In general, the narrower the spectral line of a star A) the ...

[dollx]

In general, the narrower the spectral line of a star
 
  A) the hotter the star is.
  B) the bigger the star is.
  C) the denser the star is.
  D) the smaller the star is.
  E) the cooler the star is.

Question 2

Noting the turnoff mass in a star cluster allows you to determine its:
 
  A) distance.
  B) radial velocity.
  C) age.
  D) total mass.
  E) number of stars.

[cassie_ragen]

Answer to Question 1

B

Answer to Question 2

C

[dollx]

Thanks for the timely response, appreciate it

[rachel]

Great answer, keep it coming