Star profile
23 Pegasi
Hot blue starWhat is 23 Pegasi
23 Pegasi belongs to the great winged horse of Pegasus, whose quadrilateral dominates the autumn sky of the northern hemisphere. It is a blue B-type star 347 light-years away, with a surface that comfortably exceeds 10,000 K and an intrinsic glow far brighter than the Sun's. B stars are fleeting on cosmic timescales: they burn with luminous violence and cross the stage quickly, leaving behind some of the most intense spectacles in the universe.
Where it is and when to see it
23 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, when it culminates around midnight.
- From London it culminates about 67° above the horizon.
- From New York it culminates about 78° above the horizon.
- From Sydney it culminates about 27° above the horizon.
It can be seen from anywhere north of 61° S.
It ranks no. 70 in brightness among the 98 stars of Pegasus in our catalogue. To find it, start from Enif, the brightest: it lies about 20° away (a fist at arm's length covers about 10°).
The light you see today left it about 350 years ago.
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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 23 Pegasi
- Constellation
- Pegasus
- Apparent magnitude
- 5.69
- Distance
- 347.0 light years
- Coordinates (J2000)
- RA 331.394° · Dec 28.964°
- Catalogue
- HIP 109056 · HD 209833
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
- 4 Pegasi5.66
- HIP 1144495.68
- HIP 1080605.69
- HIP 1119745.72
- HIP 1092095.74