HD 220466
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| Observation data Epoch J2000.0 Equinox J2000.0 (ICRS) | |
|---|---|
| Constellation | Aquarius |
| Right ascension | 23h 24m 03.9805s[1] |
| Declination | −21° 46′ 27.881″[1] |
| Apparent magnitude (V) | 6.467[1] |
| Characteristics | |
| Spectral type | F3IV/V[1] |
| B−V color index | 0.4[1] |
| Astrometry | |
| Radial velocity (Rv) | 24.5[1] km/s |
| Proper motion (μ) | RA: −66.12[1] mas/yr Dec.: −77.43[1] mas/yr |
| Parallax (π) | 15.99 ± 0.85[1] mas |
| Distance | 200 ± 10 ly (63 ± 3 pc) |
| Absolute magnitude (MV) | 2.7[2] |
| Details | |
| Mass | 1.47 (1.41 to 1.52)[3] M☉ |
| Temperature | 6460[3] K |
| Metallicity | [Fe/H] = −0.18[3] |
| Age | (2.0 ± 0.1) × 109 [3] years |
| Other designations | |
| Database references | |
| SIMBAD | data |
HD 220466 is a F-type subgiant or main sequence star in the constellation Aquarius. It has apparent magnitude 6.47 and is about 200 light-years away.[1] In 1913, an apparent visual companion of apparent magnitude 10.3 was observed 1.9 arcseconds away from the star,[4] but it is doubtful whether it actually exists.[5]
References
- ↑ 1.0 1.1 1.2 1.3 1.4 1.5 1.6 1.7 1.8 1.9 1.10 HD 220466, database entry, SIMBAD. Accessed on line July 22, 2008.
- ↑ From parallax and apparent magnitude.
- ↑ 3.0 3.1 3.2 3.3 HD 220466, database entry, The Geneva-Copenhagen Survey of Solar neighbourhood, J. Holmberg et al., 2007, CDS ID V/117A. Accessed on line November 19, 2008.
- ↑ CCDM 23241-2146, database entry, Catalog of Components of Double and Multiple Stars, CDS ID I/211. Accessed on line July 22, 2008.
- ↑ 23241-2146, entry, Notes file, Washington Double Star Catalogue. Accessed on line July 22, 2008.
External links
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