January 2011 Mock: Question 16

i) The letters signify the order of brightness of the stars in the cluster or constellation.


ii) 2.5


iii) The third star down. (d)


iv) -3.8


v) Alpha


1.)The letters are the brightness of stars in order so A alpha is the brightes B beta is second etc

2.) 6.25 because it is a difference of 2 mags

3.)-3.8

4.) DELTA



AKASH PATEL