2007-08-21 07:33:04 · 17 answers · asked by COLIN D 1 in Science & Mathematics ➔ Astronomy & Space
Did you mean which planets have at least 2 moons? All the outer planets beyond Earth have at least 2 moons. Of course Pluto is not a planet anymore.
By the way
Tatooine has 2 Suns not moons.
2007-08-21 08:21:41 · answer #1 · answered by Anonymous · 1⤊ 0⤋
Several planets have two planets. Mars, Jupiter, Saturn, etc. All the larger planets have 2 moons, but they also have 3 moons and 4 moons, etc. Mars is the only one with ONLY two moons.
2007-08-21 08:42:01 · answer #2 · answered by Anonymous · 0⤊ 0⤋
Those are two entirely different questions, because a planet, by definition, is something that is already orbiting a star. it's not stable for two planets to share the same orbit, the closest that can be possible is for a planet to share its oribt with a minor body at one of its Lagrange points. It would be so minor that it would be moot to speak of "both of them sharing a common moon", as whatever that moon is would be orbiting primarily the main planet body. In the case of two planets on different orbits, with different orbit times, it's wildly improbable that there can even be a stable orbit for anything between the two, and just those two. In the case of binary stars, see the other answers already given. Addendum: The problem with this question is the definition of a moon. What makes a moon? And what does it mean to "share a common moon?" Worse, what's a planet?
2016-05-19 00:31:53 · answer #3 · answered by ? 3 · 0⤊ 0⤋
Mars is the only planet that has only two moons. Mercury and Venus have none, Earth has one (plus a few "fake" moons in Lagrange point orbits), Pluto has three. I don't remember how many the gas giants have--Jupiter and Saturn are both up above 60, I believe, and Uranus has at least 15. Can't remember about Neptune.
2007-08-21 07:46:49 · answer #4 · answered by Ryan H 6 · 2⤊ 0⤋
If you mean which planet only has 2 moons, its Mars.
But if you mean which planet has at least 2 moons, then its:
- Jupiter
- Saturn
- Uranus
- Neptune
- Pluto (if you still count it a planet)
2007-08-21 10:54:30 · answer #5 · answered by Anonymous · 0⤊ 0⤋
No planet has two moons as planets do not own them.
2007-08-21 10:55:44 · answer #6 · answered by MARKJ L 1 · 0⤊ 0⤋
Mars has two captured asteriods that are currently called "Moons".
. . . Hey, if Pluto is now a dwarf Planet; Phobos and Deimos should be dwarf Moons.
2007-08-21 08:01:14 · answer #7 · answered by RationalThinker 5 · 1⤊ 1⤋
Mars: Phobos, Deimos
2007-08-21 08:54:29 · answer #8 · answered by Mr. Smith 5 · 0⤊ 0⤋
Mars has two moons, but they're basically just captured asteroids. All of the gas giants have upwards of ten moons.
2007-08-21 08:13:13 · answer #9 · answered by Echo 5 · 0⤊ 1⤋
Mars: Phobias and Demois.
They are both about 20km accross and would take 13 hrs. and 56 mins. to cross them both. You can reach escape volocity by goining on a bike up a ramp.
2007-08-21 10:07:10 · answer #10 · answered by Anonymous · 0⤊ 0⤋