BX Boötis
| Observation data Epoch J2000 Equinox J2000 | |
|---|---|
| Constellation | Boötes |
| Right ascension | 15h 00m 38.7182s |
| Declination | +47° 16′ 38.793″ |
| Apparent magnitude (V) | 6.348 |
| Characteristics | |
| Spectral type | B9pSiSrCr[1] |
| U−B color index | -0.27 |
| B−V color index | -0.14 |
| Variable type | Alpha² Canum Venaticorum variable |
| Astrometry | |
| Radial velocity (Rv) | -10.70 km/s |
| Proper motion (μ) | RA: -8.42 mas/yr Dec.: 16.00 mas/yr |
| Parallax (π) | 5.89 ± 0.28 mas |
| Distance | 550 ± 30 ly (170 ± 8 pc) |
| Absolute magnitude (MV) | 0.20 |
| Other designations | |
| Database references | |
| SIMBAD | data |
| Data sources: | |
| Hipparcos Catalogue, CCDM (2002), Bright Star Catalogue (5th rev. ed.) | |
| Database references | |
| SIMBAD | data |
BX Boötis is a Alpha² Canum Venaticorum variable star in the constellation Boötes. It varies from magnitude 6.33 to 6.41 over 2.9 days.[1]
References
- 1 2 Watson, Christopher (4 January 2010). "BX Boötis". AAVSO Website. American Association of Variable Star Observers. Retrieved 5 August 2014.
This article is issued from
Wikipedia.
The text is licensed under Creative Commons - Attribution - Sharealike.
Additional terms may apply for the media files.