62 Serpentis

62 Serpentis
Observation data
Epoch J2000      Equinox J2000
Constellation Aquila
Right ascension 18h 55m 27.44694s[1]
Declination +06° 36′ 55.0755″[1]
Apparent magnitude (V) 5.57[2]
Characteristics
Spectral type G9 III[3]
U−B color index +0.87[2]
B−V color index +1.04[2]
R−I color index 0.55
Astrometry
Radial velocity (Rv)23.31±0.09[4] km/s
Proper motion (μ) RA: +7.76[1] mas/yr
Dec.: –84.98[1] mas/yr
Parallax (π)11.33 ± 0.93[1] mas
Distance290 ± 20 ly
(88 ± 7 pc)
Orbit[4][5]
Primary62 Serpentis A
Companion62 Serpentis B
Period (P)2994±29 d
Semi-major axis (a)26.6±3.4 Mas
Eccentricity (e)0.243±0.026
Inclination (i)31.9±3.6°
Longitude of the node (Ω)12.6±7.7°
Periastron epoch (T)2444276.5±52 JD
Argument of periastron (ω)
(secondary)		35±7°
Semi-amplitude (K1)
(primary)		4.65±0.13 km/s
Details
Surface gravity (log g)2.7[6] cgs
Temperature4,721[6] K
Metallicity [Fe/H]–0.26[6] dex
Rotational velocity (v sin i)0.0[6] km/s
Other designations
BD+06 3978, FK5 3509, HD 175515, HIP 92872, HR 7135, SAO 124050.[3]
Database references
SIMBADdata

62 Serpentis is the Flamsteed designation for this binary star. Despite its name, the star can be found in the equatorial constellation of Aquila.[7]

References

  1. 1 2 3 4 5 van Leeuwen, F. (November 2007), "Validation of the new Hipparcos reduction", Astronomy and Astrophysics, 474 (2): 653–664, arXiv:0708.1752, Bibcode:2007A&A...474..653V, doi:10.1051/0004-6361:20078357.
  2. 1 2 3 Johnson, H. L.; et al. (1966), "UBVRIJKL photometry of the bright stars", Communications of the Lunar and Planetary Laboratory, 4 (99): 99, Bibcode:1966CoLPL...4...99J.
  3. 1 2 "HR 7135 -- Star", SIMBAD Astronomical Database, Centre de Données astronomiques de Strasbourg, retrieved 2012-07-26.
  4. 1 2 Griffin, R. F. (1981). "Spectroscopic binary orbits from photoelectric radial velocities. Paper 41: HR 7135". The Observatory. 101: 208–211. Bibcode:1981Obs...101..208G.
  5. ↑ Jancart, S.; et al. (2005). "Astrometric orbits of SB9 stars". Astronomy and Astrophysics. 442: 365–380. arXiv:astro-ph/0507695. Bibcode:2005A&A...442..365J. doi:10.1051/0004-6361:20053003.
  6. 1 2 3 4 Massarotti, Alessandro; et al. (January 2008), "Rotational and Radial Velocities for a Sample of 761 HIPPARCOS Giants and the Role of Binarity", The Astronomical Journal, 135 (1): 209–231, Bibcode:2008AJ....135..209M, doi:10.1088/0004-6256/135/1/209.
  7. ↑ Kaler, James B. (1996), The ever-changing sky: a guide to the celestial sphere, Cambridge University Press, p. 119, ISBN 0-521-38053-7.
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