ALTAIR
ID: a Aql (Alpha Aquilae) Aquila
Color: Pale yellow
Temperature (°K): 8,100
Class: A7, Main sequence
Distance From Earth (LY): 16.8
Diameter: 1.6 solar diameters

SUN
Color: Yellow
Temperature (°K): 5,800
Class: G2, Main sequence
Distance From Earth: 8.3 Light-minutes
Diameter: 1 solar diameter

DENEB
ID: a Cyg (Alpha Cygni) Cygnus
Color: Bluish-white
Temperature (°K): 10,000
Class: A2, Supergiant
Distance From Earth (LY): 3,200
Diameter: more than 100 solar diameters

VEGA
ID: a Lyr (Alpha Lyrae) Lyra
Color: Bluish
Temperature (°K): 10,000
Class: A0, Main sequence
Distance From Earth (LY): 25
Diameter: 2.6 solar diameters