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40 Camelopardalis

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Star in the constellation Camelopardalis
40 Camelopardalis
Observation data
Epoch J2000.0      Equinox J2000.0
Constellation Camelopardalis
Right ascension 06 15 40.53373
Declination +59° 59′ 56.2694″
Apparent magnitude (V) 5.37
Characteristics
Spectral type K3 III
B−V color index 1.339±0.006
Astrometry
Radial velocity (Rv)+8.56±0.29 km/s
Proper motion (μ) RA: +28.036 mas/yr
Dec.: −21.454 mas/yr
Parallax (π)5.3947 ± 0.1267 mas
Distance600 ± 10 ly
(185 ± 4 pc)
Absolute magnitude (MV)−0.52
Details
Radius39.12+0.60
−0.75 R☉
Luminosity424±12 L☉
Surface gravity (log g)2.10 cgs
Temperature4,187.5+96.8
−31.5 K
Metallicity 0.00 dex
Rotational velocity (v sin i)2.2 km/s
Other designations
40 Cam, BD+60°938, GC 7949, HD 42633, HIP 29730, HR 2201, SAO 13772, WDS J06157+6000A
Database references
SIMBADdata

40 Camelopardalis is a single star in the northern circumpolar constellation of Camelopardalis, located around 600 light years distant from the Sun. It is visible to the naked eye as a faint, orange-hued star with an apparent visual magnitude of 5.37. This object is moving further from the Earth with a heliocentric radial velocity of +8.6 km/s.

This is an aging giant star with a stellar classification of K3 III, having exhausted the hydrogen at its core and evolved away from the main sequence. It has expanded to 39 times the Sun's radius and is radiating 424 times the luminosity of the Sun from its enlarged photosphere at an effective temperature of 4,188 K.

There is a magnitude 11.50 optical companion, located at an angular separation of 104.20″ along a position angle of 355° from 40 Camelopardalis, as of 2010.

References

  1. ^ 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. ^ 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.
  3. ^ McWilliam, Andrew (December 1990), "High-resolution spectroscopic survey of 671 GK giants. I - Stellar atmosphere parameters and abundances", Astrophysical Journal Supplement Series, 74: 1075–1128, Bibcode:1990ApJS...74.1075M, doi:10.1086/191527.
  4. ^ 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, S2CID 59451347, A61.
  5. De Medeiros, J. R.; et al. (November 2000), "Rotation and lithium in single giant stars", Astronomy and Astrophysics, 363: 239–243, arXiv:astro-ph/0010273, Bibcode:2000A&A...363..239D.
  6. ^ "40 Cam". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 2019-04-18.
  7. Eggleton, P. P.; Tokovinin, A. A. (September 2008), "A catalogue of multiplicity among bright stellar systems", Monthly Notices of the Royal Astronomical Society, 389 (2): 869–879, arXiv:0806.2878, Bibcode:2008MNRAS.389..869E, doi:10.1111/j.1365-2966.2008.13596.x, S2CID 14878976.
  8. Mason, B. D.; et al. (2014), "The Washington Visual Double Star Catalog", The Astronomical Journal, 122 (6): 3466, Bibcode:2001AJ....122.3466M, doi:10.1086/323920.
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