Tau6 Serpentis

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]

τ6 Serpentis
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[1] mas
Distanceapprox. 450 ly
(approx. 140 pc)
Absolute magnitude (MV)−0.33[3]
Details
Radius11[4] R
Luminosity150[3] L
Metallicity [Fe/H]−0.08±0.04[3] dex
Other designations
τ6 Ser, 19 Serpentis, BD+16° 2816, GC 21089, HD 140027, HIP 76810, HR 5840, SAO 101678, PPM 131601 τ6 Ser, Tau6 Serpentis, Tau6 Ser, 19 Serpentis, 19 Ser, BD+16 2816, GC 21089, HD 140027, HIP 76810, HR 5840, PPM 131601, SAO 101678.[1]
Database references
SIMBADdata

References

  1. * 19 Ser -- Star, database entry, SIMBAD. Accessed on line September 19, 2008.
  2. 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.
  3. 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.
  4. 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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