Orange giant · Triangulum Australe
ε Trianguli Australis
Also known as: ε TrA, HIP 76440
mag 4.1200 light-years
About
ε Trianguli Australis is an orange giant of magnitude 4.1 in Triangulum Australe, about 200 light-years away.
How to find it
- ε Trianguli Australis is in the constellation Triangulum Australe.
- Best evenings: around early July 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 14° 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 | ε Trianguli Australis (ε TrA) |
|---|---|
| Hipparcos number | HIP 76440 |
| Type | Orange giant |
| Spectral type | K0III |
| Colour | Pale orangeB−V colour index 1.16 |
| Magnitude | 4.1The smaller the number, the brighter. |
| Distance | 200 light-yearsThe light you see left it around 1820. |
| Proper motion | 0.060″ per year across the sky |
| Constellation | Triangulum Australe |
| Right ascension (J2000) | 15h 36m 43.2s |
| Declination (J2000) | −66° 19′ 01″ |
Sources and credits
Star data: HYG Database by David Nash, CC BY-SA 4.0. All data sources →