Yellow-white giant · Equuleus
ε Equulei
Also known as: ε Equ, HIP 103569
mag 5.3180 light-years
About
ε Equulei is a yellow-white giant of magnitude 5.3 in Equuleus, about 180 light-years away.
How to find it
- ε Equulei is in the constellation Equuleus.
- Best evenings: around mid-September 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 76° S.
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 | ε Equulei (ε Equ) |
|---|---|
| Hipparcos number | HIP 103569 |
| Type | Yellow-white giant |
| Spectral type | F5III |
| Colour | YellowB−V colour index 0.46 |
| Magnitude | 5.3The smaller the number, the brighter. |
| Distance | 180 light-yearsThe light you see left it around 1850. |
| Proper motion | 0.19″ per year across the sky |
| Constellation | Equuleus |
| Right ascension (J2000) | 20h 59m 04.5s |
| Declination (J2000) | +04° 17′ 37″ |
Sources and credits
Star data: HYG Database by David Nash, CC BY-SA 4.0. All data sources →