Yellow-white main-sequence star · Lyra
ε¹ Lyrae
Also known as: ε¹ Lyr, HIP 91919
mag 4.7160 light-years
About
ε¹ Lyrae is a yellow-white main-sequence star of magnitude 4.7 in Lyra, about 160 light-years away.
How to find it
- ε¹ Lyrae is in the constellation Lyra.
- Best evenings: around mid-August it is highest at about 9 pm (10 pm in summer time); a month earlier, two hours later.
- Where on Earth: it is seen well, at least 10° up, from north of 40° S.
- Summer Triangle: Next to Vega: a pair in binoculars, and each star splits again in a telescope at 150×.
When it rises and sets tonight, how high it climbs and how much the Moon gets in the way are worked out in your browser for your place.
What you will see
- EyesNeeds a dark sky away from city lights.
- Binoculars (10×50)A sharp point; binoculars bring out its colour and the fainter stars around it.
- Telescope (6–8 inch)Still a point of light at any magnification — stars are too far away to show a disc. Low in the sky, bright stars twinkle and flash colours.
Stars look the same in any instrument: brighter and sharper, but never bigger.
Facts
| Designation | ε¹ Lyrae (ε¹ Lyr) |
|---|---|
| Hipparcos number | HIP 91919 |
| Type | Yellow-white main-sequence star |
| Spectral type | F1V |
| Colour | Yellowish whiteB−V colour index 0.17 |
| Magnitude | 4.7The smaller the number, the brighter. |
| Distance | 160 light-yearsThe light you see left it around 1860. |
| Proper motion | 0.061″ per year across the sky |
| Constellation | Lyra |
| Right ascension (J2000) | 18h 44m 20.4s |
| Declination (J2000) | +39° 40′ 12″ |
Sources and credits
Star data: HYG Database by David Nash, CC BY-SA 4.0. All data sources →