When we look at stars in the sky, we see a wide range of brightness. This job explains the factors that would make one star appear brighter than another.
Properties of Stars - 1. Explain the difference between Absolute Brightness and Apparent Brightness.
2. (a) When determining the temperature of an isolated star, do we require the distance to the star ? Explain.
(b) W ...
Brightness of a Supernova - Suppose that the brightness of a star becoming a supernova increases by 20 magnitudes. Show that this corresponds to an increase of 10^8 in luminosity.
This job computes star distances. - Two stars A and B have the same Luminosity and Surface Temperature which turn out to be 3 times the Luminosity of the Sun. Star A is 10 L-Y away from the Sun and Star B is 150 L-Y away from the Sun. W ...