82 Aquarii
| Observation data Epoch J2000 Equinox J2000 | |
|---|---|
| Constellation | Aquarius |
| Right ascension | 23h 02m 32.55735s[1] |
| Declination | –06° 34′ 26.4404″[1] |
| Apparent magnitude (V) | 6.15[2] |
| Characteristics | |
| Spectral type | M2 III[3] |
| U−B color index | +1.90[2] |
| B−V color index | +1.58[2] |
| Astrometry | |
| Radial velocity (Rv) | –8[4] km/s |
| Proper motion (μ) | RA: –5.75[1] mas/yr Dec.: –34.02[1] mas/yr |
| Parallax (π) | 2.24 ± 0.62[1] mas |
| Distance | approx. 1,500 ly (approx. 400 pc) |
| Other designations | |
82 Aquarii (abbreviated 82 Aqr) is a star in the equatorial constellation of Aquarius. 82 Aquarii is its Flamsteed designation. It has an apparent visual magnitude of 6.15,[2] which, according to the Bortle Dark-Sky Scale, means it is a faint star that requires dark rural skies to view. The annual parallax shift of 82 Aquarii is 2.24 ± 0.62 milliarcseconds, which equates to a distance of roughly 1,500 light-years (460 parsecs) from Earth.[1] This is a red giant star with a stellar classification of M2 III.[3]
References
- 1 2 3 4 5 6 van Leeuwen, F. (November 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. - 1 2 3 4 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.
- 1 2 Kimeswenger, S.; et al. (January 2004), "J - K DENIS photometry of a VLTI-selected sample of bright southern stars", Astronomy and Astrophysics, 413: 1037–1043, Bibcode:2004A&A...413.1037K, doi:10.1051/0004-6361:20031576.
- ↑ Wilson, R. E. (1953), General Catalogue of Stellar Radial Velocities, Carnegie Institute of Washington, D.C., Bibcode:1953GCRV..C......0W.
- ↑ "82 Aqr -- Variable Star", SIMBAD Astronomical Database, Centre de Données astronomiques de Strasbourg, retrieved 2012-07-16.
External links
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