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Star in the constellation Serpens
τ6 Serpentis
Observation data
Epoch J2000.0 Equinox J2000.0 (ICRS)
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| Constellation
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Serpens
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| Right ascension
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15h 40m 59.1008s[1]
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| Declination
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+16° 01′ 28.517″[1]
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| Apparent magnitude (V)
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6.000[1]
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| Characteristics
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| Spectral type
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G8III[1]
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| U−B color index
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+0.61[2]
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| B−V color index
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+0.90[2]
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| R−I color index
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+0.46[2]
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| Astrometry |
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| Radial velocity (Rv) | 3.4 ± 0.9[1] km/s | | Proper motion (μ) | RA: 22.16[1] mas/yr
Dec.: −16.80[1] mas/yr | | Parallax (π) | 7.24 ± 0.79 mas[1] | | Distance | approx. 450 ly
(approx. 140 pc) | | Absolute magnitude (MV) | −0.33[3] | |
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| Details |
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| Radius | 11[4] R☉ | | Luminosity | 150[3] L☉ | | Metallicity [Fe/H] | −0.08±0.04[3] dex | |
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| Other designations |
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τ6 Ser, 19 Serpentis, BD+16° 2816, GC 21089, HD 140027, HIP 76810, HR 5840, SAO 101678, PPM 131601
τ 6 Ser, Tau 6 Serpentis, Tau 6 Ser, 19 Serpentis, 19 Ser, BD+16 2816, GC 21089, HD 140027, HIP 76810, HR 5840, PPM 131601, SAO 101678. [1] |
| Database references |
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| SIMBAD | data |
Tau6 Serpentis, Latinized from τ6 Serpentis, is a G-type giant star in the constellation of Serpens, approximately 450 light-years from the Earth.[1] It has an apparent visual magnitude of approximately 6.000,[1] and is a member of the Ursa Major Stream.[2]
References
- ^ a b c d e f g h i j k * 19 Ser -- Star, database entry, SIMBAD. Accessed on line September 19, 2008.
- ^ a b c d HR 5840, database entry, The Bright Star Catalogue, 5th Revised Ed. (Preliminary Version), D. Hoffleit and W. H. Warren, Jr., CDS ID V/50. Accessed September 19, 2008.
- ^ a b c 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.
- ^ HD 140027, database entry, Catalog of Apparent Diameters and Absolute Radii of Stars (CADARS), 3rd edition, L. E. Pasinetti-Fracassini, L. Pastori, S. Covino, and A. Pozzi, CDS ID II/224. Accessed on line September 19, 2008.
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