Tau³ Serpentis

Tau³ Serpentis, Latinized from τ³ Serpentis, is a G-type giant star in the constellation of Serpens. It is approximately 410 light-years from Earth.[1] It has an apparent visual magnitude of approximately 6.108.[1]

τ³ Serpentis

Observation data Epoch J2000.0      Equinox J2000.0 (ICRS)
Constellation	Serpens
Right ascension	15^h 35^m 33.2302^s[1]
Declination	+17° 39′ 19.999″[1]
Apparent magnitude (V)	6.108[1]
Characteristics
Spectral type	G8III:[1]
B−V color index	+0.94[2]
Astrometry
Radial velocity (Rv)	−22.3 ± 2[1] km/s
Proper motion (μ)	RA: −77.08[1] mas/yr Dec.: −13.25[1] mas/yr
Parallax (π)	7.87 ± 0.87[1] mas
Distance	approx. 410 ly (approx. 130 pc)
Absolute magnitude (MV)	+0.78[3]
Details
Luminosity	57[3] L☉
Other designations
τ^3 Ser, 15 Serpentis, BD+18° 3044, FK5 3230, GC 20962, HD 139074, HIP 76337, HR 5795, SAO 101631, PPM 131527[1]
Database references
SIMBAD	data

References

1. * 15 Ser -- Star, database entry, SIMBAD. Accessed on line September 19, 2008.
2. HR 5795, database entry, The Bright Star Catalogue, 5th Revised Ed. (Preliminary Version), D. Hoffleit and W. H. Warren, Jr., CDS ID V/50. Accessed on line 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.