Astronomy:43 Camelopardalis
| Observation data Equinox J2000.0]] (ICRS) | |
|---|---|
| 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[1] mas |
| 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 |
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]
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
In 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
- ↑ 1.0 1.1 1.2 1.3 1.4 1.5 Brown, A. G. A. (August 2018). "Gaia Data Release 2: Summary of the contents and survey properties". Astronomy & Astrophysics 616: A1. doi:10.1051/0004-6361/201833051. Bibcode: 2018A&A...616A...1G. Gaia DR2 record for this source at VizieR.
- ↑ 2.0 2.1 2.2 2.3 Anderson, E.; Francis, Ch. (2012), "XHIP: An extended hipparcos compilation", Astronomy Letters 38 (5): 331, doi:10.1134/S1063773712050015, Bibcode: 2012AstL...38..331A.
- ↑ 3.0 3.1 Lesh, Janet Rountree (December 1968), "The Kinematics of the Gould Belt: an Expanding Group?", Astrophysical Journal Supplement 17: 371, doi:10.1086/190179, Bibcode: 1968ApJS...17..371L.
- ↑ 4.0 4.1 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, doi:10.1051/0004-6361/201219219, A61, Bibcode: 2012A&A...546A..61D.
- ↑ 5.0 5.1 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, doi:10.1002/asna.200911355, Bibcode: 2010AN....331..349H.
- ↑ 6.0 6.1 Pasinetti Fracassini, L. E. et al. (February 2001), "Catalogue of Apparent Diameters and Absolute Radii of Stars (CADARS)", Astronomy and Astrophysics 367: 521–524, doi:10.1051/0004-6361:20000451, Bibcode: 2001A&A...367..521P.
- ↑ 7.0 7.1 7.2 7.3 7.4 7.5 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, doi:10.1051/0004-6361/201628541, A22, Bibcode: 2017A&A...597A..22S.
- ↑ 8.0 8.1 "43 Cam". SIMBAD. Centre de données astronomiques de Strasbourg. http://simbad.u-strasbg.fr/simbad/sim-basic?Ident=43+Cam.
- ↑ 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, doi:10.1111/j.1365-2966.2008.13596.x, Bibcode: 2008MNRAS.389..869E.
- ↑ (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 , Hong Kong Space Museum. Accessed on line November 23, 2010.
- ↑ Allen, Richard Hinckley (1963), "Camelopardalis", Star Names — Their Lore and Meaning, Dover edition, https://penelope.uchicago.edu/Thayer/E/Gazetteer/Topics/astronomy/_Texts/secondary/ALLSTA/Camelopardalis*.html.
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