Recent content by Valium

I am new to astronomy, though really interested in it Just read up on stellar evolution from multiple sources, but have some questions about it Let me summarize the theory of stellar evolution 1. gas clouds collapse due to multiple mechanisms, e.g. shock wave, collision of clouds... 2. the...

right, so this should be the longest duration of lunar eclipse

I guess many have watched the lunar eclipse last night I was just thinking about the duration of a lunar eclipse on my way home sun-to-earth = 1.5x10^8 km, moon-to-earth = 384400 km R(Earth) = 6378 km, R(Sun) = 6.96x10^5 km, R(Moon) = 1378 km Moon's period around Earth = 27.3 days x /...