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]
| Observation data Epoch J2000.0 Equinox J2000.0 (ICRS) | |
|---|---|
| Constellation | Serpens |
| Right ascension | 15h 40m 59.1008s[1] |
| Declination | +16° 01′ 28.517″[1] |
| Apparent magnitude (V) | 6.000[1] |
| Characteristics | |
| Spectral type | G8III[1] |
| U−B color index | +0.61[2] |
| B−V color index | +0.90[2] |
| R−I color index | +0.46[2] |
| Astrometry | |
| 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] |
| Details | |
| Radius | 11[4] R☉ |
| Luminosity | 150[3] L☉ |
| Metallicity [Fe/H] | −0.08±0.04[3] dex |
| Other designations | |
| Database references | |
| SIMBAD | data |
References
edit- ^ 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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