Questions tagged [moons]

Questions about celestial bodies that orbit another celestial body.

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2answers
293 views

Is “interlunar” applicable to the moons of other planets?

We have intergalactic to describe the area between galaxies. And interstellar space is between star systems. And interplanetary is between planets. Is the term "interlunar" applicable to the space ...
2
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1answer
130 views

Next lander/rover mission

Beyond Mars and 67P, what is the next most viable mission for probe landing? How far are we from sending one to the Jupiter or Saturn system?
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0answers
198 views

Why haven't Saturn's rings coalesced into moons/satellites? [closed]

The rings of Saturn are made up of tiny particles/rocks/ice that all orbit Saturn. Each individual particle is bound to its orbit because of Saturn's gravity, but each particle also pulls on all of ...
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1answer
4k views

Satellites in retrograde vs prograde orbit [closed]

I read somewhere that Israel launched satellites in retrograde orbit. America also has some satellites in retrograde orbit. I am new to this concept, so I am curious: 1. What are the benefits/...
1
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1answer
158 views

Why is the velocity of a satellite the result of a sum of two velocities? (clarifying img included)

I am a newbie when it comes to orbital mechanics. The velocity of a spacecraft is given by a sum of two types of velocities. But I don't understand the difference between both velocities: $V = V_{кр}...
1
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1answer
358 views

The Earth's Moon versus Phobos and gravity

Our Moon weighs 7.35 x 1022 kg and Mars' moon Phobos, weighs 10.6 × 1015 kg. How much would need to be added to Phobos to give it the same gravitational "impact" on Mars, as the Moon ...
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0answers
117 views

If the moon's orbit decays- how would it effect the moon's phases? [closed]

If a planet passed near the moon and caused its orbit to decay down to earth- how long could it take and how would that effect the visible phases of the moon on earth?
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0answers
35 views

Pluto orbiter mission design [duplicate]

Are there plans on what an orbiter to Pluto might look like? Specifically, in the type of orbit one would do at the system. With the center of mass of Pluto/Charon being outside of either object, it ...
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2answers
222 views

How big a nuke would be needed to break Phobos out of orbit?

Phobos Radius: 11.267 km Orbital period: 8 hours Equatorial rotation velocity: 11.0 km/h (6.8 mph) (at longest axis) With an 8 hour orbit around Mars it must be going at a fair clip already which ...
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0answers
87 views

Saturn's Pan and Prometheus orbital resonance

Is it possible for a small object (such as a manned capsule) to realize a maneuver using the orbital resonance influence of Saturn's moons Pan and Prometheus?

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