43 Camelopardalis is a single[9] star in the northern circumpolar constellation of Camelopardalis,[8] located roughly 1,060 light years away from the Sun based on parallax.[1] It is visible to the naked eye as a faint, blue-white hued star with an apparent visual magnitude of 5.11.[2] This object is moving closer to the Earth with a heliocentric radial velocity of −21 km/s.[4]
| Observation data Epoch J2000.0 Equinox J2000.0 | |
|---|---|
| Constellation | Camelopardalis |
| Right ascension | 06h 53m 42.24792s[1] |
| Declination | +68° 53′ 17.9238″[1] |
| Apparent magnitude (V) | 5.11[2] |
| Characteristics | |
| Spectral type | B7 III[3] |
| B−V color index | −0.114±0.003[2] |
| Astrometry | |
| Radial velocity (Rv) | −21.0±4.2[4] km/s |
| Proper motion (μ) | RA: +5.001[1] mas/yr Dec.: +7.450[1] mas/yr |
| Parallax (π) | 3.0749 ± 0.1698 mas[1] |
| Distance | 1,060 ± 60 ly (330 ± 20 pc) |
| Absolute magnitude (MV) | −2.26[2] |
| Details | |
| Mass | 5.01±0.31[5] M☉ |
| Radius | 4.4[6] R☉ |
| Luminosity | 724[7] L☉ |
| Temperature | 13,183[7] K |
| Rotational velocity (v sin i) | 190[7] km/s |
| Other designations | |
| Database references | |
| SIMBAD | data |
The stellar classification of 43 Camelopardalis is B7 III,[3] matching that of a blue giant. It is spinning rapidly with a projected rotational velocity of 190 km/s.[7] The star has five[5] times the mass of the Sun and about 4.4[6] times the Sun's radius. It is radiating 724[7] times the luminosity of the Sun from its photosphere at an effective temperature of 13,183 K.[7]
Chinese name
editIn Chinese, 紫微右垣 (Zǐ Wēi Yòu Yuán), meaning Right Wall of Purple Forbidden Enclosure, refers to an asterism consisting of 43 Camelopardalis, α Draconis, κ Draconis, λ Draconis, 24 Ursae Majoris, α Camelopardalis and BK Camelopardalis.[10] Consequently, 43 Camelopardalis itself is known as 紫微右垣五 (Zǐ Wēi Yòu Yuán wǔ, English: the Fifth Star of Right Wall of Purple Forbidden Enclosure.),[citation needed] representing 上衛 (Shǎngwèi), meaning First Imperial Guard.[11] 上衛 (Shǎngwèi) is westernized into Shang Wei by R.H. Allen, the meaning is "Higher Guard", but it is not cleared designation[12]
References
edit- ^ 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.
- ^ a b c d 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.
- ^ a b Lesh, Janet Rountree (December 1968), "The Kinematics of the Gould Belt: an Expanding Group?", Astrophysical Journal Supplement, 17: 371, Bibcode:1968ApJS...17..371L, doi:10.1086/190179.
- ^ a b 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.
- ^ a b Hohle, M. M.; Neuhäuser, R.; Schutz, B. F. (April 2010), "Masses and luminosities of O- and B-type stars and red supergiants", Astronomische Nachrichten, 331 (4): 349, arXiv:1003.2335, Bibcode:2010AN....331..349H, doi:10.1002/asna.200911355, S2CID 111387483.
- ^ a b Pasinetti Fracassini, L. E.; et al. (February 2001), "Catalogue of Apparent Diameters and Absolute Radii of Stars (CADARS)", Astronomy and Astrophysics, 367 (Third ed.): 521–524, arXiv:astro-ph/0012289, Bibcode:2001A&A...367..521P, doi:10.1051/0004-6361:20000451, S2CID 425754.
- ^ a b c d e f Simón-Díaz, S.; et al. (January 2017), "The IACOB project. III. New observational clues to understand macroturbulent broadening in massive O- and B-type stars", Astronomy & Astrophysics, 597: 17, arXiv:1608.05508, Bibcode:2017A&A...597A..22S, doi:10.1051/0004-6361/201628541, S2CID 3478126, A22.
- ^ a b "43 Cam". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 2019-04-22.
- ^ 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.
- ^ (in Chinese) 中國星座神話, written by 陳久金. Published by 台灣書房出版有限公司, 2005, ISBN 978-986-7332-25-7.
- ^ English-Chinese Glossary of Chinese Star Regions, Asterisms and Star Name Archived 2008-09-24 at the Wayback Machine, Hong Kong Space Museum. Accessed on line November 23, 2010.
- ^ Allen, Richard Hinckley (1963), "Camelopardalis", Star Names — Their Lore and Meaning, Dover edition.