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Aug
20
comment Why don't planets give off their own light?
@Walter, and by what?
Aug
19
comment Why aren't there galaxy-sized balls of iron out there?
Your hypothesis is not correct: not all stars produce iron. Conversely, the most of them have not enough mass to do it.
Aug
19
comment How was an infrared picture of the entire universe taken?
1) It is not the universe but a Galaxy. 2) You should give a reference. 3) I am not even sure it is in infrared. You should read carefully the astro-stuff :)
Aug
15
comment What is CMB radiation doing to the universe?
@Yashbhatt, I don't think it is correct to state it this way, but yes, observationally speaking dark energy starts to rule in the "modern" Universe. I guess, it is a matter of balance among the energy contributions from Friedmann equations.
Aug
13
comment Weight of a celestial body
Try to guess! Here a hint: Gravity... (not the movie)
Aug
12
answered Difference between quasar and Active Galactic Nuclei?
Aug
12
comment fit sine wave to data
You said by yourself: the fit.
Aug
11
comment What is CMB radiation doing to the universe?
@Yashbhatt, I think it is uniquely observational: link.
Aug
11
comment Python troubles
Try #!/usr/bin/env python in the first line. However, this belongs to Stackoverflow, not here.
Aug
7
answered Gallery of 'actual images' from space?
Aug
7
comment What is CMB radiation doing to the universe?
Actually, the Universe's expansion is accelerating NOW. It was not always like this. We are now in a period of accelerated expansion.
Aug
6
comment Aren't there more naked-eye-visible stars in the Milky Way plane?
I guess, you meant $25 kly = 8 kpc$.
Jul
16
comment Accurate way to programmatically generate a main sequence star?
@MMM, you are very welcome! Good luck :)
Jul
11
revised Accurate way to programmatically generate a main sequence star?
deleted 46 characters in body
Jul
11
revised Accurate way to programmatically generate a main sequence star?
Improved explanation with a clear figure
Jul
10
comment What is the explanation for rapid inflation just after the big bang?
Afaik, there is no physical reason for it. Inflation is a model to explain some observations, but I never heard about forces or conditions which caused it. I hope someone more expert can say something.
Jul
10
comment What is the farthest point of light that is emitted by a torch?
Why did you post this question in this SE? XD
Jul
10
answered Accurate way to programmatically generate a main sequence star?
Jul
10
revised regarding spectral type of a star
Corrected equation
Jul
9
comment Are there a lot of collisions between stars in the core of the galaxy?
Very good, thank you. It seems I was wrong. But, from a quick look at the paper, it seems there are no observational evidences for this, even if many arguments point to the expectation of such events.