Having nothing to do with trigonometry, ________ parallaxes use ...

[darbym82]

Having nothing to do with trigonometry, ________ parallaxes use the width of absorption lines to estimate the star's luminosity and size and distance.
 
  A) bolometric
  B) photometric
  C) spectroscopic
  D) holographic
  E) videometric

Question 2

The brightest stars in aging globular clusters will be:
 
  A) core stars of planetary nebulae.
  B) massive blue main sequence stars like Spica.
  C) blue stragglers.
  D) red supergiants like Betelguese and Antares.
  E) blue supergiants like Rigel and Deneb.

[amynguyen1221]

Answer to Question 1

C

Answer to Question 2

D

[darbym82]

Thanks for the timely response, appreciate it

[nguyenhoanhat]

Wow, this really help