Back كبد الأسد (نجم) Arabic Cor Caroli AST Кор Кароли Bulgarian Cor Caroli Catalan Cor Caroli Czech Cor Caroli German Καρδία Καρόλου Greek Cor Caroli English Cor Caroli Spanish کور کارولی Persian
α Canum Venaticorum
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| 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. | ||||
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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).
- ↑ 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.
- ↑ 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.
- ↑ 3,0 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.
- ↑ 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.
- ↑ 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.
- ↑ 6,0 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.
- ↑ 7,0 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.
- ↑ 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.
- ↑ "IAU Catalog of Star Names" (in Engels). Geargiveer vanaf die oorspronklike op 20 April 2020. Besoek op 28 Julie 2016.