Astronomy:Tau6 Serpentis
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Short description: Star in the constellation Serpens
| Observation data Equinox J2000.0]] (ICRS) | |
|---|---|
| Constellation | Serpens[1] |
| Right ascension | 15h 40m 59.1008s[2] |
| Declination | +16° 01′ 28.517″[2] |
| Apparent magnitude (V) | 6.000[2] |
| Characteristics | |
| Spectral type | G8III[2] |
| U−B color index | +0.61[3] |
| B−V color index | +0.90[3] |
| R−I color index | +0.46[3] |
| Astrometry | |
| Radial velocity (Rv) | 3.4±0.9[2] km/s |
| Proper motion (μ) | RA: 22.16[2] mas/yr Dec.: −16.80[2] mas/yr |
| Parallax (π) | 7.24 ± 0.79[2] mas |
| Distance | approx. 450 ly (approx. 140 pc) |
| Absolute magnitude (MV) | −0.33[1] |
| Details | |
| Mass | 3.2[4] M☉ |
| Radius | 15[4] R☉ |
| Luminosity | 137[4] L☉ |
| Surface gravity (log g) | 2.64[4] cgs |
| Temperature | 5,126[4] K |
| Metallicity [Fe/H] | −0.01[4] dex |
| Rotational velocity (v sin i) | 4,5[5] km/s |
| Age | 310[4] Myr |
| Other designations | |
| Database references | |
| 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.[2] It has an apparent visual magnitude of approximately 6.000,[2] and is a member of the Ursa Major Stream.[3]
References
- ↑ 1.0 1.1 Anderson, E.; Francis, Ch. (2012), "XHIP: An extended hipparcos compilation", Astronomy Letters 38 (5): 331, doi:10.1134/S1063773712050015, Bibcode: 2012AstL...38..331A.
- ↑ 2.00 2.01 2.02 2.03 2.04 2.05 2.06 2.07 2.08 2.09 2.10 * 19 Ser -- Star, database entry, SIMBAD. Accessed on line September 19, 2008.
- ↑ 3.0 3.1 3.2 3.3 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.
- ↑ 4.0 4.1 4.2 4.3 4.4 4.5 4.6 Reffert, Sabine; Bergmann, Christoph; Quirrenbach, Andreas; Trifonov, Trifon; Künstler, Andreas (2015). "Precise radial velocities of giant stars. VII. Occurrence rate of giant extrasolar planets as a function of mass and metallicity". Astronomy and Astrophysics 574: A116. doi:10.1051/0004-6361/201322360. Bibcode: 2015A&A...574A.116R.
- ↑ Hekker, S.; Meléndez, J. (2007). "Precise radial velocities of giant stars. III. Spectroscopic stellar parameters". Astronomy and Astrophysics 475 (3): 1003. doi:10.1051/0004-6361:20078233. Bibcode: 2007A&A...475.1003H.
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