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2 votes
1 answer
113 views

Why do so many moons in the solar system orbit retrograde?

5 votes
4 answers
2k views

Could two moons orbit each other around a planet?

3 votes
1 answer
92 views

Orbit equation solver giving wrong orbits

1 vote
0 answers
44 views

Could mars become volcanically active if it is pulled into a highly eccentric orbit

13 votes
4 answers
5k views

Is the barycenter of the solar system usually outside of the sun?

1 vote
1 answer
1k views

What does an inclination of 0 degrees mean?

7 votes
2 answers
2k views

What can be learned from viewing the sun on earth during a total eclipse that cannot be studied by spacecraft in orbit?

0 votes
0 answers
34 views

Project Analog Hypothetical Planet

1 vote
0 answers
87 views

Have measurements been conducted on the position of the galactic center of mass and the orbit of the presumed black hole at the center?

3 votes
1 answer
149 views

Is the Moon really oscillating around its orbit as seen from Earth?

12 votes
4 answers
9k views

Is any 3 body system known?

2 votes
2 answers
107 views

Is the Moon's orbital plane angle relative to the ecliptic constant?

4 votes
1 answer
70 views

Copernican model for motion of Mars in Solar Ecliptic Coordinate System

2 votes
2 answers
107 views

Will a circular orbit cause doppler shift?

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