Astronomy:HD 211392
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Short description: Suspected variable star in the constellation Aquarius
| Observation data Equinox J2000.0]] (ICRS) | |
|---|---|
| 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.) | |
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]
References
- ↑ 1.0 1.1 1.2 1.3 1.4 1.5 van Leeuwen, F. (2007), "Validation of the new Hipparcos reduction", Astronomy and Astrophysics 474 (2): 653–664, doi:10.1051/0004-6361:20078357, Bibcode: 2007A&A...474..653V
- ↑ 2.0 2.1 2.2 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, doi:10.1111/j.1365-2966.2008.13596.x, Bibcode: 2008MNRAS.389..869E
- ↑ 3.0 3.1 Johnson, H. L. et al. (1966), "UBVRIJKL photometry of the bright stars", Communications of the Lunar and Planetary Laboratory 4 (99): 99, Bibcode: 1966CoLPL...4...99J
- ↑ Wilson, R. E. (1953), "General Catalogue of Stellar Radial Velocities", Carnegie Institute Washington D.C. Publication (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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