Question

The sun has an apparent magnitude of - 26.5 calculate its absolute magnitude. Given distance of sun =0.48 * 10 ^-5

Answer 1

Explanation:

For this we recall from the table above that the Sun has an apparent magnitude of -26.5 and the full Moon, - 12.5.

So using equation 4.1 we get:

ISun/IMoon = 2.512mM - mS

substituting in gives us:

ISun/IMoon = 2.512-12.5 - (-26.5)

ISun/IMoon = 2.51214.0

ISun/IMoon = 398,359