If a star has a parallax of 0.01 arcseconds what is its distance?

1 Answer
Mar 1, 2016

100100 parsecs or 326326 light years

Explanation:

There is an inverse relation between star's parallax and its distance. A star which has a parallax 11 arcseconds is at a distance of 1 parsec, which is equal to 3.263.26 light years.

Hence a star which has a parallax of 0.010.01 arcseconds, will be at a distance of 1/0.0110.01 or 100100 parsecs or 326326 light years.