# Graphing an HR diagram

• On the graph attached, plot every one of the nearest stars using an
• On the same graph, plot every one of the brightest stars as seen from Earth using a
• If the stars appear on both lists, just circle the star
to represent both symbols
• Compare your graph with the H-R diagram at the top of this assignment. Label each type of star on your graph. (example: label the white dwarf section, the main sequence section, etc.)

Our Sun has a temperature of 5800 K (which is 6073Celsius) and an absolute magnitude of +4.7. Use a
symbol to plot the location of the Sun on your diagram. Use the two tables to plot the points on the graph attached as a PDF

 Table 2: Brightest Stars as seen from Earth Name Distance (pc) Temperature (K) Absolute Magnitude Sirius 2.7 10400 4.4 Canopus 30 7400 -3.1 Alpha Centauri 1.3 5800 4.4 Arcturus 11 4500 -0.3 Vega 8 10700 0.5 Capella 14 5900 -0.7 Rigel 250 11800 -6.8 Procyon 3.5 6800 2.7 Betelgeuse 150 3200 -5.5 Achernar 20 14000 -1 Beta Centauri 90 2100 -4.1 Altair 5.1 8000 2.2 Alpha Crucis 120 21000 -4.1 Aldebaran 16 4200 -0.2 Spica 80 21000 -3.6 Antares 120 3400 -4.5 Pollux 12 4900 0.8 Fomalhaut 7 9500 2 Deneb 430 9900 -6.9 Beta Crucis 150 22000 -2.6
 Table 1: Nearest Stars Name Distance (pc) Temperature (K) Absolute Magnitude Alpha Centauri 1.31 5800 4.4 Barnard’s Star 1.83 2800 13.2 Wolf 359 2.35 2700 16.8 Lalande 21185 2.49 3200 10.5 Sirius 2.67 10400 1.4 Luyten 726-8 2.67 2700 15.4 Ross154 2.94 2800 13.3 Ross 248 3.16 2700 14.6 Epsilon Eridani 3.3 4500 6.1 Ross 128 3.37 2800 13.5 Luyten 789-6 3.37 2700 14.9 61 Cygni 3.4 2800 7.5 Procyon 3.47 6800 2.7 Epsilon Indi 3.51 4200 7 Sigma 2398 3.6 3000 11.1 BD + 43.44 3.6 3200 10.3 Tau Ceti 3.64 5200 5.7 CD-36.15693 3.66 3100 9.6 BD+5.1668 3.76 3000 11.9 CD -39.14192 3.92 3500 8.7