Astronomy Stack Exchange is a question and answer site for astronomers and astrophysicists. It only takes a minute to sign up.

Sign up to join this community
Anybody can ask a question
Anybody can answer
The best answers are voted up and rise to the top

Explore our Questions

3 votes
2 answers
376 views

Are the planets Mercury, Saturn, Uranus and Neptune losing mass?

1 vote
3 answers
192 views

Is there a Lagrange point between the earth and the moon?

1 vote
0 answers
26 views

What are the time periods of precession of equinoxes of other planets?

5 votes
1 answer
85 views

If the Earth became tidally locked with the moon, would that last forever?

4 votes
3 answers
3k views

Why do most dwarf planets have mass comparable to moon?

8 votes
1 answer
913 views

How am I supposed to locate the planets Uranus and Neptune with a 70 mm f/5.7 refractor?

3 votes
0 answers
81 views

Why aren't there sulfuric acid seas on Venus?

1 vote
2 answers
97 views

Could a magnetosphere be created for Venus by recreated by spinning-up the planet to a 24 hour day?

17 votes
3 answers
5k views

If planets are ellipsoids why don't we have 3 diameters?

4 votes
3 answers
246 views

How do rocky planet break up? Would they fragment into "a gazillion" rocky pieces pieces, or crack open like an egg?

12 votes
1 answer
2k views

Daylight hours on Titan?

3 votes
1 answer
72 views

Accurate formula for calculating the mass of an exoplanet using the transit method

1 vote
2 answers
89 views

Planet's distance data from JPL Horizons - Mars Curiosity mission

3 votes
2 answers
161 views

How to calculate the limb darkening $\mu$ value

Browse more Questions