USING THE GRAPH ABOVE PLEASE DO THE FOLLOWING:

A) Plot the 24 brightest Pleiades stars on the H-R diagram

B) Identify the different parts of the H-R diagram: main sequence, red giants, horizontal branch, supergiants, white dwarfs.

C) The solid line already plotted on your Pleiades H-R Diagram represents the location of the main sequence. . Determine from your own results which of the Pleiades stars no longer appear to be main sequence stars and explain

Star Spectral Type A B D E F G Luminosity (in Solar Luminosities) 1940 1150 1940 1340 929 738 160 138 105 52.4 35.6 25.6 19.0 14.2 B7 B6 B8 B6 B6 B8 B9 B9 B9 A1 A5 A3 A6 A5 H J K L M N P Q R S T U 9.2 6.98 4.78 3.43 3.05 2.11 F1 A9 F2 F3 F6 F6 V W X Y Z 1.43 1.18 0.87 0.67 F8 G2 G6 G6 10000 1000 100 10 1 0.1 05 5 AD AS FO F5 GO G5 K5 MO Star Spectral Type A B D E F G Luminosity (in Solar Luminosities) 1940 1150 1940 1340 929 738 160 138 105 52.4 35.6 25.6 19.0 14.2 B7 B6 B8 B6 B6 B8 B9 B9 B9 A1 A5 A3 A6 A5 H J K L M N P Q R S T U 9.2 6.98 4.78 3.43 3.05 2.11 F1 A9 F2 F3 F6 F6 V W X Y Z 1.43 1.18 0.87 0.67 F8 G2 G6 G6 10000 1000 100 10 1 0.1 05 5 AD AS FO F5 GO G5 K5 MO