Star profile
15 Triangulum
Cool red starWhat is 15 Triangulum
15 Trianguli is a cool red M-type star set against the small figure of the Triangle, that geometric wedge north of Aries. Its atmosphere, far cooler than the Sun's, soaks its light in a deep red; from some 632 light-years it reaches magnitude 5.38 only thanks to the vast size of an advanced giant. The light arriving tonight began its journey around 1394, still a century before the great oceanic voyages.
Where it is and when to see it
15 Triangulum lies in the northern celestial hemisphere. It is visible to the naked eye under a dark sky. Its best month of the year is November: the Sun sits at the opposite point of the sky and the star culminates around midnight. How high it climbs above the horizon depends on the latitude you watch from.
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The signature wall
Stelvia's sky works like a signature wall: anyone can leave their name and a message on a real star, and that signature goes up on the map for everyone to read. Signing is free.
A signature without a lock can be replaced by someone else's. The lock makes the signature permanent and lets you choose a symbolic name for the star, always shown next to the star's catalogue identifier. How the lock works
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A public signature from a real person. The chosen name is a symbolic denomination within Stelvia, with no official standing or IAU recognition: the sky is not for sale and belongs to no one.
Astronomical data for 15 Triangulum
- Constellation
- Triangulum
- Apparent magnitude
- 5.38
- Distance
- 632.2 light years
- Coordinates (J2000)
- RA 38.945° · Dec 34.688°
- Catalogue
- HIP 12086 · HD 16058
A symbolic commemorative gift: neither the signature nor the chosen name implies ownership of the star or recognition by the IAU.
Other stars in Triangulum
Triangulum has 18 stars in Stelvia's catalogue. Here are a few of them.
- Beta Triangulum3.00
- MothallahAlpha Triangulum3.42
- Gamma Triangulum4.03
- 7 Triangulum5.25
- 10 Triangulum5.29
- 12 Triangulum5.29
- Epsilon Triangulum5.50
- 11 Triangulum5.55