4.67
Apparent Mag162
Distance (ly)A8V
Spectral Type7,750
Temperature (K)Epsilon Lyrae is the famous Double-Double star near Vega. Each component is itself a binary, making it a quadruple system.
Stellar Data
Apparent Magnitude4.67
Absolute Magnitude1.1
Distance162 light-years
Spectral TypeA8V
Temperature7,750 K
Luminosity30 L☉
Radius2 R☉
Mass1.9 M☉
Right Ascension18h 44m 20.4s
Declination+39° 40′ 12.1″
ConstellationLyra
Notable Facts
- Epsilon Lyrae is known as the Double-Double
- Each visible component is itself a close binary
- It is a popular test of telescope optics