HD 112014

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HD 112014
Observation data
Epoch J2000      Equinox J2000
Constellation Camelopardalis
Right ascension 12h 49m 06.67191s[1]
Declination +83° 25′ 04.2208″[1]
Apparent magnitude (V) 5.92[2]
Characteristics
Spectral type A0V + A2V[3]
B−V color index 0.015±0.004[2]
Astrometry
Radial velocity (Rv)+1.0[4] km/s
Proper motion (μ) RA: −24.369[1] mas/yr
Dec.: 18.767[1] mas/yr
Parallax (π)7.8554 ± 0.0702[1] mas
Distance415 ± 4 ly
(127 ± 1 pc)
Orbit[5]
Period (P)3.2865 d
Eccentricity (e)0.0405±0.005
Longitude of the node (Ω)211.05±0.04°
Periastron epoch (T)JD 2424226.669
Argument of periastron (ω)
(primary)		211.1°
Semi-amplitude (K1)
(primary)		108.34±1.05 km/s
Semi-amplitude (K2)
(secondary)		128.86±1.07 km/s
Details
Ba
Radius2.88[6] R☉
Rotational velocity (v sin i)15±12[6] km/s
Bb
Radius2.44[6] R☉
Rotational velocity (v sin i)13±12[6] km/s
Other designations
BD+84 289, GC 17440, HD 112014, HIP 62561, HR 4892, SAO 2101, ADS 8682B, CCDM 12492+8325B, Σ 1694B, Boss 3354
Database references
SIMBADdata

HD 112014 is a star system[7] in the northern constellation of Camelopardalis. It is dimly visible as a point of light with an apparent visual magnitude of 5.92.[2] The distance to this system is approximately 415 light years based on parallax measurements.[1]

The stars HD 112028 and HD 112014 were identified as a double star by F. G. W. Struve in 1820, and are listed as WDS 12492+8325 A and B, respectively, in the Washington Double Star Catalog.[8] The binary nature of component B, or HD 112014, was discovered by J. S. Plaskett in 1919. It is a double-lined spectroscopic binary with an orbital period of 3.29 days and an eccentricity (ovalness) of 0.04.[5] They are separated by 0.0759 AU (11.35 Gm).[6] Both components are A-type main-sequence stars.[3]

References[]

  1. ^ a b c d e f 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. Gaia DR2 record for this source at VizieR.
  2. ^ a b c 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. S2CID 119257644.CS1 maint: postscript (link)
  3. ^ a b Abt, Helmut A.; Morrell, Nidia I. (1995). "The Relation between Rotational Velocities and Spectral Peculiarities among A-Type Stars". Astrophysical Journal Supplement. 99: 135. Bibcode:1995ApJS...99..135A. doi:10.1086/192182.
  4. ^ Wilson, Ralph Elmer (1953). General catalogue of stellar radial velocities. Carnegie Institution of Washington. Bibcode:1953GCRV..C......0W. doi:10.1086/323920.
  5. ^ a b Plaskett, J. S. (January 1926). "Three spectroscopic binary orbits". Publications of the Dominion Observatory Victoria. 3: 247–264. Bibcode:1926PDAO....3..247P.
  6. ^ a b c d e Howe, K. S.; Clarke, C. J. (January 2009). "An analysis of v sin (i) correlations in early-type binaries". Monthly Notices of the Royal Astronomical Society. 392 (1): 448–454. Bibcode:2009MNRAS.392..448H. doi:10.1111/j.1365-2966.2008.14073.x.
  7. ^ Tokovinin, A. (September 2008). "Comparative statistics and origin of triple and quadruple stars". Monthly Notices of the Royal Astronomical Society. 389 (2): 925–938. arXiv:0806.3263. Bibcode:2008MNRAS.389..925T. doi:10.1111/j.1365-2966.2008.13613.x. S2CID 16452670.
  8. ^ Mason, B. D.; et al. (2014). "The Washington Visual Double Star Catalog". The Astronomical Journal. 122: 3466–3471. Bibcode:2001AJ....122.3466M. doi:10.1086/323920.
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