If a star has a parallax of 0.25", then its distance is about 13 light- years.

Name: If a star has a parallax of 0.25", then its distance is about 13 light- years.
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Quizplus · Accepted Answer

The parallax of a star is the angle at which it appears to move from two different points on Earth's orbit around the Sun. The distance to a star can be calculated using the formula distance = 1/parallax. In this case, the parallax is 0.25", which means that the distance to the star is 1/0.25 = 4 light-years.

If a Star Has a Parallax of 0