Chi Aurigae
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| Observation data Epoch J2000 Equinox J2000 |
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|---|---|
| Constellation | Auriga |
| Right ascension | 05h 32m 43.6729s |
| Declination | +32° 11′ 31.278″ |
| Apparent magnitude (V) | 4.744 |
| Characteristics | |
| Spectral type | B5Iab |
| U−B color index | -0.46 |
| B−V color index | 0.34 |
| R−I color index | 0.27 |
| Astrometry | |
| Radial velocity (Rv) | -0.2 km/s |
| Proper motion (μ) | RA: -1.81 mas/yr Dec.: -4.0 mas/yr |
| Parallax (π) | 0.8 ± 0.89 mas |
| Distance | approx. 4,000 ly (approx. 1,000 pc) |
| Absolute magnitude (MV) | 4.996 |
| Details | |
| Mass | 18 M☉ |
| Radius | 7 R☉ |
| Luminosity | 20,000 L☉ |
| Temperature | 10,000–30,000 K |
| Orbit | |
| Companion | Chi Aurigae B |
| Period (P) | 1,79373 yr |
| Other designations | |
| Database references | |
| SIMBAD | data |
| Data sources: | |
| Hipparcos Catalogue, CCDM (2002), Bright Star Catalogue (5th rev. ed.) |
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Chi Aurigae (χ Aur, χ Aurigae) is a binary star in the constellation Auriga. It is at least 2000 light-years from Earth.
Chi Aurigae is a spectroscopic binary which is classified as a blue-white B-type supergiant with an apparent magnitude of +4.71. The binary has an orbital period of 655.16 days.
[edit] References
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