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julia-pushkina [17]
3 years ago
15

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

Physics
1 answer:
postnew [5]3 years ago
5 0

Answer:

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.

d (parsec)=\frac{1}{p (arcsecond)}

Given: p = 0.39"

Substitute the value:

d =\frac{1}{0.39"}=2.56 parsec          

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