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Loading contentHR 6997 is a blue giant in the constellation Lyra (Lyrae), lying about 504.1 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 | B8II-IIIp.. |
| Luminosity class | III |
| Apparent magnitude | 5.41 |
| Absolute magnitude | -0.53 |
| Luminosity (Sun = 1) | 143 |
| Colour index (B−V) | -0.101 |
| Distance | 504.1 ly (154.56 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.