No star has been selected yet.
You haven't picked a star yet
Back to the selector
Your star
Sig
Its story
Sigma Arae is a white main-sequence A0V star with 2.6 solar masses and 215 times the Sun's luminosity, 378 light-years away. What sets it apart is its unusually strong X-ray emission for its type, a rarity attributed to a low-mass companion not yet firmly identified. It glows in silence within the southern Altar, a small constellation tucked between Scorpius and the Southern Triangle.
- Constellation
- Ara
- Apparent magnitude
- 4.56
- Distance
- 378.4 light years
- Coordinates (J2000)
- RA 263.915° · Dec -46.506°
- Catalogue
- HIP 86092 · HD 159217
Take your star to the gift that suits you best.
Choose a tierSymbolic commemorative gift — no ownership, no IAU recognition.