Yellow giant · Pisces
Alpherg
Also known as: η Piscium (η Psc), HIP 7097
mag 3.6350 light-years
About
Alpherg (η Piscium) is a yellow giant of magnitude 3.6 in Pisces, about 350 light-years away.
How to find it
- Alpherg is in the constellation Pisces.
- Best evenings: around late November 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 65° 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
- 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 | Alpherg |
|---|---|
| Designation | η Piscium (η Psc) |
| Hipparcos number | HIP 7097 |
| Type | Yellow giant |
| Spectral type | G8III |
| Colour | Pale orangeB−V colour index 0.97 |
| Magnitude | 3.6The smaller the number, the brighter. |
| Distance | 350 light-yearsThe light you see left it around 1680. |
| Proper motion | 0.026″ per year across the sky |
| Constellation | Pisces |
| Right ascension (J2000) | 01h 31m 29.0s |
| Declination (J2000) | +15° 20′ 45″ |
More in Pisces
M74Phantom GalaxyGalaxy · mag 9.2
NGC 488Whirligig GalaxyGalaxy · mag 10.3
NGC 507NGC 507 groupGalaxy · mag 11.6
NGC 128NGC 128 groupGalaxy · mag 11.6
NGC 383NGC 383 groupGalaxy · mag 12.1
NGC 375Pisces CloudGalaxy · mag 14.3Sources and credits
Star data: HYG Database by David Nash, CC BY-SA 4.0. All data sources →