Tau5 Serpentis

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For other stars with this Bayer designation, see Tau Serpentis.
τ5 Serpentis
Observation data
Epoch J2000.0      Equinox J2000.0 (ICRS)
Constellation Serpens
Right ascension 15h 36m 29.2391s[1]
Declination +16° 07 08.705[1]
Apparent magnitude (V)5.938[1]
Characteristics
Spectral typeF3V[1]
U−B color index+0.04[2]
B−V color index+0.29[2]
Astrometry
Radial velocity (Rv)−2 ± 5[1] km/s
Proper motion (μ) RA: 71.54[1] mas/yr
Dec.: −5.54[1] mas/yr
Parallax (π)20.40 ± 0.81[1] mas
Distance160 ± 6 ly
(49 ± 2 pc)
Absolute magnitude (MV)2.49[3]
Details
Mass1.52
(1.47 to 1.58)[4] M
Temperature6900[4] K
Metallicity[Fe/H] = −0.20[4]
Age(1.6 ± 0.1) × 109  [4] years
Other designations
τ5 Ser, Tau5 Serpentis, Tau5 Ser, 18 Serpentis, 18 Ser, BD+16 2807, GC 20985, HD 139225, HIP 76424, HR 5804, PPM 131544, SAO 101642.[1]
Database references
SIMBADdata

Tau5 Serpentis (Tau5 Ser, τ5 Serpentis, τ5 Ser) is a F-type main sequence star in the constellation of Serpens, approximately 160 light-years from Earth.[1] It has an apparent visual magnitude of approximately 5.938.[1]

References

  1. 1.0 1.1 1.2 1.3 1.4 1.5 1.6 1.7 1.8 1.9 1.10 * 18 Ser -- Star, database entry, SIMBAD. Accessed on line September 19, 2008.
  2. 2.0 2.1 HR 5804, 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. From apparent magnitude and parallax.
  4. 4.0 4.1 4.2 4.3 HD 139225, database entry, Geneva-Copenhagen Survey of the Solar neighbourhood, J. Holmberg et al., 2007, CDS ID V/117A. Accessed on line November 19, 2008.
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