HD 33266

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HD 33266
Observation data
Epoch J2000.0      Equinox J2000.0
Constellation Camelopardalis
Right ascension 05h 13m 02.81s[1]
Declination +61° 51′ 00.15″[1]
Apparent magnitude (V) 6.167[2]
Characteristics
Spectral type A2 III[3]
B−V color index 0.032±0.005[4]
Astrometry
Radial velocity (Rv)−4.4±2[5] km/s
Proper motion (μ) RA: -12.055 mas/yr
Dec.: 2.037 mas/yr
Parallax (π)6.7221 ± 0.0481[1] mas
Distance485 ± 3 ly
(149 ± 1 pc)
Absolute magnitude (MV)0.58[4]
Details
Mass2.45+0.34
−0.32[6] M☉
Radius3.14±0.08[6] R☉
Luminosity75.9+7.8
−5.8[6] L☉
Surface gravity (log g)3.83+0.07
−0.06[6] cgs
Temperature9,610+300
−204[6] K
Metallicity [Fe/H]-0.07[7] dex
Rotational velocity (v sin i)15[8] km/s
Other designations
BD+61 766, HIP 24313, HR 1675, SAO 13409
Database references
SIMBADdata

HD 33266 (HR 1675) is a solitary star located in the constellation Camelopardalis. With an apparent magnitude of 6.167, it is visible to the unaided eye. This is star is currently located 485 light years based on parallax, but is drifting closer with a radial velocity of 4.4 km/s.

Properties[]

HD 33266 has a classification of “A2III”, which states that it is an A-type star that has exhausted hydrogen at its core and left the main sequence. It has 2.45 times the mass of the Sun, but has 3.14 times the Sun’s radius. It radiates at 75.92 solar luminosities, and has an effective temperature of 9610 K, which gives it a white hue. HD 3266 is slightly metal deficient, with 85% the abundance of heavy metals compared to the Sun.

References[]

  1. ^ a b c d 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 Hog, E. (March 2000), "The Tycho-2 catalogue of the 2.5 million brightest stars.", Astronomy and Astrophysics, 355: L27-30, Bibcode:2000A&A...355L..27H
  3. ^ a b Cowley, A.; Cowley, C. (April 1969), "A study of the bright A stars. I. A catalogue of spectral classifications.", Astronomical Journal, 74: 375–406, Bibcode:1969AJ.....74..375C, doi:10.1086/110819
  4. ^ a b c Anderson, E.; Francis, Ch. (May 2012), "XHIP: An extended hipparcos compilation", Astronomy Letters, 38 (5): 331–346, arXiv:1108.4971, Bibcode:2012AstL...38..331A, doi:10.1134/S1063773712050015, S2CID 119257644
  5. ^ a b Wilson, Ralph Elmer (1953), "General catalogue of stellar radial velocities.", Carnegie Institution of Washington, Bibcode:1953GCRV..C......0W
  6. ^ a b c d e f Stassun, Kevian G. (October 2019), "The Revised TESS Input Catalog and Candidate Target List", The Astronomical Journal, 158 (4): 22, arXiv:1905.10694, Bibcode:2019AJ....158..138S, doi:10.3847/1538-3881/ab3467, S2CID 166227927
  7. ^ a b Anders, F. (August 2019), "Photo-astrometric distances, extinctions, and astrophysical parameters for Gaia DR2 stars brighter than G = 18", Astronomy & Astrophysics, 628: 38, arXiv:1904.11302, Bibcode:2019A&A...628A..94A, doi:10.1051/0004-6361/201935765, S2CID 131780028
  8. ^ a b Royer, F.; Grenier, S. (October 2002), "Rotational velocities of A-type stars in the northern hemisphere. II. Measurement of v sin i", Astronomy and Astrophysics, 393: 897–911, arXiv:astro-ph/0205255, Bibcode:2002A&A...393..897R, doi:10.1051/0004-6361:20020943, S2CID 14070763
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