Orange main-sequence star · Eridanus
Keid
Also known as: ο² Eridani (ο² Eri), HIP 19849
mag 4.416 light-years
About
Keid (ο² Eridani) is an orange main-sequence star of magnitude 4.4 in Eridanus, about 16 light-years away.
How to find it
- Keid is in the constellation Eridanus.
- Best evenings: around early January 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 south of 72° N.
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
- EyesVisible from the suburbs on a clear night, but lost in bright city skies.
- 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
| Proper name | Keid |
|---|---|
| Designation | ο² Eridani (ο² Eri) |
| Hipparcos number | HIP 19849 |
| Type | Orange main-sequence star |
| Spectral type | K1V |
| Colour | YellowB−V colour index 0.82 |
| Magnitude | 4.4The smaller the number, the brighter. |
| Distance | 16 light-yearsThe light you see left it around 2010. |
| Proper motion | 4.09″ per year across the sky |
| Constellation | Eridanus |
| Right ascension (J2000) | 04h 15m 16.3s |
| Declination (J2000) | −07° 39′ 10″ |
More in Eridanus
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NGC 1269Snow Collar GalaxyGalaxy · mag 8.7
NGC 1535Cleopatra's Eye NebulaPlanetary nebula · mag 9.6
NGC 1407Eridanus A GroupGalaxy · mag 9.7
NGC 1232Eye of God GalaxyGalaxy · mag 10.1
NGC 1909the Witch Head NebulaReflection nebulaSources and credits
Star data: HYG Database by David Nash, CC BY-SA 4.0. All data sources →