Yellow-white giant · Chamaeleon
α Chamaeleontis
Also known as: α Cha, HIP 40702
mag 4.164 light-years
About
α Chamaeleontis is a yellow-white giant of magnitude 4.1 in Chamaeleon, about 64 light-years away.
How to find it
- α Chamaeleontis is in the constellation Chamaeleon.
- Best evenings: around mid-March 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 3° 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
| Designation | α Chamaeleontis (α Cha) |
|---|---|
| Hipparcos number | HIP 40702 |
| Type | Yellow-white giant |
| Spectral type | F5III |
| Colour | Yellowish whiteB−V colour index 0.41 |
| Magnitude | 4.1The smaller the number, the brighter. |
| Distance | 64 light-yearsThe light you see left it around 1962. |
| Proper motion | 0.15″ per year across the sky |
| Constellation | Chamaeleon |
| Right ascension (J2000) | 08h 18m 31.3s |
| Declination (J2000) | −76° 55′ 11″ |
Sources and credits
Star data: HYG Database by David Nash, CC BY-SA 4.0. All data sources →