Question

Suppose there was a star with a parallax angle of 1 arcsecond. How far away would it be? Select all that apply.

Answer 1

Answer:

option E

Explanation:

given,                          

Parallax angle(d) = 1 arcsecond

using Parallax formula                  

      $d = \dfrac{1}{p}$

 p is the parsecs angle which is measured in 1 arcsecond

 d is the distance in parsec

now,                                            

      $P = \dfrac{1}{d}$

      $P = \dfrac{1}{1}$

      $P = 1 \ parsec$

we know,                                  

    1 parsec = 3.26 light year

hence, the answer will be option E