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Name: ____________________________ Astronomy Period: __________________ Categorizing the Stars Using the different properties of stars, we can classify them into categories called Spectral Type. These are symbolized by letters O, B, A, F, G, K, and M. Use the data provided below to classify the stars. Star Name Luminosity Surface Temp. (K) Sun 1 5,750 Betelgeuse 16,000 Polaris 5,500 5,400 B. Centauri 1,700 25,000 Antares Spica 760 160 A Centauri 2 Procyon Vega Orange-Red White-Yellow 10 Blue-White Blue 10,600 50 Red 13,600 6,600 Sirius White-Yellow Blue 3,600 Regulus Altair Red 3,200 Aldebaran Color Blue 11,300 Pollux 4,865 White Wezen 6,390 White-Yellow Rigel 73 Izar 27 11,000 Blue-White Spectral Type
