A star with a parallax angle of 0.39" (arcsecond) is what distance away? Give your answer in units of parsecs.

2.56 parsec

Explanation:

Parallax angle is the angle subtended by Earth over a gap of 6 months in its orbital path around the Sun with respect to a star. It can be used to measure the distance to the star.

Given: p = 0.39"

Substitute the value:

parsec          

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