Cor Caroli

α Canum Venaticorum
Die ligging van α Canum Venaticorum (in die rooi sirkel).
Sterrebeeld	Jaghonde
Bayer-naam	Alpha Canum Venaticorum
Spektraaltipe	α2 CVn: A0pSiEuHg[1] α1 CVn: F2V[2]
Soort	Dubbelster
Waarnemingsdata (Epog J2000)
Regte klimming	α2 CVn: 12h 56m 01.66622s[3] α1 CVn: 12h 56m 00.43258s[3]
Deklinasie	α2 CVn: +38° 19′ 06.1541″[3] α1 CVn: +38° 18′ 53.3768″[3]
Skynmagnitude (m)	α2 CVn: 2,84 tot 2,98[4] α1 CVn: 5,6[5]
Besonderhede
Massa (M☉)	α2 CVn: 2,97 ± 0,07[6] α1 CVn: 1,47 ± 0,15[7]
Radius (R☉)	α2 CVn: 2,49 ± 0,26[6] α1 CVn: 1,5[7]
Ligsterkte (L☉)	α2 CVn: 101 ± 12[6]
Ouderdom (jaar)	α2 CVn: 165+60−70 miljoen[6]
Temperatuur (K)	α2 CVn: 11 600 ± 500[6] α1 CVn: 7 080[7]
Afstand (ligjaar)	~120
Rotasiespoed (km/s)	α2 CVn: 18,4 ± 0,5[6] α1 CVn: 18[8]
Eienskappe
Veranderlikheid	α2 CVn: Alpha2 Canum Venaticorum-veranderlike
Veelvoudigheid	2
Ander name
α CVn, 12 CVn, BD+39° 2580, ADS 8706 AB, CCDM J12560+3819B α2 CVn: α CVn A, 12 CVn A, FK5 485, GC 17557, HD 112413, HIP 63125, HR 4915, SAO 63257. α1 CVn: CVn B, 12 CVn B, GC 17556, HD 112412, HIP 63121, HR 4914, SAO 63256.
Portaal    Sterrekunde

Die Cor Caroli-stelsel is ’n dubbelster met die Bayer-naam Alpha Canum Venaticorum (afgekort as α CVn). Die Internasionale Astronomiese Unie (IAU) gebruik die naam "Cor Caroli" spesifiek vir die helderste van die twee sterre.^[9] Alpha Canum Venaticorum is die helderste ligpunt in die noordelike sterrebeeld Jaghonde (Canes Venatici).

1. ↑ HR 4915, database entry, The Bright Star Catalogue, 5de hersiene uitg., D. Hoffleit en W. H. Warren jr., CDS ID V/50. Besoek op 2 November 2009.
2. ↑ Gray, R. O.; Corbally, C. J.; Garrison, R. F.; McFadden, M. T.; Robinson, P. E. (2003). "Contributions to the Nearby Stars (NStars) Project: Spectroscopy of Stars Earlier than M0 within 40 Parsecs: The Northern Sample. I". The Astronomical Journal. 126 (4): 2048. arXiv:astro-ph/0308182. Bibcode:2003AJ....126.2048G. doi:10.1086/378365.
3. ↑ ^{3,0 3,1 3,2 3,3} van Leeuwen, F.; et al. (2007). "Validation of the new Hipparcos reduction". Astronomy and Astrophysics. 474 (2): 653–664. arXiv:0708.1752. Bibcode:2007A&A...474..653V. doi:10.1051/0004-6361:20078357.
4. ↑ alf 2 CVn, databasis, The combined table of GCVS Vols I-III and NL 67-78 with improved coordinates, General Catalogue of Variable Stars Geargiveer 20 Junie 2017 op Wayback Machine, Sternberg Astronomical Institute, Moskou, Rusland. Besoek op 2 November 2009.
5. ↑ Ducati, J. R. (2002). "VizieR Online Data Catalog: Catalogue of Stellar Photometry in Johnson's 11-color system". CDS/ADC Collection of Electronic Catalogues. 2237. Bibcode:2002yCat.2237....0D.
6. ↑ ^{6,0 6,1 6,2 6,3 6,4 6,5} Kochukhov, O.; Wade, G. A. (2010). "Magnetic Doppler imaging of α² Canum Venaticorum in all four Stokes parameters". Astronomy and Astrophysics. 513: A13. arXiv:1002.0025. Bibcode:2010A&A...513A..13K. doi:10.1051/0004-6361/200913860.
7. ↑ ^{7,0 7,1 7,2} Allende Prieto, C.; Lambert, D. L. (1999). "Fundamental parameters of nearby stars from the comparison with evolutionary calculations: masses, radii and effective temperatures". Astronomy and Astrophysics. 352: 555–562. arXiv:astro-ph/9911002. Bibcode:1999A&A...352..555A.
8. ↑ Royer, F.; Zorec, J.; Gómez, A. E. (2007). "Rotational velocities of A-type stars". Astronomy and Astrophysics. 463 (2): 671. arXiv:astro-ph/0610785. Bibcode:2007A&A...463..671R. doi:10.1051/0004-6361:20065224.
9. ↑ "IAU Catalog of Star Names" (in Engels). Geargiveer vanaf die oorspronklike op 20 April 2020. Besoek op 28 Julie 2016.