
|
|
|
|
Titan |
|
1.35E+23 |
1.22E+09 |
2.58E+06 |
2.58E+06 |
|
|
|
|
|
Hyperion |
|
5.50E+18 |
1.48E+09 |
1.85E+05 |
1.13E+05 |
|
|
|
|
|
Iapetus |
|
1.59E+21 |
3.56E+09 |
7.26E+05 |
7.26E+05 |
|
|
|
|
|
Uranus |
17.24 |
62064 |
6.67E-11 |
8.7E+25 |
25559000 |
0.2593 |
0.260 |
-0.3% |
9.12E+21 |
4.24E+08 |
1.10E+06 |
1.10E+06 |
|
|
|
|
|
Miranda |
|
|
6.60E+19 |
1.29E+08 |
2.40E+05 |
2.33E+05 |
|
|
|
|
|
Ariel |
|
|
1.35E+21 |
1.91E+08 |
5.81E+05 |
5.78E+05 |
|
|
|
|
|
Umbriel |
|
|
1.17E+21 |
2.66E+08 |
5.85E+05 |
5.85E+05 |
|
|
|
|
|
Titania |
|
|
3.52E+21 |
4.36E+08 |
7.89E+05 |
7.89E+05 |
|
|
|
|
|
Oberon |
|
|
3.01E+21 |
5.84E+08 |
7.61E+05 |
7.61E+05 |
|
|
|
|
|
Neptune |
16.11 |
57996 |
6.67E-11 |
1.0E+26 |
24764000 |
0.2746 |
0.2700 |
1.7% |
2.14E+22 |
3.55E+08 |
1.35E+06 |
1.35E+06 |
|
|
|
|
|
Triton |
|
|
2.14E+22 |
3.55E+08 |
1.35E+06 |
1.35E+06 |
|
|
|
|
|
Pluto |
153.292 |
551851 |
6.67E-11 |
1.3E+22 |
1133000 |
0.2827 |
0.31 |
-8.8% |
1.50E+21 |
1.96E+07 |
6.41E+05 |
6.41E+05 |
|
|
|
|
|
Charon |
|
|
1.50E+21 |
1.96E+07 |
6.42E+05 |
6.42E+05 |
|
|
|
|
|
Haumea |
3.915 |
14096 |
6.67E-11 |
4.0E+21 |
980000 |
0.3696 |
? |
? |
3.58E+19 |
3.78E+07 |
1.63E+05 |
1.63E+05 |
|
|
|
|
|
Hi'iaka |
|
|
1.79E+19 |
4.99E+07 |
1.55E+05 |
1.55E+05 |
|
|
|
|
|
Namaka |
|
|
1.79E+19 |
2.57E+07 |
8.50E+04 |
8.50E+04 |
|
|
|
|
|
Sun |
609.12 |
2192832 |
6.67E-11 |
2.0E+30 |
6.96E+08 |
0.060 |
0.06 |
0.02% |
2.67E+27 |
1.13E+12 |
8.51E+07 |
7.88E+07 |
|
|
|
|
|
Mercury |
|
|
3.30E+23 |
5.79E+10 |
2.44E+06 |
2.44E+06 |
|
|
|
|
|
Venus |
|
|
4.87E+24 |
1.08E+11 |
6.05E+06 |
6.05E+06 |
|
|
|
|
|
Earth |
|
|
5.97E+24 |
1.50E+11 |
6.38E+06 |
6.36E+06 |
|
|
|
|
|
Mars |
|
|
6.42E+23 |
2.28E+11 |
3.40E+06 |
3.38E+06 |
|
|
|
|
|
Jupiter |
|
|
1.90E+27 |
7.79E+11 |
7.15E+07 |
6.69E+07 |
|
|
|
|
|
Saturn |
|
|
5.68E+26 |
1.43E+12 |
6.03E+07 |
5.44E+07 |
|
|
|
|
|
Uranus |
|
|
8.68E+25 |
2.87E+12 |
2.56E+07 |
2.49E+07 |
|
|
|
|
|
Neptune |
|
|
1.02E+26 |
4.50E+12 |
2.48E+07 |
2.43E+07 |
|
|
|
|
|
Pluto |
|
|
1.31E+22 |
5.91E+12 |
1.13E+06 |
1.13E+06 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
7-2-Table (9) the effect of one moon on the rotation period when
the other moons omitted. |
|
|
|
|
|
The results as shown in table (9) |
|
|
|
|
|
|
|
1-The rotation period of Mars may be 8.4 when Deimos only orbits
Mars. |
|
|
|
|
|
|
|
2-The rotation period of Jupiter may be 4.63 when IO only orbits
Jupiter |
|
|
|
|
|
|
|
3-The rotation period of Saturn may be 0.3 when Tethys only
orbits Saturn. |
|
|
|
|
|
|
|
4-The rotation period of Sun may be 19.2 when Mercury only
orbits sun. |
|
|
|
|
|
|
|
5-The rotation period of Sun may be 8.3 when Pluto only orbits
sun. |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Why this small planet (Pluto) can rotates alone the sun with 8.3
hr rotational period? |
|
|
|
|
|
|
|
The distance between Sun and Pluto is too large (the torque arm
is too large). |
|
|
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|
Table (9) Rotation equation results when one small body rotates around
the large body, (equation 2). |
|
|
|
|
|
|
Large body properties |
Small body properties |
|
|
|
|
|
|
Rotation period |
Grav. |
|
Equatorial |
M. of Inertia |
|
Semi.Maj. |
Equatorial |
Polar |
|
|
|
|
|
|
T |
Const. |
Mass |
Radius |
Factor |
Mass |
Axis |
Radius |
Radius |
|
|
|
|
|
|
Observed |
Calculated |
Error |
G |
M |
Re |
K |
m |
a |
re |
rp |
|
|
|
|
|
|
hr |
hr |
% |
|
Kg |
meter |
|
Kg |
meter |
meter |
meter |
|
|
|
|
|
|
Earth |
23.9345 |
24.007 |
-0.30% |
6.67E-11 |
5.97E+24 |
6.38E+06 |
0.3308 |
7.35E+22 |
3.84E+08 |
1.74E+06 |
1.74E+06 |
|
|
|
|
|
|
Moon |
7.35E+22 |
3.84E+08 |
1.74E+06 |
1.74E+06 |
|
|
|
|
|
|
Mars |
24.623 |
24.360 |
1.1% |
6.67E-11 |
6.42E+23 |
3.40E+06 |
0.364 |
1.30E+16 |
1.20E+07 |
1.41E+04 |
9.72E+03 |
|
|
|
|
Phobos |
|
29.093 |
|
6.67E-11 |
6.42E+23 |
3.40E+06 |
0.364 |
1.06E+16 |
9.38E+06 |
1.34E+04 |
9.20E+03 |
|
|
|
|
|
|
Deimos |
|
8.416 |
|
6.67E-11 |
6.42E+23 |
3.40E+06 |
0.364 |
2.40E+15 |
2.35E+07 |
7.50E+03 |
5.20E+03 |
|
|
|
|
|
|
Jupiter |
9.925 |
9.950 |
-0.26% |
6.7E-11 |
1.9E+27 |
71492000 |
0.260 |
3.93E+23 |
1.10E+09 |
3.48E+06 |
3.47E+06 |
|
|
|
Io |
4.625 |
|
6.7E-11 |
1.9E+27 |
71492000 |
0.260 |
8.93E+22 |
4.22E+08 |
1.82E+06 |
1.82E+06 |
|
|
|
|
|
|
Europa |
4.676 |
|
6.7E-11 |
1.9E+27 |
71492000 |
0.260 |
4.82E+22 |
6.71E+08 |
1.56E+06 |
1.57E+06 |
|
|
|
|
|
|
Ganymede |
11.601 |
|
6.7E-11 |
1.9E+27 |
71492000 |
0.260 |
1.48E+23 |
1.07E+09 |
2.63E+06 |
2.63E+06 |
|
|
|
|
|
|
Callisto |
9.325 |
|
6.7E-11 |
1.9E+27 |
71492000 |
0.260 |
1.08E+23 |
1.88E+09 |
2.41E+06 |
2.40E+06 |
|
|
|
|
|
|
Saturn |
10.656 |
9.442 |
11.4% |
6.7E-11 |
5.68E+26 |
60268000 |
0.200 |
1.40E+23 |
1.23E+09 |
2.64E+06 |
2.63E+06 |
|
|
|
Mimas |
17.812 |
|
6.7E-11 |
5.68E+26 |
60268000 |
0.200 |
3.97E+19 |
1.86E+08 |
2.09E+05 |
1.91E+05 |
|
|
|
|
|
|
Enceladus |
19.078 |
|
6.7E-11 |
5.68E+26 |
60268000 |
0.200 |
7.30E+19 |
2.38E+08 |
2.56E+05 |
2.45E+05 |
|
|
|
|
|
|
Tethys |
0.303 |
|
6.7E-11 |
5.68E+26 |
60268000 |
0.200 |
6.22E+20 |
2.95E+08 |
5.36E+05 |
5.26E+04 |
|
|
|
|
|
|
Dione |
12.365 |
|
6.7E-11 |
5.68E+26 |
60268000 |
0.200 |
1.10E+21 |
3.77E+08 |
5.64E+05 |
5.64E+05 |
|
|
|
|
|
|
Rhea |
17.651 |
|
6.7E-11 |
5.68E+26 |
60268000 |
0.200 |
2.31E+21 |
5.27E+08 |
7.68E+05 |
7.68E+05 |
|
|
|
|
|
|
Titan |
8.934 |
|
6.7E-11 |
5.68E+26 |
60268000 |
0.200 |
1.35E+23 |
1.22E+09 |
2.58E+06 |
2.58E+06 |
|
|
|
|
|
|
Hyperion |
66.404 |
|
6.7E-11 |
5.68E+26 |
60268000 |
0.200 |
5.50E+18 |
1.48E+09 |
1.85E+05 |
1.13E+05 |
|
|
|
|
|
|
Iapetus |
9.944 |
|
6.7E-11 |
5.68E+26 |
60268000 |
0.200 |
1.59E+21 |
3.56E+09 |
7.26E+05 |
7.26E+05 |
|
|
|
|
|
|
Uranus |
17.24 |
17.097 |
0.829% |
6.7E-11 |
8.68E+25 |
25559000 |
0.26 |
9.12E+21 |
4.24E+08 |
1.10E+06 |
1.10E+06 |
|
|
|
Miranda |
27.807 |
|
6.7E-11 |
8.68E+25 |
25559000 |
0.26 |
6.60E+19 |
1.29E+08 |
2.40E+05 |
2.33E+05 |
|
|
|
|
|
|
Ariel |
17.864 |
|
6.7E-11 |
8.68E+25 |
25559000 |
0.26 |
1.35E+21 |
1.91E+08 |
5.81E+05 |
5.78E+05 |
|
|
|
|
|
|
Umbriel |
21.216 |
|
6.7E-11 |
8.68E+25 |
25559000 |
0.26 |
1.17E+21 |
2.66E+08 |
5.85E+05 |
5.85E+05 |
|
|
|
|
|
|
Titania |
12.838 |
|
6.7E-11 |
8.68E+25 |
25559000 |
0.26 |
3.52E+21 |
4.36E+08 |
7.89E+05 |
7.89E+05 |
|
|
|
|
|
|
Oberon |
12.050 |
|
6.7E-11 |
8.68E+25 |
25559000 |
0.26 |
3.01E+21 |
5.84E+08 |
7.61E+05 |
7.61E+05 |
|
|
|
|
|
|
Neptune |
16.11 |
16.944 |
-5.2% |
6.7E-11 |
1.02E+26 |
24764000 |
0.27 |
2.14E+22 |
3.55E+08 |
1.35E+06 |
1.35E+06 |
|
|
|
Triton |
|
|
|
|
|
|
|
2.14E+22 |
3.55E+08 |
1.35E+06 |
1.35E+06 |
|
|
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|
|
|
Pluto |
153.292 |
116.212 |
24.2% |
6.67E-11 |
1.31E+22 |
1.13E+06 |
0.310 |
1.50E+21 |
1.96E+07 |
6.41E+05 |
6.41E+05 |
|
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|
Charon |
|
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|
1.50E+21 |
1.96E+07 |
6.42E+05 |
6.42E+05 |
|
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|
Haumea |
3.915 |
- |
- |
6.7E-11 |
4.01E+21 |
1531000 |
???? |
3.58E+19 |
3.78E+07 |
1.63E+05 |
1.63E+05 |
|
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Hi'iaka |
|
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|
1.79E+19 |
4.99E+07 |
1.55E+05 |
1.55E+05 |
|
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Namaka |
|
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|
1.79E+19 |
2.57E+07 |
8.50E+04 |
8.50E+04 |
|
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|
|
Sun |
609.12 |
609.085 |
0.0% |
6.7E-11 |
1.99E+30 |
6.96E+08 |
0.06 |
2.67E+27 |
1.13E+12 |
8.51E+07 |
7.88E+07 |
|
|
|
|
Mercury |
19.193 |
|
6.7E-11 |
1.99E+30 |
6.96E+08 |
0.06 |
3.30E+23 |
5.79E+10 |
2.44E+06 |
2.44E+06 |
|
|
|
|
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Venus |
23.698 |
|
6.7E-11 |
1.99E+30 |
6.96E+08 |
0.06 |
4.87E+24 |
1.08E+11 |
6.05E+06 |
6.05E+06 |
|
|
|
|
|
|
Earth |
18.709 |
|
6.7E-11 |
1.99E+30 |
6.96E+08 |
0.06 |
5.97E+24 |
1.50E+11 |
6.38E+06 |
6.36E+06 |
|
|
|
|
|
|
Mars |
21.733 |
|
6.7E-11 |
1.99E+30 |
6.96E+08 |
0.06 |
6.42E+23 |
2.28E+11 |
3.40E+06 |
3.38E+06 |
|
|
|
|
|
|
Jupiter |
474.557 |
|
6.7E-11 |
1.99E+30 |
6.96E+08 |
0.06 |
1.90E+27 |
7.79E+11 |
7.15E+07 |
6.69E+07 |
|
|
|
|
|
|
Saturn |
1196.192 |
|
6.7E-11 |
1.99E+30 |
6.96E+08 |
0.06 |
5.68E+26 |
1.43E+12 |
6.03E+07 |
5.44E+07 |
|
|
|
|
|
|
Uranus |
159.701 |
|
6.7E-11 |
1.99E+30 |
6.96E+08 |
0.06 |
8.68E+25 |
2.87E+12 |
2.56E+07 |
2.49E+07 |
|
|
|
|
|
|
Neptune |
76.215 |
|
6.7E-11 |
1.99E+30 |
6.96E+08 |
0.06 |
1.02E+26 |
4.50E+12 |
2.48E+07 |
2.43E+07 |
|
|
|
|
|
|
Pluto |
8.254 |
|
6.7E-11 |
1.99E+30 |
6.96E+08 |
0.06 |
1.31E+22 |
5.91E+12 |
1.13E+06 |
1.13E+06 |
|
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|
7-3-Table (10) the effect of the giant planets on the rotation
of Sun. |
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The results as shown in table (10) |
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From the rotation equation, it is very clear that the giant
planets control the sun rotation, |
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The rotation period of the sun may be 612 hr when the giant
planets only orbit the sun. |
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Table (10) Rotation equation results when the Giant planets only
orbit Sun, (equation 2). |
|
|
|
|
|
|
Large body properties |
Small body properties |
|
|
|
|
|
|
Rotation period |
Grav. |
|
Equatorial |
M. of Inertia |
|
Semi.Maj. |
Equatorial |
Polar |
|
|
|
|
|
|
T |
Const. |
Mass |
Radius |
Factor |
Mass |
Axis |
Radius |
Radius |
|
|
|
|
|
|
Observed |
Calculated |
Error |
G |
M |
Re |
K |
m |
a |
re |
rp |
|
|
|
|
|
|
hr |
hr |
% |
|
Kg |
meter |
|
Kg |
meter |
meter |
meter |
|
|
|
|
|
|
Sun |
609.12 |
612.033 |
-0.5% |
6.7E-11 |
1.99E+30 |
6.96E+08 |
0.06 |
2.66E+27 |
1.13E+12 |
8.51E+07 |
7.88E+07 |
|
|
|
|
Mercury |
|
|
|
|
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|
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|
Venus |
|
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Earth |
|
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|
|
Mars |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Jupiter |
474.557 |
|
6.7E-11 |
1.99E+30 |
6.96E+08 |
0.06 |
1.90E+27 |
7.79E+11 |
7.15E+07 |
6.69E+07 |
|
|
|
|
|
|
Saturn |
1196.192 |
|
6.7E-11 |
1.99E+30 |
6.96E+08 |
0.06 |
5.68E+26 |
1.43E+12 |
6.03E+07 |
5.44E+07 |
|
|
|
|
|
|
Uranus |
159.701 |
|
6.7E-11 |
1.99E+30 |
6.96E+08 |
0.06 |
8.68E+25 |
2.87E+12 |
2.56E+07 |
2.49E+07 |
|
|
|
|
|
|
Neptune |
76.215 |
|
6.7E-11 |
1.99E+30 |
6.96E+08 |
0.06 |
1.02E+26 |
4.50E+12 |
2.48E+07 |
2.43E+07 |
|
|
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|
Pluto |
|
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7-4-Table (11) the effect of the terrestrial planets on the
rotation of sun. |
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|
The results as shown in table (11) |
|
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|
|
The rotation period of the sun may be 25 hr when the terrestrial
planets only orbit the sun. |
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|
Table (11) Rotation equation results when the terrestrial
planets only orbit sun, (equation 2). |
|
|
|
|
|
|
Large body properties |
Small body properties |
|
|
|
|
|
|
Rotation period |
Grav. |
|
Equatorial |
M. of Inertia |
|
Semi.Maj. |
Equatorial |
Polar |
|
|
|
|
|
|
T |
Const. |
Mass |
Radius |
Factor |
Mass |
Axis |
Radius |
Radius |
|
|
|
|
|
|
Observed |
Calculated |
Error |
G |
M |
Re |
K |
m |
a |
re |
rp |
|
|
|
|
|
|
hr |
hr |
% |
|
Kg |
meter |
|
Kg |
meter |
meter |
meter |
|
|
|
|
|
|
Sun |
609.12 |
25.316 |
95.8% |
6.7E-11 |
1.99E+30 |
6.96E+08 |
0.06 |
1.15E+25 |
1.38E+11 |
8.12E+06 |
8.10E+06 |
|
|
|
|
Mercury |
19.193 |
|
6.7E-11 |
1.99E+30 |
6.96E+08 |
0.06 |
3.30E+23 |
5.79E+10 |
2.44E+06 |
2.44E+06 |
|
|
|
|
|
|
Venus |
23.698 |
|
6.7E-11 |
1.99E+30 |
6.96E+08 |
0.06 |
4.87E+24 |
1.08E+11 |
6.05E+06 |
6.05E+06 |
|
|
|
|
|
|
Earth |
18.709 |
|
6.7E-11 |
1.99E+30 |
6.96E+08 |
0.06 |
5.97E+24 |
1.50E+11 |
6.38E+06 |
6.36E+06 |
|
|
|
|
|
|
Mars |
21.733 |
|
6.7E-11 |
1.99E+30 |
6.96E+08 |
0.06 |
6.42E+23 |
2.28E+11 |
3.40E+06 |
3.38E+06 |
|
|
|
|
|
|
Jupiter |
|
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Saturn |
|
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Uranus |
|
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Neptune |
|
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Pluto |
|
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7-5-Table (12) the effect of Pluto on the rotation of sun. |
|
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|
The results as shown in table (12), and (9) |
|
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|
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|
|
Table (12) Rotation equation results when all planets except
Pluto orbit sun, (equation 2). |
|
|
|
|
|
|
Large body properties |
Small body properties |
|
|
|
|
|
|
Rotation period |
Grav. |
|
Equatorial |
M. of Inertia |
|
Semi.Maj. |
Equatorial |
Polar |
|
|
|
|
|
|
T |
Const. |
Mass |
Radius |
Factor |
Mass |
Axis |
Radius |
Radius |
|
|
|
|
|
|
Observed |
Calculated |
Error |
G |
M |
Re |
K |
m |
a |
re |
rp |
|
|
|
|
|
|
hr |
hr |
% |
|
Kg |
meter |
|
Kg |
meter |
meter |
meter |
|
|
|
|
|
|
Sun |
609.12 |
609.094 |
0.0% |
6.7E-11 |
1.99E+30 |
6.96E+08 |
0.06 |
2.67E+27 |
1.13E+12 |
8.51E+07 |
7.88E+07 |
|
|
|
|
Mercury |
19.193 |
|
6.7E-11 |
1.99E+30 |
6.96E+08 |
0.06 |
3.30E+23 |
5.79E+10 |
2.44E+06 |
2.44E+06 |
|
|
|
|
|
|
Venus |
23.698 |
|
6.7E-11 |
1.99E+30 |
6.96E+08 |
0.06 |
4.87E+24 |
1.08E+11 |
6.05E+06 |
6.05E+06 |
|
|
|
|
|
|
Earth |
18.709 |
|
6.7E-11 |
1.99E+30 |
6.96E+08 |
0.06 |
5.97E+24 |
1.50E+11 |
6.38E+06 |
6.36E+06 |
|
|
|
|
|
|
Mars |
21.733 |
|
6.7E-11 |
1.99E+30 |
6.96E+08 |
0.06 |
6.42E+23 |
2.28E+11 |
3.40E+06 |
3.38E+06 |
|
|
|
|
|
|
Jupiter |
474.557 |
|
6.7E-11 |
1.99E+30 |
6.96E+08 |
0.06 |
1.90E+27 |
7.79E+11 |
7.15E+07 |
6.69E+07 |
|
|
|
|
|
|
Saturn |
1196.192 |
|
6.7E-11 |
1.99E+30 |
6.96E+08 |
0.06 |
5.68E+26 |
1.43E+12 |
6.03E+07 |
5.44E+07 |
|
|
|
|
|
|
Uranus |
159.701 |
|
6.7E-11 |
1.99E+30 |
6.96E+08 |
0.06 |
8.68E+25 |
2.87E+12 |
2.56E+07 |
2.49E+07 |
|
|
|
|
|
|
Neptune |
76.215 |
|
6.7E-11 |
1.99E+30 |
6.96E+08 |
0.06 |
1.02E+26 |
4.50E+12 |
2.48E+07 |
2.43E+07 |
|
|
|
|
|
|
Pluto |
|
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|
When all planets orbit the Sun, the rotation period of the Sun
=609.085 hr. |
|
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|
|
When all planets except Pluto orbit the Sun, the rotation period
of the Sun =609.094 hr. |
|
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|
|
So, Pluto can fasting the rotation period of Sun by only 0.009
hr. if it rotates with all planets around Sun. |
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|
This is because the Giant planets can control the rotation of
Sun very well. |
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8-Conclusion: |
|
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|
|
If a small body of mass (m) orbits a large body of mass (M)
then, may be we can calculate the sidereal rotation period of the large
body (M). |
|
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|
|
The moons are "driving" the rotation of their parent planet in
the same way, as sun's rotation is being controlled by the
planets. |
|
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|
|
The Earth rotation period is going to be faster as a result of
increasing Earth- Moon distance. |
|
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|
|
From the rotation equation, the Earth is fastening it's rotation
period by -0.43
milliseconds/century.(if the moon orbits the Earth in a circular
pass) |
|
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|
|
If a small body of mass (m) orbits a large body of mass (M)
then, the rotation period of (M) increased by decreasing the moment of
inertia factor (K) for (M). |
|
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|
|
The Moment of inertia factor of Haumea may be expected to be
0.37 from the rotation equation. |
|
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|
|
A perfect correlation between lunar declination and the changes
of leap seconds.(UT1-UTC)-(UT1-UTC) |
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|
|
From UT-UtC, the Earth rotation period increases when the moon orbit inclination plane
is perpendicular to the Earth equator |
|
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|
|
From UT-UTC, the Earth rotation period decreases when the moon
orbit inclination plane reaches to it's max. inclination |
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