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Can a planet with no atmosphere be orbited at extremely low altitudes?

orbit orbital-mechanics planetary-atmosphere velocity

answered 44 mins ago astrho 1

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What is the skypath of JWST?

orbit james-webb-space-telescope

asked yesterday Woody 665

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Does anyone know why three of Jupiter's largest moons orbit in 1:2:4 resonance?

orbit

modified Jan 10 at 13:55 fasterthanlight 5,384

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Accuracy of Laplace Method for determining orbital elements

orbit solar-system asteroids orbital-elements

modified Jan 10 at 5:23 Fred 1,216

3

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Is it still called an orbital resonance if the ratio is irrational?

orbit mathematics terminology orbital-resonance

answered Jan 6 at 21:08 zephyr 13.7k

8

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At what point are orbital resonances no longer "ordered" but "chaotic?"

orbit mathematics terminology orbital-resonance

answered Jan 5 at 19:28 Connor Garcia♦ 11.6k

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What is the maximum latitude from which a satellite in a geostationary orbit around Saturn would be visible to an observer on the planet?

orbit orbital-mechanics coordinate saturn

modified Jan 5 at 13:35 giardia 849

2

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Incorrect Mars orbital time while calculating using Kepler formula in Java

orbit astrophysics software

answered Jan 3 at 0:04 uhoh 31.1k

4

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Orbital terminology for satellites relative to one another

orbit natural-satellites terminology celestial-mechanics

answered Dec 30 '21 at 20:42 M. A. Golding 3,951

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How long would it take to realize there are "star-like objects" (i.e. planets) that change position in respect to the "fixed stars"?

observational-astronomy orbit planet history

modified Dec 30 '21 at 3:26 PM 2Ring 7,181

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What would change if Venus rotated at a speed and direction similar to Earth?

orbit rotation venus speed

modified Dec 26 '21 at 16:01 James K 81.6k

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What is the difference between barycentric-centered and heliocentric-centered coordinates?

orbit comets eccentric-orbit

answered Dec 24 '21 at 22:49 Mike G 16.4k

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How do you call it when two celestial bodies come as close to each other as they will in their current orbits?

orbit planet

modified Dec 24 '21 at 18:01 Grant Martin 11

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Does the Sun turn around a big star?

star orbit the-sun

modified Dec 24 '21 at 14:07 fasterthanlight 5,384

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