Stars located in a certain cluster are assumed to be about the same distance from us Two such stars have spectra that peak at 1 500 nm and 2 700nm, and the ratio of their apparent brightness is l1 l2 0 091 Estimate their relative sizes (give ratio of their diameters) ...

Wiens law says that the T a where a is a constant and ...

Stars located in a certain cluster are assumed to be about the same distance from us. Two

Question:

Stars located in a certain cluster are assumed to be about the same distance from us. Two such stars have spectra that peak at λ1 = 500 nm and λ2 = 700nm, and the ratio of their apparent brightness is l1/l2 = 0.091. Estimate their relative sizes (give ratio of their diameters).