| Observation data Epoch J2000.0 Equinox J2000.0 ( ICRS) | |
|---|---|
| Constellation | Aquarius |
| Right ascension | 23h 24m 03.97947s [1] |
| Declination | −21° 46′ 27.8819″ [1] |
| Apparent magnitude (V) | 6.50 [2] |
| Characteristics | |
| Spectral type | F3IV/V [3] |
| U−B color index | −0.03 [2] |
| B−V color index | +0.42 [2] |
| Astrometry | |
| Radial velocity (Rv) | 24.5 [4] km/s |
| Proper motion (μ) |
RA: −67.70
[1]
mas/
yr Dec.: −77.45 [1] mas/ yr |
| Parallax (π) | 15.99 ± 0.72 mas [1] |
| Distance | 204 ± 9
ly (63 ± 3 pc) |
| Absolute magnitude (MV) | 2.50 [5] |
| Details | |
| Mass | 1.47 (1.41 to 1.52) [6] M☉ |
| Temperature | 6,456 [5] K |
| Metallicity [Fe/H] | −0.18 [5] dex |
| Age | 2.0 [5] Gyr |
| 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, [7] but it is doubtful whether it exists. [8]
References
- ^ a b c d e f 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. S2CID 18759600.
- ^ a b c Mermilliod, J.-C. (1986), "Compilation of Eggen's UBV data, transformed to UBV (unpublished)", Catalogue of Eggen's UBV Data. SIMBAD, Bibcode: 1986EgUBV........0M
- ^ Houk, Nancy; Smith-Moore, M. (1978), Michigan catalogue of two-dimensional spectral types for the HD stars, vol. 4, Ann Arbor: Dept. of Astronomy, University of Michigan, Bibcode: 1988mcts.book.....H
- ^ Gontcharov, G. A. (November 2006). "Pulkovo Compilation of Radial Velocities for 35 495 Hipparcos stars in a common system". Astronomy Letters. 32 (11): 759–771. arXiv: 1606.08053. Bibcode: 2006AstL...32..759G. doi: 10.1134/S1063773706110065. S2CID 119231169.
- ^ a b c d Holmberg, J.; Nordström, B.; Andersen, J. (July 2009), "The Geneva-Copenhagen survey of the solar neighbourhood. III. Improved distances, ages, and kinematics", Astronomy and Astrophysics, 501 (3): 941–947, arXiv: 0811.3982, Bibcode: 2009A&A...501..941H, doi: 10.1051/0004-6361/200811191, S2CID 118577511
- ^ 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 Archived 2008-04-13 at the Wayback Machine, Washington Double Star Catalogue. Accessed on line July 22, 2008.
External links
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 | This subgiant-star-related article is a stub. You can help Wikipedia by expanding it. |
 | This main-sequence-star-related article is a stub. You can help Wikipedia by expanding it. |
| Observation data Epoch J2000.0 Equinox J2000.0 ( ICRS) | |
|---|---|
| Constellation | Aquarius |
| Right ascension | 23h 24m 03.97947s [1] |
| Declination | −21° 46′ 27.8819″ [1] |
| Apparent magnitude (V) | 6.50 [2] |
| Characteristics | |
| Spectral type | F3IV/V [3] |
| U−B color index | −0.03 [2] |
| B−V color index | +0.42 [2] |
| Astrometry | |
| Radial velocity (Rv) | 24.5 [4] km/s |
| Proper motion (μ) |
RA: −67.70
[1]
mas/
yr Dec.: −77.45 [1] mas/ yr |
| Parallax (π) | 15.99 ± 0.72 mas [1] |
| Distance | 204 ± 9
ly (63 ± 3 pc) |
| Absolute magnitude (MV) | 2.50 [5] |
| Details | |
| Mass | 1.47 (1.41 to 1.52) [6] M☉ |
| Temperature | 6,456 [5] K |
| Metallicity [Fe/H] | −0.18 [5] dex |
| Age | 2.0 [5] Gyr |
| 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, [7] but it is doubtful whether it exists. [8]
References
- ^ a b c d e f 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. S2CID 18759600.
- ^ a b c Mermilliod, J.-C. (1986), "Compilation of Eggen's UBV data, transformed to UBV (unpublished)", Catalogue of Eggen's UBV Data. SIMBAD, Bibcode: 1986EgUBV........0M
- ^ Houk, Nancy; Smith-Moore, M. (1978), Michigan catalogue of two-dimensional spectral types for the HD stars, vol. 4, Ann Arbor: Dept. of Astronomy, University of Michigan, Bibcode: 1988mcts.book.....H
- ^ Gontcharov, G. A. (November 2006). "Pulkovo Compilation of Radial Velocities for 35 495 Hipparcos stars in a common system". Astronomy Letters. 32 (11): 759–771. arXiv: 1606.08053. Bibcode: 2006AstL...32..759G. doi: 10.1134/S1063773706110065. S2CID 119231169.
- ^ a b c d Holmberg, J.; Nordström, B.; Andersen, J. (July 2009), "The Geneva-Copenhagen survey of the solar neighbourhood. III. Improved distances, ages, and kinematics", Astronomy and Astrophysics, 501 (3): 941–947, arXiv: 0811.3982, Bibcode: 2009A&A...501..941H, doi: 10.1051/0004-6361/200811191, S2CID 118577511
- ^ 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 Archived 2008-04-13 at the Wayback Machine, Washington Double Star Catalogue. Accessed on line July 22, 2008.
External links
| Stars |
| ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| |||||||||||||
| |||||||||||||
| |||||||||||||
| Galaxies |
| ||||||||||||
| |||||||||||||
| |||||||||||||
|
| This subgiant-star-related article is a stub. You can help Wikipedia by expanding it. |
|
| This main-sequence-star-related article is a stub. You can help Wikipedia by expanding it. |