IU Aurigae
 | This article relies largely or entirely on a single source. (March 2017) |
| Observation data Epoch J2000 Equinox J2000 | |
|---|---|
| Constellation | Auriga |
| Right ascension | 05h 27m 52.4005s |
| Declination | +34° 46′ 58.25″ |
| Apparent magnitude (V) | 8.19 - 8.83 |
| Characteristics | |
| Spectral type | B3Vnne |
| U−B color index | -0.66 |
| B−V color index | 0.18 |
| Astrometry | |
| Radial velocity (Rv) | 9 ± 5 km/s |
| Proper motion (μ) | RA: 1.16 ± 1.57 mas/yr Dec.: -0.35 ± 0.71 mas/yr |
| Parallax (π) | 4.55 ± 1.32 mas |
| Distance | approx. 700 ly (approx. 220 pc) |
| Details | |
| Other designations | |
| Database references | |
| SIMBAD | data |
IU Aurigae is an eclipsing binary star system of the Beta Lyrae type in the constellation Auriga. It is composed of two blue-white stars of spectral class B that orbit each other every 1.8 days, the apparent magnitude varying between 8.19 and 8.83.[1]
References
- ^ Watson, Christopher (4 January 2010). "IU Aurigae". The International Variable Star Index. American Association of Variable Star Observers. Retrieved 13 July 2015.
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