Question

A spectrograph helps astronomers to determine:
All that apply?
1. surface temperatures
2. composition of stars
3. radio signals from space
4. distance to stars
5. brightness of stars

Answer 1

Answer:

I may be wrong sir/ma’am, but I believe it’s 1. Surface temperatures. 3.radio signals from space. And 4. Distance of stars.

Explanation:

sorry y’all:(