HD 114837
HD 114837
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| Observation data Epoch J2000 Equinox J2000 | |
|---|---|
Constellation | Centaurus |
Right ascension | 13h 14m 15.14594s[1] |
Declination | –59° 06′ 11.6528″[1] |
Apparent magnitude (V) | 4.90[2] + 10.2[3] |
| Characteristics | |
Spectral type | F6 V Fe-0.4[4] |
| B−V color index | 6999489000000000000♠0.489±0.020[2] |
| Astrometry | |
| Radial velocity (Rv) | 2998360000000000000♠−64.0±0.3[5] km/s |
| Proper motion (μ) | RA: −249.254[1] mas/yr Dec.: −153.256[1] mas/yr |
| Parallax (π) | 55.0143 ± 0.2644[1] mas |
| Distance | 59.3 ± 0.3 ly (18.18 ± 0.09 pc) |
| Absolute magnitude (MV) | 3.73[6] |
| Details | |
| HD 114837 A | |
| Mass | 1.14[7] M☉ |
| Radius | 1.3[8] R☉ |
| Luminosity | 3.12[2] L☉ |
| Surface gravity (log g) | 4.21[9] cgs |
| Temperature | 7003634600000000000♠6,346±80[9] K |
Metallicity [Fe/H] | −0.27[9] dex |
| Rotational velocity (v sin i) | 7000880000000000000♠8.8±3.0[6] km/s |
| Age | 3.40[9] Gyr |
| Other designations | |
CD−58° 4940, GJ 503, HD 114837, HIP 64583, HR 4989, SAO 240666, WDS J13143-5906A[10] | |
| Database references | |
| SIMBAD | data |
HD 114837 is a suspected binary star[7][3] system in the southern constellation of Centaurus. The brighter star is faintly visible to the naked eye with an apparent visual magnitude of 4.90.[2] It has a magnitude 10.2 candidate common proper motion companion at an angular separation of 6995203621746066005♠4.2″, as of 2014.[3] The distance to this system, based on an annual parallax shift of 6996266716852966644♠55.0143″ as seen from Earth's orbit,[1] is 59.3 light years. It is moving closer with a heliocentric radial velocity of −64 km/s,[5] and will approach to within 21.8 ly in around 240,600 years.[11]
The primary component is an F-type main-sequence star with a stellar classification of F6 V Fe-0.4,[4] showing a mild underabundance of iron in its spectrum. It is about 3.4[9] billion years old with 1.14[7] times the mass of the Sun and about 1.3[8] times the Sun's radius. This star is radiating 3.12[2] times the Sun's luminosity from its photosphere at an effective temperature of 6,346 K.[9]
References[edit]
^ abcdef Brown, A. G. A.; et al. (Gaia collaboration) (August 2018). "Gaia Data Release 2: Summary of the contents and survey properties". Astronomy & Astrophysics. 616. A1. arXiv:1804.09365. Bibcode:2018A&A...616A...1G. doi:10.1051/0004-6361/201833051..mw-parser-output cite.citation{font-style:inherit}.mw-parser-output q{quotes:"""""""'""'"}.mw-parser-output code.cs1-code{color:inherit;background:inherit;border:inherit;padding:inherit}.mw-parser-output .cs1-lock-free a{background:url("//upload.wikimedia.org/wikipedia/commons/thumb/6/65/Lock-green.svg/9px-Lock-green.svg.png")no-repeat;background-position:right .1em center}.mw-parser-output .cs1-lock-limited a,.mw-parser-output .cs1-lock-registration a{background:url("//upload.wikimedia.org/wikipedia/commons/thumb/d/d6/Lock-gray-alt-2.svg/9px-Lock-gray-alt-2.svg.png")no-repeat;background-position:right .1em center}.mw-parser-output .cs1-lock-subscription a{background:url("//upload.wikimedia.org/wikipedia/commons/thumb/a/aa/Lock-red-alt-2.svg/9px-Lock-red-alt-2.svg.png")no-repeat;background-position:right .1em center}.mw-parser-output .cs1-subscription,.mw-parser-output .cs1-registration{color:#555}.mw-parser-output .cs1-subscription span,.mw-parser-output .cs1-registration span{border-bottom:1px dotted;cursor:help}.mw-parser-output .cs1-hidden-error{display:none;font-size:100%}.mw-parser-output .cs1-visible-error{font-size:100%}.mw-parser-output .cs1-subscription,.mw-parser-output .cs1-registration,.mw-parser-output .cs1-format{font-size:95%}.mw-parser-output .cs1-kern-left,.mw-parser-output .cs1-kern-wl-left{padding-left:0.2em}.mw-parser-output .cs1-kern-right,.mw-parser-output .cs1-kern-wl-right{padding-right:0.2em}
^ abcde 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.
^ abc Chini, R.; et al. (January 2014), "New visual companions of solar-type stars within 25 pc", Monthly Notices of the Royal Astronomical Society, 437 (1): 879–886, arXiv:1310.2684, Bibcode:2014MNRAS.437..879C, doi:10.1093/mnras/stt1953.
^ ab Gray, R. O.; et al. (July 2006), "Contributions to the Nearby Stars (NStars) Project: spectroscopy of stars earlier than M0 within 40 pc-The Southern Sample", The Astronomical Journal, 132 (1): 161–170, arXiv:astro-ph/0603770, Bibcode:2006AJ....132..161G, doi:10.1086/504637.
^ ab de Bruijne, J. H. J.; Eilers, A.-C. (October 2012), "Radial velocities for the HIPPARCOS-Gaia Hundred-Thousand-Proper-Motion project", Astronomy & Astrophysics, 546: 14, arXiv:1208.3048, Bibcode:2012A&A...546A..61D, doi:10.1051/0004-6361/201219219, A61.
^ ab Ammler-von Eiff, M.; Reiners, A. (June 2012), "New measurements of rotation and differential rotation in A-F stars: are there two populations of differentially rotating stars?", Astronomy & Astrophysics, 542: A116, arXiv:1204.2459, Bibcode:2012A&A...542A.116A, doi:10.1051/0004-6361/201118724.
^ abc Fuhrmann, K.; Chini, R.; Kaderhandt, L.; Chen, Z. (2017), "Multiplicity among Solar-type Stars", The Astrophysical Journal, 836: 139, Bibcode:2017ApJ...836..139F, doi:10.3847/1538-4357/836/1/139.
^ ab Pasinetti Fracassini, L. E.; Pastori, L.; Covino, S.; Pozzi, A. (February 2001), "Catalogue of Apparent Diameters and Absolute Radii of Stars (CADARS) - Third edition", Astronomy and Astrophysics, 367 (2): 521–524, arXiv:astro-ph/0012289, Bibcode:2001A&A...367..521P, doi:10.1051/0004-6361:20000451.
^ abcdef Casagrande, L.; et al. (June 2011), "New constraints on the chemical evolution of the solar neighbourhood and Galactic disc(s). Improved astrophysical parameters for the Geneva-Copenhagen Survey", Astronomy and Astrophysics, 530: A138, arXiv:1103.4651, Bibcode:2011A&A...530A.138C, doi:10.1051/0004-6361/201016276.
^ "HD 114837". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 2018-07-05.
^ Bailer-Jones, C. A. L. (March 2015), "Close encounters of the stellar kind", Astronomy & Astrophysics, 575: 13, arXiv:1412.3648, Bibcode:2015A&A...575A..35B, doi:10.1051/0004-6361/201425221, A35.
Categories:
- F-type main-sequence stars
- Gould objects
- Centaurus (constellation)
- Durchmusterung objects
- Gliese and GJ objects
- Henry Draper Catalogue objects
- Hipparcos objects
- HR objects
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