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Loading content58 Pegasi is a blue giant in the constellation Pegasus (Pegasi), lying about 809.3 light-years from Earth.
Class B. Hot, blue-white stars. Massive and luminous, they often light up the regions where they form. Such stars have surface temperatures around 10,000–30,000 K and appear blue-white to the eye.
| Spectral type | B9III |
| Luminosity class | III |
| Apparent magnitude | 5.39 |
| Absolute magnitude | -1.58 |
| Luminosity (Sun = 1) | 374 |
| Colour index (B−V) | -0.068 |
| Distance | 809.3 ly (248.14 pc) |
Values are real catalogue data; fields without a reliable value are omitted, never estimated.
A blue giant is a hot, massive, highly luminous star that has evolved off the main sequence. Such stars are short-lived on cosmic timescales.
Facts on this topic will be cited from these primary and reference sources.
Aggregated, openly-licensed star catalogue combining Hipparcos, the Yale Bright Star Catalogue, and the Gliese Catalogue of Nearby Stars.
High-precision parallax, magnitude, and position for ~118,000 stars.