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Message * Articles On B-type Subgiants, including Spica, Alpha Crucis, Alpha Andromedae, Lambda Scorpii, Alpha Gruis, Gamma Velorum, Alpha Pavonis, Delta Scorpii, Nu Scorpii, Alpha Columbae, Upsilon Scorpii, Delta Crucis, Theta Sagittarii - 1243258810 - 9781243258816