Stellar Classifications 0.0 / 5 ? PhysicsAstrophysicsA2/A-levelAQA Created by: ashjackCreated on: 19-04-18 10:28 O - Colour Blue 1 of 20 B - Colour Blue 2 of 20 A - Colour Blue-White 3 of 20 F - Colour White 4 of 20 G - Colour Yellow-White 5 of 20 K - Colour Orange 6 of 20 M - Colour Red 7 of 20 O - Temperature 25,000-50,000K 8 of 20 B - Temperature 11,000-25,000K 9 of 20 A - Temperature 7,500-11,000K 10 of 20 F - Temperature 6,000-7,500K 11 of 20 G - Temperature 5,000-6,000K 12 of 20 K - Temperature 3,500-5,000K 13 of 20 O - Absorption Lines He⁺, He, Weak H 14 of 20 B - Absorption Lines He, H 15 of 20 A - Absorption Lines H, Weak Metal Ion 16 of 20 F - Absorption Lines Metal Ion 17 of 20 G - Absorption Lines Metal Ion, Metal Atom 18 of 20 K - Absorption Lines Metal Atom 19 of 20 M - Absorption Lines Metal Atoms, Compounds 20 of 20
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