How many stars (other than the Sun) have an angle of parallax greater than 1 second of arc?
A) about a hundred
B) Millions
C) None
D) only one

Question

Quizplus · Accepted Answer

No stars other than the Sun have an angle of parallax greater than 1 second of arc because a parallax of 1 second of arc corresponds to a distance of 1 parsec, which is about 3.26 light-years away. All stars other than the Sun are farther than this distance, resulting in a parallax angle of less than 1 second of arc.

How Many Stars (Other Than the Sun) Have an Angle