IU Aurigae
| 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 |
| Data sources: | |
| Hipparcos Catalogue, CCDM (2002), Bright Star Catalogue (5th rev. ed.) | |
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.
This article is issued from Wikipedia - version of the 7/12/2015. The text is available under the Creative Commons Attribution/Share Alike but additional terms may apply for the media files.