Astronomy:62 Serpentis
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| Observation data Equinox J2000.0]] (ICRS) | |
|---|---|
| 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 |
| Distance | 290 ± 20 ly (88 ± 7 pc) |
| Orbit[4][5] | |
| Primary | 62 Serpentis A |
| Companion | 62 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 |
| Temperature | 4,721[6] K |
| Metallicity [Fe/H] | –0.26[6] dex |
| Rotational velocity (v sin i) | 0.0[6] km/s |
| Other designations | |
| Database references | |
| SIMBAD | data |
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
- ↑ 1.0 1.1 1.2 1.3 1.4 van Leeuwen, F. (November 2007), "Validation of the new Hipparcos reduction", Astronomy and Astrophysics 474 (2): 653–664, doi:10.1051/0004-6361:20078357, Bibcode: 2007A&A...474..653V.
- ↑ 2.0 2.1 2.2 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.
- ↑ 3.0 3.1 "HR 7135 -- Star", SIMBAD Astronomical Database (Centre de Données astronomiques de Strasbourg), http://simbad.u-strasbg.fr/simbad/sim-id?Ident=HD+175515, retrieved 2012-07-26.
- ↑ 4.0 4.1 Griffin, R. F. (1981). "Spectroscopic binary orbits from photoelectric radial velocities. Paper 41: HR 7135". The Observatory 101: 208–211. Bibcode: 1981Obs...101..208G. http://articles.adsabs.harvard.edu/full/1981Obs...101..208G.
- ↑ Jancart, S. et al. (2005). "Astrometric orbits of SB9 stars". Astronomy and Astrophysics 442: 365–380. doi:10.1051/0004-6361:20053003. Bibcode: 2005A&A...442..365J. https://www.aanda.org/articles/aa/full/2005/40/aa3003-05/aa3003-05.html.
- ↑ 6.0 6.1 6.2 6.3 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, doi:10.1088/0004-6256/135/1/209, Bibcode: 2008AJ....135..209M.
- ↑ Kaler, James B. (1996), The ever-changing sky: a guide to the celestial sphere, Cambridge University Press, pp. 119, ISBN 0-521-38053-7, https://books.google.com/?id=KYLSMsduNqcC&printsec=frontcover&dq=The+ever-changing+sky:+a+guide+to+the+celestial+sphere+By+James+B.+By+James+B.+Kaler+Kaler#v=onepage&q=%2262%20Serpentis%22&f=false.
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