PROPUS
ID: n Gem (Eta Geminorum), Gemini
Color: Red
Temperature (°K): 3,100
Class: M3, Giant
Distance From Earth (LY): 190
Diameter: 34 solar diameters

WASAT
ID: Gem (Delta Geminorum), Gemini
Color: White
Temperature (°K): 7,000
Class: F2, Subgiant
Distance From Earth (LY): 53
Diameter: 2 solar diameters

POLLUX
ID: ß Gem (Beta Geminorum), Gemini
Color: Orange
Temperature (°K): 4,900
Class: K0, Giant
Distance From Earth (LY): 35
Diameter: 9 solar diameters

CASTOR
ID: a Gem (Alpha Geminorum), Gemini
Color: Blue-white
Temperature (°K): 9,300
Class: A1, Main sequence
Distance From Earth (LY): 47
Diameter: 2 solar diameters