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Loading contentEpsilon Geminorum
Mebsuta is a main-sequence star in the constellation Gemini (Geminorum), lying about 845 light-years from Earth.
Class A. White stars with strong hydrogen lines. Many of the brightest stars in the sky are class A. Such stars have surface temperatures around 7,500–10,000 K and appear white to the eye.
| Spectral type | A3mA6-A9 |
| Apparent magnitude | 3.06 |
| Absolute magnitude | -4.01 |
| Luminosity (Sun = 1) | 3,490 |
| Colour index (B−V) | 1.377 |
| Distance | 845 ly (259.07 pc) |
Values are real catalogue data; fields without a reliable value are omitted, never estimated.
A main-sequence star fuses hydrogen into helium in its core. It will remain on the main sequence for most of its life before evolving into a giant.
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.