Question

If we observe a star over 6 months and obtain a parallax angle (p) for the star, how can we calculate the distance to the star?
A. distance = p2 B. distance = 1/p C. distance = p-1

Answer 1

B. Distance is 1/p

Answer 2

hmm

Answer 3

where p is the angle in arc seconds and the distance is in parsecs

Answer 4

This parallax angle is also referred to as a parallax shift. As Stan pointed out, it is measured in parsecs. (Hon Solo would have you believe it is a measure of time - but that is a different discussion)