| Observation data Epoch J2000 Equinox J2000 | |
|---|---|
| Constellation | Sagittarius |
| Right ascension | 20h 04m 19.59387s [1] |
| Declination | −32° 03′ 22.6729″ [1] |
| Apparent magnitude (V) | 4.99 [2] |
| Characteristics | |
| Spectral type | K1III [3] |
| U−B color index | +1.18 [4] |
| B−V color index | +1.21 [4] |
| Variable type | suspected [5] |
| Astrometry | |
| Radial velocity (Rv) | -11.80 [6] km/s |
| Proper motion (μ) |
RA: +45.07
[1]
mas/
yr Dec.: -11.74 [1] mas/ yr |
| Parallax (π) | 11.22 ± 0.25 mas [1] |
| Distance | 291 ± 6
ly (89 ± 2 pc) |
| Absolute magnitude (MV) | 0.24 [2] |
| Details | |
| Mass | 1.48 [7] M☉ |
| Radius | 19 [7] R☉ |
| Luminosity | 121 [2] L☉ |
| Surface gravity (log g) | 2.05 [7] cgs |
| Temperature | 4,467 [7] K |
| Metallicity [Fe/H] | -0.53 [2] dex |
| Rotational velocity (v sin i) | < 1.0 [8] km/s |
| Other designations | |
| Database references | |
| SIMBAD | data |
HD 190056 is a class K1III [3] (orange giant) star in the constellation Sagittarius. Its apparent magnitude is 4.99 [2] and it is approximately 291 light years away based on parallax. [1]
It is a suspected variable, [5] and the primary has one companion, B, with magnitude 12.7 and separation 54.4". [9]
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. Vizier catalog entry
- ^ a b c d e Anderson, E.; Francis, Ch. (2012). "XHIP: An extended hipparcos compilation". Astronomy Letters. 38 (5): 331. arXiv: 1108.4971. Bibcode: 2012AstL...38..331A. doi: 10.1134/S1063773712050015. S2CID 119257644. Vizier catalog entry
- ^ a b Hoffleit, D.; Warren, W. H. (1995). "VizieR Online Data Catalog: Bright Star Catalogue, 5th Revised Ed. (Hoffleit+, 1991)". VizieR On-line Data Catalog: V/50. Originally Published in: 1964BS....C......0H. 5050. Bibcode: 1995yCat.5050....0H.
- ^ a b Mermilliod, J. C. (2006). "VizieR Online Data Catalog: Homogeneous Means in the UBV System (Mermilliod 1991)". VizieR On-line Data Catalog: II/168. Originally Published in: Institut d'Astronomie. 2168. Bibcode: 2006yCat.2168....0M. Vizier catalog entry
- ^ a b Samus, N. N.; Durlevich, O. V.; et al. (2009). "VizieR Online Data Catalog: General Catalogue of Variable Stars (Samus+ 2007-2013)". VizieR On-line Data Catalog: B/GCVS. Originally Published in: 2009yCat....102025S. 1. Bibcode: 2009yCat....102025S.
- ^ Wilson, R. E. (1953). General Catalogue of Stellar Radial Velocities. Carnegie Institution for Science. Bibcode: 1953GCRV..C......0W. LCCN 54001336.
- ^ a b c d Allende Prieto, C.; Lambert, D. L. (1999). "Fundamental parameters of nearby stars from the comparison with evolutionary calculations: Masses, radii and effective temperatures". Astronomy and Astrophysics. 352: 555–562. arXiv: astro-ph/9911002. Bibcode: 1999A&A...352..555A. Vizier catalog entry
- ^ De Medeiros, J. R.; Alves, S.; Udry, S.; Andersen, J.; Nordström, B.; Mayor, M. (2014). "A catalog of rotational and radial velocities for evolved stars". Astronomy & Astrophysics. 561: A126. arXiv: 1312.3474. Bibcode: 2014A&A...561A.126D. doi: 10.1051/0004-6361/201220762. S2CID 54046583. Vizier catalog entry
- ^ Mason, Brian D.; Wycoff, Gary L.; Hartkopf, William I.; Douglass, Geoffrey G.; Worley, Charles E. (2001). "The 2001 US Naval Observatory Double Star CD-ROM. I. The Washington Double Star Catalog". The Astronomical Journal. 122 (6): 3466. Bibcode: 2001AJ....122.3466M. doi: 10.1086/323920. Vizier catalog entry
 | This giant-star-related article is a stub. You can help Wikipedia by expanding it. |
 | This binary or multiple star system–related article is a stub. You can help Wikipedia by expanding it. |
 | This variable star–related article is a stub. You can help Wikipedia by expanding it. |
| Observation data Epoch J2000 Equinox J2000 | |
|---|---|
| Constellation | Sagittarius |
| Right ascension | 20h 04m 19.59387s [1] |
| Declination | −32° 03′ 22.6729″ [1] |
| Apparent magnitude (V) | 4.99 [2] |
| Characteristics | |
| Spectral type | K1III [3] |
| U−B color index | +1.18 [4] |
| B−V color index | +1.21 [4] |
| Variable type | suspected [5] |
| Astrometry | |
| Radial velocity (Rv) | -11.80 [6] km/s |
| Proper motion (μ) |
RA: +45.07
[1]
mas/
yr Dec.: -11.74 [1] mas/ yr |
| Parallax (π) | 11.22 ± 0.25 mas [1] |
| Distance | 291 ± 6
ly (89 ± 2 pc) |
| Absolute magnitude (MV) | 0.24 [2] |
| Details | |
| Mass | 1.48 [7] M☉ |
| Radius | 19 [7] R☉ |
| Luminosity | 121 [2] L☉ |
| Surface gravity (log g) | 2.05 [7] cgs |
| Temperature | 4,467 [7] K |
| Metallicity [Fe/H] | -0.53 [2] dex |
| Rotational velocity (v sin i) | < 1.0 [8] km/s |
| Other designations | |
| Database references | |
| SIMBAD | data |
HD 190056 is a class K1III [3] (orange giant) star in the constellation Sagittarius. Its apparent magnitude is 4.99 [2] and it is approximately 291 light years away based on parallax. [1]
It is a suspected variable, [5] and the primary has one companion, B, with magnitude 12.7 and separation 54.4". [9]
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. Vizier catalog entry
- ^ a b c d e Anderson, E.; Francis, Ch. (2012). "XHIP: An extended hipparcos compilation". Astronomy Letters. 38 (5): 331. arXiv: 1108.4971. Bibcode: 2012AstL...38..331A. doi: 10.1134/S1063773712050015. S2CID 119257644. Vizier catalog entry
- ^ a b Hoffleit, D.; Warren, W. H. (1995). "VizieR Online Data Catalog: Bright Star Catalogue, 5th Revised Ed. (Hoffleit+, 1991)". VizieR On-line Data Catalog: V/50. Originally Published in: 1964BS....C......0H. 5050. Bibcode: 1995yCat.5050....0H.
- ^ a b Mermilliod, J. C. (2006). "VizieR Online Data Catalog: Homogeneous Means in the UBV System (Mermilliod 1991)". VizieR On-line Data Catalog: II/168. Originally Published in: Institut d'Astronomie. 2168. Bibcode: 2006yCat.2168....0M. Vizier catalog entry
- ^ a b Samus, N. N.; Durlevich, O. V.; et al. (2009). "VizieR Online Data Catalog: General Catalogue of Variable Stars (Samus+ 2007-2013)". VizieR On-line Data Catalog: B/GCVS. Originally Published in: 2009yCat....102025S. 1. Bibcode: 2009yCat....102025S.
- ^ Wilson, R. E. (1953). General Catalogue of Stellar Radial Velocities. Carnegie Institution for Science. Bibcode: 1953GCRV..C......0W. LCCN 54001336.
- ^ a b c d Allende Prieto, C.; Lambert, D. L. (1999). "Fundamental parameters of nearby stars from the comparison with evolutionary calculations: Masses, radii and effective temperatures". Astronomy and Astrophysics. 352: 555–562. arXiv: astro-ph/9911002. Bibcode: 1999A&A...352..555A. Vizier catalog entry
- ^ De Medeiros, J. R.; Alves, S.; Udry, S.; Andersen, J.; Nordström, B.; Mayor, M. (2014). "A catalog of rotational and radial velocities for evolved stars". Astronomy & Astrophysics. 561: A126. arXiv: 1312.3474. Bibcode: 2014A&A...561A.126D. doi: 10.1051/0004-6361/201220762. S2CID 54046583. Vizier catalog entry
- ^ Mason, Brian D.; Wycoff, Gary L.; Hartkopf, William I.; Douglass, Geoffrey G.; Worley, Charles E. (2001). "The 2001 US Naval Observatory Double Star CD-ROM. I. The Washington Double Star Catalog". The Astronomical Journal. 122 (6): 3466. Bibcode: 2001AJ....122.3466M. doi: 10.1086/323920. Vizier catalog entry
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| This giant-star-related article is a stub. You can help Wikipedia by expanding it. |
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| This binary or multiple star system–related article is a stub. You can help Wikipedia by expanding it. |
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| This variable star–related article is a stub. You can help Wikipedia by expanding it. |