The spectral type of Pollux is KOlllvar. (The “var" indicates that this is a variable star of known type. The “III" indicates that the star is a giant star.) The spectral types of other stars you've viewed are as follows: HIP 87937: M4 HIP 108870: K5 Tau Cet: G8 Regulus: B7 Each spectral type is divided into 10 subclasses. The subclass is indicated by the numeral following the type. Therefore, a sequence of types and subclasses would be BO, B1, B3, ... B9, AO, A1, . . . etc. Which star observed so far has a spectral type closest to Pollux? Regulus HIP 87937 HIP 108870 Tau Cet

The spectral type of Pollux is KOlllvar. (The “var" indicates that this is a variable star of known type. The “III" indicates that the star is a giant star.) The spectral types of other stars you've viewed are as follows: HIP 87937: M4 HIP 108870: K5 Tau Cet: G8 Regulus: B7 Each spectral type is divided into 10 subclasses. The subclass is indicated by the numeral following the type. Therefore, a sequence of types and subclasses would be BO, B1, B3, ... B9, AO, A1, . . . etc. Which star observed so far has a spectral type closest to Pollux? Regulus HIP 87937 HIP 108870 Tau Cet