 #1
ChrisWM
 13
 1
 Homework Statement:

We make two observations of the same star on different nights. In the first observation, the integrated flux value is 11,347 counts and in the second observation the integrated flux is 10,606 counts. Assume that the background level(dark & bias)is 100 counts for each observation. Also assume one count per photon(i.e. QE=100% and gain = 1).
a. Compute the difference in the star’s brightness and the uncertainty in that difference.
 Relevant Equations:
 M=2.5log(f1/f2) SE=𝜎/sqrt(2n2)
I have found the difference in the magnitude from the counts to be .073 using 2.5log(11347/10606) but I m unsure if this is right or how to calculate the uncertainty