CQ Camelopardalis

CQ Camelopardalis
Observation data; Epoch J2000 Equinox J2000
Constellation	Camelopardalis
Right ascension	03h 24m 40.555745s[1]
Declination	+64° 35′ 09.5771″[1]
Apparent magnitude (V)	5.15-5.27[2]
Characteristics
Spectral type	M0II[2]
U−B color index	2.06
B−V color index	2.08
R−I color index	1.23
Variable type	Lc[2]
Astrometry
Radial velocity (Rv)	-22.20 km/s
Proper motion (μ)	RA: -3.576 mas/yr ; Dec.: 5.024 mas/yr
Parallax (π)	1.53 ± 0.23[3] mas
Distance	approx. 2,100 ly ; (approx. 650 pc)
Details
Radius	355[4] R☉
Luminosity	21,878 - 23,550[4] L☉
Temperature	3,790±111[4] K
Other designations
	HD 20797, BD+64° 391, HIC 15890, HIP 15890, FK5 1096, HR 1009, SAO 12743.
Database references
SIMBAD	data

CQ Camelopardalis is a variable star in the constellation Camelopardalis. A red giant of spectral type M0II, it varies irregularly from magnitude 5.15 to 5.27.[2] Located around 650 parsecs distant, it shines with a luminosity over 20,000 times that of the Sun and has a surface temperature of 3,790 K.[4]

References

Van Leeuwen, F. (2007). "Validation of the new Hipparcos reduction". Astronomy and Astrophysics. 474 (2): 653. arXiv:0708.1752. Bibcode:2007A&A...474..653V. doi:10.1051/0004-6361:20078357.
Otero, Sebastian Alberto (15 August 2011). "CQ Camelopardalis". The International Variable Star Index. American Association of Variable Star Observers. Retrieved 20 July 2014.
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.
Messineo, M.; Brown, A. G. A. (2019). "A Catalog of Known Galactic K-M Stars of Class I Candidate Red Supergiants in Gaia DR2". The Astronomical Journal. 158: 20. arXiv:1905.03744. Bibcode:2019AJ....158...20M. doi:10.3847/1538-3881/ab1cbd.

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[hipparcos-1] Van Leeuwen, F. (2007). "Validation of the new Hipparcos reduction". Astronomy and Astrophysics. 474 (2): 653. arXiv:0708.1752. Bibcode:2007A&A...474..653V. doi:10.1051/0004-6361:20078357.

[AAVSOCQ-2] Otero, Sebastian Alberto (15 August 2011). "CQ Camelopardalis". The International Variable Star Index. American Association of Variable Star Observers. Retrieved 20 July 2014.

[dr2-3] 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.

[messinio-4] Messineo, M.; Brown, A. G. A. (2019). "A Catalog of Known Galactic K-M Stars of Class I Candidate Red Supergiants in Gaia DR2". The Astronomical Journal. 158: 20. arXiv:1905.03744. Bibcode:2019AJ....158...20M. doi:10.3847/1538-3881/ab1cbd.