0
1. Earth-Moon distance From Earth Center (EC) to Moon in km : Moon is a natural satellite of earth. For any satellite, to predict its instantaneous distance
from earth requires its ephemeris data which indicates the satellite's orbital parameters
known as Keplerian elements. The ephemeris data acquired on a particular day, called
epoch, is applied as input to satellite tracking software for accurate predictions of satellite
position in next few days. Thereafter a new set of Keplerian elements are acquired. The computed values of Distances from Earth Centre (EC) to Moon in km at Epoch (UT year
= 2014, month = 5, day = 23, hr = 3, min = 59, sec = 20.61457) and at four other specific
instances of Year = 2013 while Moon was at apogee, perigee and crossing over earth
equator at ascending & descending nodes were as follows : GMT Time (Y M D h m s) - - -Moon Position (instance) - - - - Earth-Moon Distance (km)
2014:05:23:03:59:20 - - - - - - Epoch - - - - - - - - - - - - - - - - - - - 368644.28
2014:06:02:18:36:48 - - - - - - Apogee - - - - - - - - - - - - - - - - - -402802.27
2014:06:06:10:09:59 - - - - - - Earth Equator - - - - - - - - - - - - - 396714.18
2014:06:16:10:28:23 - - - - - - Perigee - - - - - - - - - - - - - -- - - - -363564.67
2014:06:19:11:12:09 - - - - - - Earth Equator - - - - - - - - - - - - - 368681.22
2014:06:30:02:19:58 - - - - - - Apogee - - - - - - - - - - - - - - - - - - 402802.04
2014:07:03:17:53:08 - - - - - - Earth Equator - - - - - - - - - - - - - 396808.49
2014:07:13:18:11:34 - - - - - - Perigee - - - - - - - - - - - - - - - - - - 363565.04
2014:07:16:18:55:18 - - - - - - Earth Equator - - - - - - - - - - - - - 368586.79 It is clear as how much the distance of Moon from Earth Centre vary. Since epoch the
minimum distance was 363564.67 km and the maximum distance was 402802.27 km.
2. Earth-Sun distance From Earth Centre to Sun Centre (EC to ES) in km : Earth Revolves around Sun in a counter clockwise direction. The earth's orbit around the
sun is not a circle, it is slightly elliptical. Therefore, the distance between Earth and Sun
varies throughout the year. To predict Earth-Sun distance any instant of time, we must
know the position of Earth and Sun at same instant on Celestial Sphere. For computing the position of Earth on celestial sphere at any instant, we first need to
compute position of Sun on celestial sphere. That provides many inputs required to
compute position of Earth at same instant on celestial sphere. The computed values of Distances from Earth Centre (EC) to Sun Centre (SC) in km at
Standard Epoch JD2000 and at six other specific instances of Year = 2013 while Earth was
at Perihelion, Vernal equinox, Summer solstice, Aphelion, Autumnal equinox, Winter solstice
were as follows :
GMT Time (Y M D h m s) - - -Earth Position (instance) - - - Earth-Sun Distance (km)
2000:01:01:12:00:00 - - - - - - Standard Epoch - - - - - - - - - - 147101196.66164
2013:01:03:09:11:56 - - - - - - Perihelion - - - - - - - - - - - - - - -147098790.67105
2013:03:20:11:02:09 - - - - - - Vernal equinox - - - - - - - - - - -148990030.62423
2013:06:21:05:01:19 - - - - - - Summer solstice - - - - - - - - - -152030553.38444
2013:07:05:00:18:52 - - - - - - Aphelion - - - - - - - - - - - - - - - - 152098441.95238
2013:09:22:20:45:38 - - - - - - Autumnal equinox - - - - - - - - 150128324.53014
2013:12:21:17:10:03 - - - - - - Winter solstice - - - - - - - - - - - 147162430.96729
It is clear that the distance of Earth Centre (EC) from Sun Centre (SC) vary throughout the
year. In the Year 2013 minimum distance was 147098790.67105 km and maximum
distance was 152098441.95238 km. Note : All these values are computed using the Orbital Mechanics - Model & Simulation
Software OM-MSS.
Alden Kling
Add your answer:
Earn +20 pts
Is earth closer to the sun then the moon?
Yes - and no !... The moon orbits the earth - so - there will be times each day, when it's closer to the sun than the earth is. During the earth's 'night time' - the moon is further away from the sun.
What is biggest between Sun moon earth?
sun moon and earthBetween the Sun, Moon and the Earth, the Sun is the biggest.
What is the arrangement of earth the moon and the sun of a lunar eclipse?
Sun, Earth, Moon. The moon is covered by the Earth's shadow.
Is the sun or the moon furthest from earth?
The Moon is farther from the Sun, roughly the same average distance from the Sun as the Earth. The Sun is nearly 400 times farther from the Earth and Moon (150 million kilometers) than the Moon is from the Earth (about 384,000 kilometers).The center of the Earth is around 240 thousand miles away from the center of the Moon. The earth is around 93 millionmiles away from the sun. Therefore, the Moon is much, much farther away from the Sun than it is from the Earth.
What is the correct order during a lunar eclipse?
during a lunar eclipse, earth, sun and moon are in a straight line, First it's the sun, then earth, and last the moon.
What do the distances of the the moon to the earth and the sun to the earth mean?
"Distance" means how far two object are from one another. In this case, how far the Moon is from Earth, or how far the Sun is from Earth.
How far is the earths moon from mercury?
Varying from the the distance from the Earth to the Moon + the distance from the sun to the earth + the distance from mercury to the sun, to the distance from the earth to the sun - the distance from mercury to the sun - the distance from the earth to the moon
The Sun is closer to the Earth than the Moon is true or false?
False :)========================The sun is about 390 times as far from earth as the moon is.
How far away is earth from the sun and the moon?
From the Sun: about 150 million kilometers. From the Moon: about 380,000 kilometers.
Why does the sun not affect the tides as much as the moon does?
The sun is approximately 372 times as far from the Earth as the moon is.
Is the moon as hot as the Sun because it is close to it?
No, the Moon is nowhere near as hot as The Sun, and the Moon is as far away from the Sun (on average) as Earth is.
What type of eclipse occurs when the Earth Moon and Sun are lined up and the moon is on the other side of the earth far from the sun?
a Lunar Eclipses
IS THE EARTH'S MOON CLOSER TO THE EARTH OR THE SUN?
The Sun is at the same average distance from both the Earth and the Moon because the Earth-Moon system orbits the sun. However, since the Moon orbits around the Earth, it is sometimes closer to the Sun than is the Earth, and sometimes farther. But the difference is negligible since the Sun is more than 380 times as far from Earth as the Moon.
Is earth closer to the sun then the moon?
Yes - and no !... The moon orbits the earth - so - there will be times each day, when it's closer to the sun than the earth is. During the earth's 'night time' - the moon is further away from the sun.
How far away from the earth is the moon compared to the sun?
0.00257%
Sun or moon which one is far from earth?
Moon is 250,000 miles away. Sun is 93,000,000 miles away.
How far from the sun is the moon in kilometers?
The moon's average distance from the sun is exactly the same as the Earth's ... about 149,597,870 kilometers.
