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seen Apr 1 '13 at 4:50

Dec
9
comment How much of the universe is observable at visible wavelengths?
"The image of a star is not a tiny circle, but a diffuse spot" + the Airy diffraction pattern... am learning so much
Dec
9
comment How much of the universe is observable at visible wavelengths?
Followed your link to Olbers' paradox and (2 hours later) wanted to say thanks. Very enlightening.
Dec
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awarded  Supporter
Dec
8
comment How much of the universe is observable at visible wavelengths?
@John Rennie Thanks for taking the time to answer and update. I'm surprised it's as little as 5% but you've put forth a convincing case.
Dec
8
comment How much of the universe is observable at visible wavelengths?
Thanks for the comprehensive answer. Has given me a lot to think about.
Dec
7
awarded  Student
Dec
7
comment How much of the universe is observable at visible wavelengths?
Am fascinated by the hubble deep and ultra deep fields... Also taking into account future Webb telescopes etc.. However they do not take into consideration the angular sizes of Milky Way stars and galaxies beyond... Note that the Hubble deep field was chosen because it was a very dark region of sky. It's not a good representation of what is the percentage of the universe that is blocked from our telescopes.
Dec
7
comment How much of the universe is observable at visible wavelengths?
Am fascinated by the hubble deep and ultra deep fields...
Dec
7
comment How much of the universe is observable at visible wavelengths?
I would also like to note, I'm referring to a frozen point in time. Mainly to avoid all those nasty differential equations...
Dec
7
awarded  Editor
Dec
7
revised How much of the universe is observable at visible wavelengths?
deleted 2 characters in body
Dec
7
comment How much of the universe is observable at visible wavelengths?
I will humbly defer to your 'angular size' replacement of 'parallax angle'. In layman's terms: stars and galaxies block optical views. The closer they are the more they obscure
Dec
7
asked How much of the universe is observable at visible wavelengths?