Multiple Choice
At what stage of its evolutionary life is the Sun?
A) Pre-main-sequence-variable star
B) Main-sequence-middle age
C) Post-main-sequence-red-giant (cool) phase
D) Just before supernova stage (perhaps 5 years) -late evolutionary stage
Correct Answer:

Verified
Correct Answer:
Verified
Related Questions
Q17: The end of the life of a
Q18: When protostars are FIRST formed from the
Q19: What is the Chandrasekhar limit and what
Q20: Prior to reaching the main sequence,a protostar's
Q21: A T Tauri star is at what
Q23: The source of a protostar's heat is<br>A)
Q24: Of the three phases of matter-gas,liquid,and solid-solids
Q25: What is the difference between Population I
Q26: Planetary nebulae are so-named because<br>A) these extended
Q27: A planetary nebula may take millions of