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programming numerical algorithms for astrophysical applications.


11h
answered Why do (most of) the planets rotate counterclockwise, i.e. the same way the Sun does?
11h
answered The Existence of Natural Satellites in Geostationary Orbits
15h
revised Why don't planets give off their own light?
removed incorrect and confusing part of question.
1d
suggested suggested edit on Why don't planets give off their own light?
1d
comment What type of energy is escaping from black-hole's poles?
@HDE226868 Cannot, for that question has been put on hold (no answers possible).
1d
revised Why don't planets give off their own light?
added 97 characters in body
2d
revised Why don't planets give off their own light?
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2d
comment Why don't planets give off their own light?
See my answer. The energy source of a stars is thermonuclear fusion in their core (requiring $T\gg10,000$K), but the light is emitted at the stellar surface as the black-body radiation with $T\sim5000$K.
2d
answered Why aren't there galaxy-sized balls of iron out there?
2d
revised What type of energy is escaping from black-hole's poles?
edited body
2d
answered Why don't planets give off their own light?
2d
comment Why don't planets give off their own light?
-1 this is wrong. The light is not produced by fusion.
2d
answered What type of energy is escaping from black-hole's poles?
Jun
15
revised What is the difference between gas and dust in astronomy?
added 4 characters in body
Jun
15
answered What is the difference between gas and dust in astronomy?
Jun
15
answered Where can I find a catalog of all stars in the Milky Way?
Apr
12
comment What is the name of that which exists beyond the Universe?
This question appears to be off-topic because it is about philosophy. What's more, it does seem to cause discussion rather than seek for an answer.
Apr
12
comment Satellite/Planetary Orbits
I think only two of the 5 Lagrange points support stable orbits. These are the non-co-linear ones. Asteroids trapped into such orbits are called Trojans and Greeks, respectively.
Feb
9
revised Do stars have exactly sphere shape?
deleted 4 characters in body
Feb
9
answered If the earth stopped rotating, would we really fly inertially at 1000mph?