Epsilon Lyrae (Double Double) (Double Double)
Epsilon Lyrae (Double Double) (Double Double) is a double star in the constellation Lyra, magnitude 5.2.
The famous "Double Double" near Vega. ε¹'s components (magnitudes 5.2 and 6.1; spectral types A4 V (white) and F1 V (yellow-white)) lie 2.1″ apart at PA 342° (measured 2025). ε¹ and ε² are 209.4″ apart (easy in binoculars), and ε² splits into stars of magnitude 5.3 and 5.4, 2.4″ apart.
When and where to see it
It is best placed in the evening sky around August, when it crosses the meridian at about 10 pm local time (around midnight in July). It can be seen from everywhere north of 50°S and never sets north of 50°N.
At its highest it stands 80° up from 50°N, 85° up from 35°N, 50° up from the equator, 15° up from 35°S.
Facts
- Type
- Double star
- Constellation
- Lyra
- Designations
- Double Double, Epsilon Lyrae, ε Lyr, ε¹ Lyr, Epsilon¹ Lyrae, ε² Lyr, Epsilon² Lyrae, 4 Lyr, 4 Lyrae, 5 Lyr, 5 Lyrae, STF 2382, STFA 37, STF 2383, HIP 91919
- Magnitude
- 5.2
- Position
- RA 18h 44.3m, Dec +39° 40′ (J2000)
Open AstroPilot to see when Epsilon Lyrae (Double Double) (Double Double) is highest tonight from your location, how easy it is with your telescope or binoculars, and an eyepiece view.