Star profile
55 Pegasi
Cool red starWhat is 55 Pegasi
55 Pegasi is an aged red giant on the asymptotic branch, swollen to forty-six times the Sun's radius. It glows with a muted reddish hue 329 light-years off, radiating nearly five hundred times the solar light despite a surface barely above 4,000 K. The light arriving tonight set out when Spain was still entering democracy, and it burns with the terminal calm of a star that has spent all its hydrogen.
Where it is and when to see it
55 Pegasi lies in the northern celestial hemisphere. It is visible to the naked eye under a dark sky. Its best month of the year is September: 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 55 Pegasi
- Constellation
- Pegasus
- Apparent magnitude
- 4.54
- Distance
- 328.8 light years
- Coordinates (J2000)
- RA 346.751° · Dec 9.409°
- Catalogue
- HIP 114144 · HD 218329
A symbolic commemorative gift: neither the signature nor the chosen name implies ownership of the star or recognition by the IAU.
Other stars in Pegasus
Pegasus has 98 stars in Stelvia's catalogue. Here are a few of them.
- EnifEpsilon Pegasi2.38
- ScheatBeta Pegasi2.44
- MarkabAlpha Pegasi2.49
- 9 Pegasi4.34
- AlkarabUpsilon Pegasi4.42
- 2 Pegasi4.52
- 70 Pegasi4.54
- SalmTau Pegasi4.58