Cyrus Hart
New member
the answers need to be in scientific notation, im asking only because i missed all of last weeks class due to my grandmothers death and its due in about 45minutes
If a long-period Cepheid is 30,000 times brighter than the Sun, how far could you see that Cepheid brighter than 25th magnitude?
E) Is a SN Ia (at 10 Mpc distance) peaks at 12th magnitude, how far could it be seen brighter than 27th magnitude?
x 10
F) If a SN Ia is 10 billion times brighter than the Sun, how much brighter is it than a bright Cepheid variable?
x 10
* How much further could it be seen than a bright Cepheid?
x 10
If a long-period Cepheid is 30,000 times brighter than the Sun, how far could you see that Cepheid brighter than 25th magnitude?
E) Is a SN Ia (at 10 Mpc distance) peaks at 12th magnitude, how far could it be seen brighter than 27th magnitude?
x 10
F) If a SN Ia is 10 billion times brighter than the Sun, how much brighter is it than a bright Cepheid variable?
x 10
* How much further could it be seen than a bright Cepheid?
x 10