supergiant · K2Ib
Atria
Atria is a orange supergiant (spectral type K2Ib) about 390 light-years away. With an apparent magnitude of 1.91 it is a very bright, conspicuous star.
The brightest star in Triangulum Australe. Its name is a contraction of "Alpha Trianguli Australis".
Its light output is roughly 2,100 times that of the Sun (a rough estimate in visible light, calculated from brightness and distance).
It is never visible from Germany, as it lies too far south.
Key facts
- Distance
- ≈ 390 light-years
- Spectral type
- K2Ib (supergiant)
- Colour
- Orange
- Apparent magnitude
- 1.91 mag
- Luminosity
- ≈ 2,100 × Sun
- Position
- Right ascension 16h 49m, declination -69°
More well-known stars
Data: Hipparcos / HYG catalogue (CC BY-SA 4.0). Luminosity and visibility are calculated estimates.