The brightest stars of a young open cluster will be
A.Cepheid variables.
B.Massive blue main sequence stars.
C.Red giants.
D.Yellow main sequence stars like the Sun.
E.T Tauri variables.
2007-01-03 12:35:39 · 4 answers · asked by Anonymous in Science & Mathematics ➔ Astronomy & Space
Red giants and Cepheid variables are evolved stars and therefore not found in young clusters. T Tauri and yellow main sequence stars (G dwarfs) are stars of modest size and luminosity.
Massive blue main sequence stars (O dwarfs) are found *only* in young clusters because their life expectancy is short. That's your answer.
Blue eyes is confused about giant stars - they're not any more massive than dwarfs, just more inflated.
2007-01-03 13:21:03 · answer #1 · answered by injanier 7 · 0⤊ 0⤋
B.Massive blue main sequence stars.
2007-01-03 21:32:45 · answer #2 · answered by bldudas 4 · 0⤊ 0⤋
B. Massive blue stars are burning hot, and thus give off lots of light, so they would be the brightest.
2007-01-03 21:05:44 · answer #3 · answered by Roman Soldier 5 · 1⤊ 0⤋
eigther B or C.... im picking... wait you cant have a massive main sequence star... so C red giant =) earth science exam = 80% CHYEAHH
2007-01-03 20:48:22 · answer #4 · answered by Anonymous · 0⤊ 1⤋