Author Question: Stage 4 of star formation is when the object can exhibit violent surface activity producing ... (Read 90 times)

vHAUNG6011 · **on:** Jul 27, 2018

Stage 4 of star formation is when the object can exhibit violent surface activity producing extremely strong protostellar winds. This phase is also called the:

A) protostar phase.
B) Herbig-Haro phase.
C) brown dwarf phase.
D) T Tauri phase.
E) protoplanetary nebula phase.

Question 2

Between us and the Galactic Center, the Milky Way has a mass of:

A) several hundred thousand suns.
B) one to two million suns.
C) 250 million suns.
D) 100 billion suns.
E) over a trillion suns.