Star questionnnnnnnn

Question

At what stage of evolution do T Tauri stars occur?

Answer:

a. Just as the collapsing cloud becomes luminous.

b. Just prior to the protostar stage.

c. When a protostar is on the verge of becoming a main sequence star.

d. After the star has established itself as a main sequence star

Answer 1

c

Answer 2

I'll bet you can find your answer here:

http://en.wikipedia.org/wiki/T_Tauri_sta...