Author Question: In the context of the Hertzsprung-Russell (H-R) diagram, which of the following statements is true ... (Read 60 times)

haleyc112 · **on:** Jul 27, 2018

In the context of the Hertzsprung-Russell (H-R) diagram, which of the following statements is true of the most massive main-sequence stars?

A) They are the reddest stars.
B) They are the coolest stars.
C) They are the hottest stars.
D) They are the faintest stars.

Question 2

In the context of the triangulation method, to find the distance to a star, astronomers use a very long baseline, which is _____.

A) the size of Earth's orbit
B) the diameter of Earth's orbit
C) three times the radius of Earth's orbit
D) double the size of Earth's orbit