09-23-2018, 12:07 AM
All was a glorious sight!
Joe, thanks for the "heads-up". That was a wonderful display! Yes, you're so right- a few, hundreds, thousands or millions of light years to reach our eyes. And you were there to see them! Curious, isn't it, that you and I can stand on different parts of the earth and see the same light. Isotropic scattering of light from a star- and the entire universe, generally speaking, sees the same light. And more- that a star, from our point of view, has no sensible diameter. It's a dot. I wonder if astronauts see them clearly as just that?
Carlos
Joe, thanks for the "heads-up". That was a wonderful display! Yes, you're so right- a few, hundreds, thousands or millions of light years to reach our eyes. And you were there to see them! Curious, isn't it, that you and I can stand on different parts of the earth and see the same light. Isotropic scattering of light from a star- and the entire universe, generally speaking, sees the same light. And more- that a star, from our point of view, has no sensible diameter. It's a dot. I wonder if astronauts see them clearly as just that?
Carlos