HD 223311
| Observation data Epoch J2000 Equinox J2000 | |
|---|---|
| Constellation | Aquarius |
| Right ascension | 23h 48m 32.47943s[1] |
| Declination | −06° 22′ 49.5231″[1] |
| Apparent magnitude (V) | 6.08[2] |
| Characteristics | |
| Spectral type | K4III[3] |
| U−B color index | +1.71[2] |
| B−V color index | +1.452[3] |
| Astrometry | |
| Radial velocity (Rv) | −20.069±0.008[3] km/s |
| Proper motion (μ) | RA: +0.01[1] mas/yr Dec.: −19.04[1] mas/yr |
| Parallax (π) | 4.10 ± 0.55[1] mas |
| Distance | approx. 800 ly (approx. 240 pc) |
| Details | |
| Metallicity [Fe/H] | −0.22±0.09[4] dex |
| Other designations | |
| Database references | |
| SIMBAD | data |
HD 223311 is a suspected variable star in the equatorial constellation of Aquarius.
References
- 1 2 3 4 5 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
- 1 2 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 3 Soubiran, C.; et al. (April 2013), "The catalogue of radial velocity standard stars for Gaia. I. Pre-launch release", Astronomy & Astrophysics 552: 11, arXiv:1302.1905, Bibcode:2013A&A...552A..64S, doi:10.1051/0004-6361/201220927, A64
- ↑ Taylor, B. J. (February 1999), "Catalogs of temperatures and [Fe/H] averages for evolved G and K stars", Astronomy and Astrophysics Supplement 134: 523–524, Bibcode:1999A&AS..134..523T, doi:10.1051/aas:1999153
External links
| ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
This article is issued from Wikipedia - version of the Thursday, April 21, 2016. The text is available under the Creative Commons Attribution/Share Alike but additional terms may apply for the media files.