Question

Suppose that astronomers have discovered a new variable star that is either a Cepheid or an RR Lyrae. Which of the following properties of the star would NOT be helpful to use in determining which type of star it is___________.

Answer 1

Answer:

Distance.

Explanation:

When determing which type of star a newly found star is, the less helpful property to know would be the distance. The light, mass, brightness, colour, the surface temperature are helpful but not the distance which generally implies nothing.