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  • 14 votes cast
Aug
31
accepted Assuming an observer is 50 light years away, in the plane of the solar system and observing earth, what is the light flux of earth he would see?
Aug
30
comment Assuming an observer is 50 light years away, in the plane of the solar system and observing earth, what is the light flux of earth he would see?
Okay, question inverted
Aug
30
comment Assuming an observer is 50 light years away, in the plane of the solar system and observing earth, what is the light flux of earth he would see?
Hm - just assume full phase, Earth-size, average Earth albedo, and 50% illumination over the entire visible to IR range
Aug
29
asked Assuming an observer is 50 light years away, in the plane of the solar system and observing earth, what is the light flux of earth he would see?
Aug
26
accepted What distinguishes a moon from orbiting space debris? Or in other words, when is a satellite “too small” to be a moon?
Aug
25
accepted Are our telescopes capable of taking actual images of brown dwarfs?
Aug
25
asked Are our telescopes capable of taking actual images of brown dwarfs?
Aug
22
accepted Is angular resolution important when we want the spectra of an Earth-like exoplanet?
Aug
20
accepted Does the Earth help stabilize changes in the moon's obliquity as well?
Aug
20
accepted How are galaxy filaments formed? And do they have any analogues in stellar formation?
Aug
20
accepted For resolving different objects, are there any alternative coefficients to the one used in the Rayleigh criterion? (which is 1.22)
Aug
20
comment What distinguishes a moon from orbiting space debris? Or in other words, when is a satellite “too small” to be a moon?
Oh, good points. Do all of Saturn's inner moons clear the regions around them? (and thus form gaps?)
Aug
20
asked What distinguishes a moon from orbiting space debris? Or in other words, when is a satellite “too small” to be a moon?
Aug
19
accepted How are accelerated reference frames non-symmetrical?
Aug
19
asked How are accelerated reference frames non-symmetrical?
Aug
18
comment What are some molecules stable in outer space that are unstable under terrestrial conditions?
Well, asking for specific examples is fine? It is a broad question, but we don't even know most of them. Getting a fraction of them is a lot better than nothing.
Aug
18
asked What are some molecules stable in outer space that are unstable under terrestrial conditions?
Aug
18
comment Most accurate ways to find the average distance between stars in Milky way galaxy
Oh, very good points there - thanks! I'll try to add those points in when I have some time
Aug
18
accepted Are telescopes with a concave lens useful for astronomy?
Aug
18
comment For resolving different objects, are there any alternative coefficients to the one used in the Rayleigh criterion? (which is 1.22)
Oh cool. So what if the final goal is the goal you've just mentioned? I'm just interested in cataloging all the final goals.