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Sep
16
comment Which kind of properties can we get for cosmic ray particles hitting on an optical ccd?
Are you talking about background issues? Could you give an example of a CCD hit by a cosmic ray? Usually CCD detectors are "protected" against such a radiation.
Sep
16
comment Which kind of properties can we get for cosmic ray particles hitting on an optical ccd?
Please clarify your question, ask one question at time. The topic is very confused and too broad in my opinion.
Sep
5
comment Save current state in ds9?
Did you try to export?
Aug
29
comment Gallery of 'actual images' from space?
Of course, they are optimized. Yet, there is no fabrication. The images are real.
Aug
29
comment What is the relative time difference between us and a star system in outer layer of our galaxy?
What do you mean by time difference? Do you mean something like: "if we shoot a photon towards that system, how long does it take to arrive?"?
Aug
26
comment How many light years away is Earth from the closest outer edge of the black hole at the center of the Milky Way?
Copy the link, do not just click on it: the * is not included in the link, and it send to a wrong page.
Aug
26
comment How many light years away is Earth from the closest outer edge of the black hole at the center of the Milky Way?
en.wikipedia.org/wiki/Sagittarius_A*
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
11
comment What is CMB radiation doing to the universe?
@Yashbhatt, I think it is uniquely observational: link.
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