Question

What does the angle of parallax determine?

Answer 1

angle between the Earth at one time of year, and the Earth six months later, as measured from a nearby star.

Answer 2

That is a parallax star. Hope that helped a medal would really be appreciated.

Answer 3

The parallax angle is the angle between the Earth at one time of year, and the Earth six months later, as measured from a nearby star. Astronomers use this angle to find the distance from the Earth to that star.