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seen Dec 12 at 17:37

programming numerical algorithms for astrophysical applications.


Dec
18
awarded  Yearling
Dec
12
answered Why are stars so far apart?
Dec
12
comment What is the most oblate astronomical object known?
The question is still ill-posed. Strictly speaking, there are no oblate spheroids. Oblate spheroid is a concept and real objects can only ever approximate such a concept. The question then is how well does the object have to satisfy this concept? There may be a pretty flat asteroid which happens to be near oblate (but not flattened by rotation, of course -- that was not required in the question).
Dec
11
comment What is the most oblate astronomical object known?
I think your question is ill-posed, as it uses the concepts of polar and equatorial diameter. However, for an irregular object these are not well-defined.
Dec
11
answered What is the most oblate astronomical object known?
Dec
11
comment What is the most oblate astronomical object known?
Well, that's not what you've asked (originally). Perhaps you should qualify your answer then. IHMO, my suggestions are not trick answers, but honest and correct answers to your original question.
Dec
9
comment What is the most oblate astronomical object known?
What's an object? Would Saturn's rings qualify? -- they are pretty flat. Otherwise, what about the Galactic disc? or other astrophysical discs (accretion discs have aspect ratios 1:1000)? None of these are fully self-gravitating: there is always a round component contributing or even dominating gravity...
Dec
7
answered How to convert a gravitational force to speed and direction
Dec
4
awarded  Custodian
Dec
4
reviewed Leave Open How can there be anything “beyond” the CMB?
Dec
4
answered Could discoid galaxies be expanding?
Dec
3
comment Why does the distance between Sun and Earth stay the same?
@StanLiou Do you have a www reference for that?
Dec
3
comment Why does the distance between Sun and Earth stay the same?
Being pushed some way doesn't imply that you're necessarily falling that way. See also the update to my answer.
Dec
3
revised Why does the distance between Sun and Earth stay the same?
added 616 characters in body
Dec
3
revised Why does the distance between Sun and Earth stay the same?
improved title
Dec
2
revised Why does the distance between Sun and Earth stay the same?
added 152 characters in body
Dec
2
answered Why does the distance between Sun and Earth stay the same?
Dec
2
comment Why does the distance between Sun and Earth stay the same?
did you mean to ask why the Earth-Sun distance remains unchanged?
Dec
2
awarded  Citizen Patrol
Dec
1
comment Likelihood of a stable system with a dwarf planet's orbit inside that of a gas giant
The orbit of a dwarf planet in the inner planetary system is almost certainly chaotic and hence unstable, unless it is in orbital resonance with a major planet.