# Science Question 1

Having nothing to do with trigonometry, what type of 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.video metric

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

bolometric

what?

1. 👍
2. 👎
3. 👁
1. americans west

1. 👍
2. 👎

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