15 Orionis

15 Orionis
	[[Fil: \|frameless\|]]; Location of 15 Orionis (circled)
	Observasjonsdata; Epoke J2000
Stjernebilde	Orion
Rektascensjon	05t 09m 41.95770s
Deklinasjon	15° 35′ 50.0410″
Tilsynelatende; størrelsesklasse (V)	4.82
	Karakteristikk
Spektralklasse	F2IV
Fargeindeks U–B	+0.19
Fargeindeks B–V	+0.32
	Astrometri
Radialhastighet (Rv)	+28.79 km/s
Egenbevegelse (μ)	RA: -2.71 mas/år; DEK: -15.75 mas/år
Parallakse (π)	6.06 ± 1.97 mas
Avstand	ca. 500 ly ; (ca. 170 pc)
Absolutt størrelsesklasse (MV)	-0.04
	Detaljer
Masse	3.42 M☉
Radius	5.9 R☉
Overflategravitasjon; (log g)	3.75
Luminositet	300 L☉
Temperatur	7,161 K
Metallisitet [Fe/H]	+0.21 dex
Rotasjonshastighet (v sin i)	59,8 kilometer per sekund
	Andre betegnelser
	BD+15°752, CCDM J05097+1536AB, GC 6306, HIP 24010, HR 1676, HD 33276, SAO 94359, WDS J05097+1536AB
	Referansedatabaser
SIMBAD	«data».

15 Orionis er den sørlige polarstjernen til Uranus. Den er en tidlig subkjempe F-type som ligger 318 lysår fra solsystemet.

Referanser

^ ^a ^b ^c ^d ^e Van Leeuwen, F. (2007). «Validation of the new Hipparcos reduction». Astronomy and Astrophysics. 474 (2): 653. Bibcode:2007A&A...474..653V. arXiv:0708.1752 . doi:10.1051/0004-6361:20078357. Vizier catalog entry
^ ^a ^b ^c 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.
^ Hoffleit, D.; Warren, W. H. (1995). «VizieR Online Data Catalog: Bright Star Catalogue, 5th Revised Ed. (Hoffleit+, 1991)». VizieR On-line Data Catalog: V/50. Originally published in: 1964BS....C......0H. 5050. Bibcode:1995yCat.5050....0H.
^ Massarotti, Alessandro; Latham, David W.; Stefanik, Robert P.; Fogel, Jeffrey (2008). «Rotational and Radial Velocities for a Sample of 761 Hipparcos Giants and the Role of Binarity». The Astronomical Journal. 135: 209. Bibcode:2008AJ....135..209M. doi:10.1088/0004-6256/135/1/209.
^ Anderson, E.; Francis, Ch. (2012). «XHIP: An extended hipparcos compilation». Astronomy Letters. 38 (5): 331. Bibcode:2012AstL...38..331A. arXiv:1108.4971 . doi:10.1134/S1063773712050015. Vizier catalog entry
^ ^a ^b ^c Zorec, J.; Royer, F. (2012). «Rotational velocities of A-type stars». Astronomy & Astrophysics. 537: A120. Bibcode:2012A&A...537A.120Z. arXiv:1201.2052 . doi:10.1051/0004-6361/201117691. Vizier catalog entry
^ 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. Bibcode:1999A&A...352..555A. arXiv:astro-ph/9911002 . Vizier catalog entry
^ ^a ^b Wu, Yue; Singh, H. P.; Prugniel, P.; Gupta, R.; Koleva, M. (2010). «Coudé-feed stellar spectral library – atmospheric parameters». Astronomy & Astrophysics. 525: A71. Bibcode:2011A&A...525A..71W. arXiv:1009.1491 . doi:10.1051/0004-6361/201015014.

Eksterne lenker

HD 33276

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Autoritetsdata

[vanLeeuwen2007-1] Van Leeuwen, F. (2007). «Validation of the new Hipparcos reduction». Astronomy and Astrophysics. 474 (2): 653. Bibcode:2007A&A...474..653V. arXiv:0708.1752 . doi:10.1051/0004-6361:20078357. Vizier catalog entry

[Ducati2002-2] 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.

[Hoffleit1991-3] Hoffleit, D.; Warren, W. H. (1995). «VizieR Online Data Catalog: Bright Star Catalogue, 5th Revised Ed. (Hoffleit+, 1991)». VizieR On-line Data Catalog: V/50. Originally published in: 1964BS....C......0H. 5050. Bibcode:1995yCat.5050....0H.

[Massarotti2008-4] Massarotti, Alessandro; Latham, David W.; Stefanik, Robert P.; Fogel, Jeffrey (2008). «Rotational and Radial Velocities for a Sample of 761 Hipparcos Giants and the Role of Binarity». The Astronomical Journal. 135: 209. Bibcode:2008AJ....135..209M. doi:10.1088/0004-6256/135/1/209.

[XHIP-5] Anderson, E.; Francis, Ch. (2012). «XHIP: An extended hipparcos compilation». Astronomy Letters. 38 (5): 331. Bibcode:2012AstL...38..331A. arXiv:1108.4971 . doi:10.1134/S1063773712050015. Vizier catalog entry

[Zorec2012-6] Zorec, J.; Royer, F. (2012). «Rotational velocities of A-type stars». Astronomy & Astrophysics. 537: A120. Bibcode:2012A&A...537A.120Z. arXiv:1201.2052 . doi:10.1051/0004-6361/201117691. Vizier catalog entry

[AllendePrieto-7] 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. Bibcode:1999A&A...352..555A. arXiv:astro-ph/9911002 . Vizier catalog entry

[Wu2011-8] Wu, Yue; Singh, H. P.; Prugniel, P.; Gupta, R.; Koleva, M. (2010). «Coudé-feed stellar spectral library – atmospheric parameters». Astronomy & Astrophysics. 525: A71. Bibcode:2011A&A...525A..71W. arXiv:1009.1491 . doi:10.1051/0004-6361/201015014.

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15 Orionis

Referanser

Eksterne lenker

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