by starnut » Tue Jan 15, 2008 1:44 am
1. " formed about 100,000 years ago" ? I assume that was when nuclear fusion started in the core, otherwise that seems too short a time for a massive star like this one to form. Even so, shouldn't it take longer than 100,000 years for the heat to reach the surface and make it shine?
2. Why do the two stars on the botton left corners have yellowish "halos" compared with the others which have blue "halos"?
3. I wish there is a way to know if the bright stars are average stars in the foreground or massive stars farther away.
4. The rich star field makes me wonder if the Hippocaros survey has recorded and cataloged every one of the stars.
1. " formed about 100,000 years ago" ? I assume that was when nuclear fusion started in the core, otherwise that seems too short a time for a massive star like this one to form. Even so, shouldn't it take longer than 100,000 years for the heat to reach the surface and make it shine?
2. Why do the two stars on the botton left corners have yellowish "halos" compared with the others which have blue "halos"?
3. I wish there is a way to know if the bright stars are average stars in the foreground or massive stars farther away.
4. The rich star field makes me wonder if the Hippocaros survey has recorded and cataloged every one of the stars.