HR 6902
 Visible, blue and ultraviolet light curves for an eclipse of V2291 Ophiuchi, adapted from Griffin et al. (1995)[1] | ||
| Observation data Epoch J2000 Equinox J2000 | ||
|---|---|---|
| Constellation | Ophiuchus | |
| Right ascension | 18h 25m 38.799s[2] | |
| Declination | +08° 01′ 55.23″[2] | |
| Apparent magnitude (V) | +5.64[3] | |
| Characteristics | ||
| Spectral type | G9IIb / B8V | |
| Variable type | Zeta Aurigae-type | |
| Absolute magnitude (MV) | –1.33[3] | |
| Details | ||
| Mass | 3.86/2.95[4] M☉ | |
| Radius | 33/3[4] R☉ | |
| Luminosity | 562/146 L☉ | |
| Temperature | 4900/11600[4] K | |
Inclination (i) 87[4]° | | |
SAO 123462 | ||
| Database references | ||
| SIMBAD | data | |
HR 6902 (also designated V2291 Oph) is a
eclipsing binary of Zeta Aurigae type. The system is also surrounded by a warm circumstellar envelope and the spectra show silicon and carbon absorption up to a distance of 3.3 giant radii.[4]
References
- Bibcode:1995A&A...301..217G. Retrieved 4 February 2022.
- ^ S2CID 18759600. Vizier catalog entry
- ^ Bibcode:1999A&A...342..831J
- ^ S2CID 12157488.
