Capella
13Alp Aur
Capella is a M-type (Red) star. It carries the designation 13Alp Aur.
Capella lies approximately 42.8 light-years from Earth, placing it within the Sun's local stellar neighborhood. This relatively short cosmic distance means the light reaching us today departed the star only about 42 years ago.
Capella is classified as a spectral class M star (M-type (Red)) on the Harvard spectral classification system.
Capella has an apparent magnitude of +0.08, making it a bright and prominent star that is readily visible to the naked eye. It is one of the more conspicuous stars in its region of the sky. Observers will note its yellow-white hue, which corresponds to a B-V color index of +0.795.
Physical Properties
| Spectral Class | Class M — M-type (Red) |
| Color Index (B−V) | 0.795 |
Observation
| Apparent Magnitude | +0.08 |
| Absolute Magnitude | -0.51 |
| Distance | 42.8 ly |
Position
| Right Ascension | 5h 16.69m |
| Declination | 45° 59.88′ |
Related Chemistry
Explore the chemical elements connected to Capella on our sister site ChemFYI.
Both components are evolved G-type giants with hydrogen envelopes
Rich metallic spectrum characteristic of G-type giant stars
Ca II H & K chromospheric emission lines in this active binary
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