HD 211392
HD 211392 is a suspected[5] variable star in the equatorial constellation of Aquarius, positioned about 370 light-years away.[1] With an apparent magnitude close to six, according to the Bortle scale it is just visible to the naked eye from dark, rural skies. It is a giant star with a stellar classification of K3III.[2]
| Observation data Epoch J2000 Equinox J2000 | |
|---|---|
| Constellation | Aquarius |
| Right ascension | 22h 16m 52.56602s[1] |
| Declination | −09° 02′ 24.2432″[1] |
| Apparent magnitude (V) | 5.96[2] |
| Characteristics | |
| Spectral type | K3III[2] |
| U−B color index | +1.14[3] |
| B−V color index | +1.16[3] |
| Astrometry | |
| Radial velocity (Rv) | 12.1[4] km/s |
| Proper motion (μ) | RA: -57.80[1] mas/yr Dec.: -12.41[1] mas/yr |
| Parallax (π) | 8.83 ± 0.43[1] mas |
| Distance | 370 ± 20 ly (113 ± 6 pc) |
| Other designations | |
| Database references | |
| SIMBAD | data |
| Data sources: | |
| Hipparcos Catalogue, CCDM (2002), Bright Star Catalogue (5th rev. ed.) | |
References
- van Leeuwen, F. (2007), "Validation of the new Hipparcos reduction", Astronomy and Astrophysics, 474 (2): 653–664, arXiv:0708.1752, Bibcode:2007A&A...474..653V, doi:10.1051/0004-6361:20078357
- Eggleton, P. P.; Tokovinin, A. A. (September 2008), "A catalogue of multiplicity among bright stellar systems", Monthly Notices of the Royal Astronomical Society, 389 (2): 869–879, arXiv:0806.2878, Bibcode:2008MNRAS.389..869E, doi:10.1111/j.1365-2966.2008.13596.x
- Johnson, H. L.; et al. (1966), "UBVRIJKL photometry of the bright stars", Communications of the Lunar and Planetary Laboratory, 4 (99), Bibcode:1966CoLPL...4...99J
- Wilson, R. E. (1953), General Catalogue of Stellar Radial Velocities, Carnegie Institute of Washington D.C., Bibcode:1953GCRV..C......0W
- Kukarkin, B. V.; et al. (1981), "Nachrichtenblatt der Vereinigung der Sternfreunde e.V. (Catalogue of suspected variable stars)", Nachrichtenblatt der Vereinigung der Sternfreunde e.V. (1981), Moscow: Academy of Sciences USSR Shternberg, Bibcode:1981NVS...C......0K
External links
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