Loading…
Loading content
Loading…
Loading contentOmega Orionis is a blue giant in the constellation Orion (Orionis), lying about 1,382 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 | B3IIIe |
| Luminosity class | III |
| Apparent magnitude | 4.5 |
| Absolute magnitude | -3.63 |
| Luminosity (Sun = 1) | 2,477 |
| Colour index (B−V) | -0.098 |
| Distance | 1,382 ly (423.73 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.