What is astrometry?
A)searching for planets around stars
B)measuring distances to stars
C)measuring the velocities of stars via the Doppler effect
D)using metric units for distance (e.g., meters rather than light years)
E)measuring the positions of stars on the sky

Question

Quizplus · Accepted Answer

Astrometry is the branch of astronomy concerned with measuring the positions of celestial objects on the celestial sphere. This includes measuring the positions of stars in the sky, as well as motion and distances of celestial objects.

What Is Astrometry