V803 Centauri

	V803 Centauri
Observationsdata; Epok: J2000.0
Stjärnbild	Kentauren
Rektascension	13t 23m 44,54 s
Deklination	-41° 44′ 29,5 ″
Skenbar magnitud ()	13,2
Stjärntyp
Spektraltyp	pec
U–B	-0,9 - -1,0
B–V	+0,1
Variabeltyp	AM Canum Venaticorum-variabel
Astrometri
Egenrörelse (µ)	RA: -3,907 ± 0,051 mas/år; Dek.: +11,978 ± 0,061 mas/år
Avstånd	347 ± lå
Absolut magnitud ()	+5,93
Detaljer
Massa	0,9-1,2/0,06-0,11 M☉
Andra beteckningar
	RX J132345.4-414433, NAME AE 1, V* V803 Centauri, AAVSO 1317-41, CRTS J132344.5-414429, 1RXS J132345.3-414428, 2XMM J132344.6-414429, Gaia DR3 6137049739573759872, 2MASS J13234454-4144294, TIC 30988774, [A94] 20, Gaia DR2 6137049735276947584

V803 Centauri är en dubbelstjärna i mellersta delen av stjärnbilden Kentauren. Den har en genomsnittlig skenbar magnitud av ca 13,2^[3] och kräver ett kraftfullt teleskop för att kunna observeras. Baserat på parallaxmätning inom Hipparcosuppdraget på ca 3,5 mas,^[6] beräknas den befinna sig på ett avstånd på ca 347 ljusår^[5] från solen.

Egenskaper

Tre ljuskurvor för V803 Centauri, på tre tidsskalor, timmar (diagram A), dagar (diagram B) och år (diagram C). (2000),^[7]Kato et al. (2004)^[8] och Levitan et al. (2015)^[9]

V803 Centauri är en kataklysmisk dubbelstjärna bestående av en dvärgheliumstjärna som förlorar massa till en vit dvärg. Den är ett exempel på AM Canum Venaticorum-typen av kataklysmiska variabla stjärnor.^[7]

Referenser

Den här artikeln är helt eller delvis baserad på material från engelskspråkiga Wikipedia, V803 Centauri, 10 december 2021.

Noter

^ Cutri, Roc M.; et al. (2003). "VizieR Online Data Catalog: 2MASS All-Sky Catalog of Point Sources (Cutri+ 2003)". CDS/ADC Collection of Electronic Catalogues. 2246: II/246. Bibcode:2003yCat.2246....0C.
^ Cutri, Roc M.; et al. (2003). "VizieR Online Data Catalog: 2MASS All-Sky Catalog of Point Sources (Cutri+ 2003)". VizieR On-line Data Catalog: II/246. Originally Published in: 2003yCat.2246....0C. 2246: 0. Bibcode:2003yCat.2246....0C.
^ [a b] amus', N. N.; Goranskii, V. P.; Durlevich, O. V.; Zharova, A. V.; Kazarovets, E. V.; Kireeva, N. N.; Pastukhova, E. N.; Williams, D. B.; Hazen, M. L. (2003). "An Electronic Version of the Second Volume of the General Catalogue of Variable Stars with Improved Coordinates". Astronomy Letters. 29 (7): 468. Bibcode:2003AstL...29..468S. doi:10.1134/1.1589864. S2CID 16299532.
^ Elvius, A. (1975). "Variable blue object with a peculiar spectrum". Astronomy and Astrophysics. 44: 117. Bibcode:1975A&A....44..117E.
^ [a b c d e] Solheim, J.-E. (2010). "AM CVn Stars: Status and Challenges". Publications of the Astronomical Society of the Pacific. 122 (896): 1133–1163. Bibcode:2010PASP..122.1133S. doi:10.1086/656680.
^ [a b c d] V803 Cen (unistra.fr). Hämtad 2023-01-06.
^ [a b] Patterson, Joseph; Walker, Stan; Kemp, Jonathan; O'Donoghue, Darragh; Bos, Marc; Stubbings, Rod (2000). "V803 Centauri: A Helium‐rich Dwarf Nova". Publications of the Astronomical Society of the Pacific. The University of Chicago Press on behalf of the Astronomical Society of the Pacific. 112 (771): 625–631. Bibcode:2000PASP..112..625P. doi:10.1086/316561. JSTOR 316561.
^ Kato, Taichi; Stubbings, Rod; Monard, Berto; Butterworth, Neil D.; Bolt, Greg; Richards, Tom (March 25, 2004). "V803 Centauri: Helium Dwarf Nova Mimicking a WZ Sge-Type Superoutburst". Publications of the Astronomical Society of Japan. 56: S89–S98. doi:10.1093/pasj/56.sp1.S89. Hämtad 2 december 2021.
^ Levitan, David; Groot, Paul J.; Prince, Thomas A.; Kulkarni, Shrinivas R.; Laher, Russ; Ofek, Eran O.; Sesar, Branimir; Surace, Jason (January 2015). "Long-term photometric behaviour of outbursting AM CVn systems". Monthly Notices of the Royal Astronomical Society. 446 (1): 391–410. doi:10.1093/mnras/stu2105. Hämtad 2 december 2021.

Externa länkar

https://www.universeguide.com/star/124035/v803centauri.

[D-1] Cutri, Roc M.; et al. (2003). "VizieR Online Data Catalog: 2MASS All-Sky Catalog of Point Sources (Cutri+ 2003)". CDS/ADC Collection of Electronic Catalogues. 2246: II/246. Bibcode:2003yCat.2246....0C.

[E-2] Cutri, Roc M.; et al. (2003). "VizieR Online Data Catalog: 2MASS All-Sky Catalog of Point Sources (Cutri+ 2003)". VizieR On-line Data Catalog: II/246. Originally Published in: 2003yCat.2246....0C. 2246: 0. Bibcode:2003yCat.2246....0C.

[F-3] [a b] amus', N. N.; Goranskii, V. P.; Durlevich, O. V.; Zharova, A. V.; Kazarovets, E. V.; Kireeva, N. N.; Pastukhova, E. N.; Williams, D. B.; Hazen, M. L. (2003). "An Electronic Version of the Second Volume of the General Catalogue of Variable Stars with Improved Coordinates". Astronomy Letters. 29 (7): 468. Bibcode:2003AstL...29..468S. doi:10.1134/1.1589864. S2CID 16299532.

[G-4] Elvius, A. (1975). "Variable blue object with a peculiar spectrum". Astronomy and Astrophysics. 44: 117. Bibcode:1975A&A....44..117E.

[H-5] [a b c d e] Solheim, J.-E. (2010). "AM CVn Stars: Status and Challenges". Publications of the Astronomical Society of the Pacific. 122 (896): 1133–1163. Bibcode:2010PASP..122.1133S. doi:10.1086/656680.

[SIMBAD-6] [a b c d] V803 Cen (unistra.fr). Hämtad 2023-01-06.

[A-7] [a b] Patterson, Joseph; Walker, Stan; Kemp, Jonathan; O'Donoghue, Darragh; Bos, Marc; Stubbings, Rod (2000). "V803 Centauri: A Helium‐rich Dwarf Nova". Publications of the Astronomical Society of the Pacific. The University of Chicago Press on behalf of the Astronomical Society of the Pacific. 112 (771): 625–631. Bibcode:2000PASP..112..625P. doi:10.1086/316561. JSTOR 316561.

[B-8] Kato, Taichi; Stubbings, Rod; Monard, Berto; Butterworth, Neil D.; Bolt, Greg; Richards, Tom (March 25, 2004). "V803 Centauri: Helium Dwarf Nova Mimicking a WZ Sge-Type Superoutburst". Publications of the Astronomical Society of Japan. 56: S89–S98. doi:10.1093/pasj/56.sp1.S89. Hämtad 2 december 2021.

[C-9] Levitan, David; Groot, Paul J.; Prince, Thomas A.; Kulkarni, Shrinivas R.; Laher, Russ; Ofek, Eran O.; Sesar, Branimir; Surace, Jason (January 2015). "Long-term photometric behaviour of outbursting AM CVn systems". Monthly Notices of the Royal Astronomical Society. 446 (1): 391–410. doi:10.1093/mnras/stu2105. Hämtad 2 december 2021.

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