Atria (Alpha Trianguli Australis)
Photo: ESO Online Digitized Sky Survey.
Atria (Alpha Trianguli Australis) is a giant K star and the brightest star in the constellation Triangulum Australe. There are indications of strong flare activity on its surface, and a small and faint binary companion has recently been detected.
| visual magnitude | 1.91 |
| absolute magnitude | -3.62 |
| spectral type | K2IIb-IIIa |
| luminosity | 2,000 Lsun |
| distance | 420 light-years (130 pc) |
| position | RA 16h 48m 39.9s, Dec -69° 1' 40" |
| other designations | HR 6217, CD -68°2822, HD 150798, SAO 253700, FK5 625, GC 22558, HIP 82273 |
