HD 80194

	HD 80194
Observationsdata; Epok: J2000.0
Stjärnbild	Kameleonten
Rektascension	09t 12m 12,3671 s
Deklination	-76° 39′ 46,9007 ″
Skenbar magnitud ()	6,12 ± 0,01
Stjärntyp
Spektraltyp	K1 III
U–B	+0,99
B–V	+1,09
Astrometri
Radialhastighet ()	+0,9 ± 0,4 km/s
Egenrörelse (µ)	RA: +39,844 mas/år; Dek.: -43,834 mas/år
Parallax ()	9,2743 ± 0,02
Avstånd	351,7 ± 0,8 lå (107,8 ± 0,2 pc)
Absolut magnitud ()	+0,75
Detaljer
Massa	1,15 M☉
Radie	9,82 R☉
Luminositet	47 ± 2 L☉
Temperatur	4 798 ± 122 K
Metallicitet	-0,09
Vinkelhastighet	<1 km/s
Andra beteckningar
	12 G. Charameleontis, GC 12766, HD 80194, CD-76 416, CPD-76 574, FK5 2735, GSC 09395-02521, HIC 45166, HIP 45166, HR 3695, IRAS 09127-7627, 2MASS J09121238-7639469, PPM 370233, SAO 256594, TYC 9395-2521-1, Gaia DR2 5215370614213352832, Gaia DR3 5215370614213352832, Gaia DR1 5215370609916982528

HD 80194 eller HR 3695, är en ensam stjärna i norra delen av stjärnbilden Kameleonten. Den har en skenbar magnitud av ca 6,12^[2] och är mycket svagt synlig för blotta ögat där ljusföroreningar ej förekommer. Baserat på parallax enligt Gaia Data Release 3 på ca 9,3 mas,^[1] beräknas den befinna sig på ett avstånd på ca 352 ljusår (ca 108 parsek) från solen. Den rör sig bort från solen med en heliocentrisk radialhastighet på ca 1 km/s.^[5]

Egenskaper[redigera | redigera wikitext]

HD 80194 är en orange till gul jättestjärna av spektralklass K1 III,^[3] som befinner sig på kalla änden av horisontella jättegrenen och tros ingå i röda klumpen.^[16] Den har förbrukat förrådet av väte i dess kärna och genererar energi genom kärnfusion av helium i kärnan.^[16] Den har en massa som är ca 1,2^[7] solmassa, en radie som är ca 9,8^[8] solradier och har ca 47 gånger solens utstrålning av energi^[9] från dess fotosfär vid en effektiv temperatur av ca 4 800 K.^[10]

Referenser[redigera | redigera wikitext]

Den här artikeln är helt eller delvis baserad på material från engelskspråkiga Wikipedia, HD 80194, 27 november 2022.

Noter[redigera | redigera wikitext]

^ [a b c d e f] Brown, A. G. A.; et al. (Gaia collaboration) (2021). "Gaia Early Data Release 3: Summary of the contents and survey properties". Astronomy & Astrophysics. 649: A1. arXiv:2012.01533. Bibcode:2021A&A...649A...1G. doi:10.1051/0004-6361/202039657. S2CID 227254300. (Erratum: doi:10.1051/0004-6361/202039657e). Gaia EDR3 record for this source at VizieR.
^ [a b] Høg, E.; Fabricius, C.; Makarov, V. V.; Urban, S.; Corbin, T.; Wycoff, G.; Bastian, U.; Schwekendiek, P.; Wicenec, A. (March 2000). "The Tycho-2 catalogue of the 2.5 million brightest stars". Astronomy and Astrophysics. 355: L27–L30. Bibcode:2000A&A...355L..27H. ISSN 0004-6361.
^ [a b] Houk, N.; Cowley, A. P. (1975). University of Michigan Catalogue of two-dimensional spectral types for the HD stars. Volume I. Declinations -90_ to -53_ƒ0. Bibcode:1975mcts.book.....H.
^ [a b] Johnson, H. L.; Mitchell, R. I.; Iriarte, B.; Wisniewski, W. Z. (1966). "UBVRIJKL Photometry of the Bright Stars". Communications of the Lunar and Planetary Laboratory. 4: 99–110. Bibcode:1966CoLPL...4...99J.
^ [a b] Gontcharov, G. A. (November 2006). "Pulkovo Compilation of Radial Velocities for 35 495 Hipparcos stars in a common system". Astronomy Letters. 32 (11): 759–771. arXiv:1606.08053. Bibcode:2006AstL...32..759G. doi:10.1134/S1063773706110065. ISSN 1063-7737. S2CID 119231169.
^ Anderson, E.; Francis, Ch. (May 2012). "XHIP: An extended hipparcos compilation". Astronomy Letters. 38 (5): 331–346. arXiv:1108.4971. Bibcode:2012AstL...38..331A. doi:10.1134/S1063773712050015. ISSN 1063-7737. S2CID 119257644.
^ [a b] Anderson, E.; Francis, Ch. (May 2012). "XHIP: An extended hipparcos compilation". Astronomy Letters. 38 (5): 331–346. arXiv:1108.4971. Bibcode:2012AstL...38..331A. doi:10.1134/S1063773712050015. ISSN 1063-7737. S2CID 119257644.
^ [a b] Kervella, Pierre; Arenou, Frédéric; Thévenin, Frédéric (2022). "Stellar and substellar companions from Gaia EDR3". Astronomy & Astrophysics. 657: A7. arXiv:2109.10912. Bibcode:2022A&A...657A...7K. doi:10.1051/0004-6361/202142146. eISSN 1432-0746. ISSN 0004-6361.
^ [a b] Charbonnel, C.; Lagarde, N.; Jasniewicz, G.; North, P. L.; Shetrone, M.; Krugler Hollek, J.; Smith, V. V.; Smiljanic, R.; Palacios, A.; Ottoni, G. (January 2020). "Lithium in red giant stars: Constraining non-standard mixing with large surveys in the Gaia era". Astronomy & Astrophysics. 633: A34. arXiv:1910.12732. Bibcode:2020A&A...633A..34C. doi:10.1051/0004-6361/201936360. eISSN 1432-0746. ISSN 0004-6361.
^ [a b] Stassun, Keivan G.; et al. (9 September 2019). "The Revised TESS Input Catalog and Candidate Target List". The Astronomical Journal. 158 (4): 138. arXiv:1905.10694. Bibcode:2019AJ....158..138S. doi:10.3847/1538-3881/ab3467. ISSN 0004-6256.
^ Eggen, O. J. (July 1993). "Evolved GK stars near the sun. I - The old disk population". The Astronomical Journal. 106: 80. Bibcode:1993AJ....106...80E. doi:10.1086/116622.
^ De Medeiros, J. R.; Alves, S.; Udry, S.; Andersen, J.; Nordström, B.; Mayor, M. (January 2014). "A catalog of rotational and radial velocities for evolved stars: V. Southern stars⋆⋆⋆". Astronomy & Astrophysics. 561: A126. arXiv:1312.3474. Bibcode:2014A&A...561A.126D. doi:10.1051/0004-6361/201220762. ISSN 0004-6361.
^ HR 3695 (unistra.fr). Hämtad 2022-12-21.
^ "HD 80194". SIMBAD. Centre de données astronomiques de Strasbourg. Hämtad 6 juni 2022.
^ Gould, Benjamin Apthorp (1878). "Uranometria Argentina : brillantez y posicion de las estrellas fijas, hasta la septima magnitud, comprendidas dentro de cien grados del polo austral : con atlas". Resultados del Observatorio Nacional Argentino. 1. Bibcode:1879RNAO....1.....G.
^ [a b] Laney, C. D.; Joner, M. D.; Pietrzyński, G. (11 November 2011). "A new Large Magellanic Cloud K-band distance from precision measurements of nearby red clump stars". Monthly Notices of the Royal Astronomical Society. 419 (2): 1637–1641. arXiv:1109.4800. Bibcode:2012MNRAS.419.1637L. doi:10.1111/j.1365-2966.2011.19826.x. ISSN 0035-8711.

Externa länkar[redigera | redigera wikitext]

https://www.universeguide.com/star/45166/hd80194.

[A-1] [a b c d e f] Brown, A. G. A.; et al. (Gaia collaboration) (2021). "Gaia Early Data Release 3: Summary of the contents and survey properties". Astronomy & Astrophysics. 649: A1. arXiv:2012.01533. Bibcode:2021A&A...649A...1G. doi:10.1051/0004-6361/202039657. S2CID 227254300. (Erratum: doi:10.1051/0004-6361/202039657e). Gaia EDR3 record for this source at VizieR.

[B-2] [a b] Høg, E.; Fabricius, C.; Makarov, V. V.; Urban, S.; Corbin, T.; Wycoff, G.; Bastian, U.; Schwekendiek, P.; Wicenec, A. (March 2000). "The Tycho-2 catalogue of the 2.5 million brightest stars". Astronomy and Astrophysics. 355: L27–L30. Bibcode:2000A&A...355L..27H. ISSN 0004-6361.

[D-3] [a b] Houk, N.; Cowley, A. P. (1975). University of Michigan Catalogue of two-dimensional spectral types for the HD stars. Volume I. Declinations -90_ to -53_ƒ0. Bibcode:1975mcts.book.....H.

[E-4] [a b] Johnson, H. L.; Mitchell, R. I.; Iriarte, B.; Wisniewski, W. Z. (1966). "UBVRIJKL Photometry of the Bright Stars". Communications of the Lunar and Planetary Laboratory. 4: 99–110. Bibcode:1966CoLPL...4...99J.

[F-5] [a b] Gontcharov, G. A. (November 2006). "Pulkovo Compilation of Radial Velocities for 35 495 Hipparcos stars in a common system". Astronomy Letters. 32 (11): 759–771. arXiv:1606.08053. Bibcode:2006AstL...32..759G. doi:10.1134/S1063773706110065. ISSN 1063-7737. S2CID 119231169.

[G-6] Anderson, E.; Francis, Ch. (May 2012). "XHIP: An extended hipparcos compilation". Astronomy Letters. 38 (5): 331–346. arXiv:1108.4971. Bibcode:2012AstL...38..331A. doi:10.1134/S1063773712050015. ISSN 1063-7737. S2CID 119257644.

[H-7] [a b] Anderson, E.; Francis, Ch. (May 2012). "XHIP: An extended hipparcos compilation". Astronomy Letters. 38 (5): 331–346. arXiv:1108.4971. Bibcode:2012AstL...38..331A. doi:10.1134/S1063773712050015. ISSN 1063-7737. S2CID 119257644.

[I-8] [a b] Kervella, Pierre; Arenou, Frédéric; Thévenin, Frédéric (2022). "Stellar and substellar companions from Gaia EDR3". Astronomy & Astrophysics. 657: A7. arXiv:2109.10912. Bibcode:2022A&A...657A...7K. doi:10.1051/0004-6361/202142146. eISSN 1432-0746. ISSN 0004-6361.

[J-9] [a b] Charbonnel, C.; Lagarde, N.; Jasniewicz, G.; North, P. L.; Shetrone, M.; Krugler Hollek, J.; Smith, V. V.; Smiljanic, R.; Palacios, A.; Ottoni, G. (January 2020). "Lithium in red giant stars: Constraining non-standard mixing with large surveys in the Gaia era". Astronomy & Astrophysics. 633: A34. arXiv:1910.12732. Bibcode:2020A&A...633A..34C. doi:10.1051/0004-6361/201936360. eISSN 1432-0746. ISSN 0004-6361.

[K-10] [a b] Stassun, Keivan G.; et al. (9 September 2019). "The Revised TESS Input Catalog and Candidate Target List". The Astronomical Journal. 158 (4): 138. arXiv:1905.10694. Bibcode:2019AJ....158..138S. doi:10.3847/1538-3881/ab3467. ISSN 0004-6256.

[L-11] Eggen, O. J. (July 1993). "Evolved GK stars near the sun. I - The old disk population". The Astronomical Journal. 106: 80. Bibcode:1993AJ....106...80E. doi:10.1086/116622.

[M-12] De Medeiros, J. R.; Alves, S.; Udry, S.; Andersen, J.; Nordström, B.; Mayor, M. (January 2014). "A catalog of rotational and radial velocities for evolved stars: V. Southern stars⋆⋆⋆". Astronomy & Astrophysics. 561: A126. arXiv:1312.3474. Bibcode:2014A&A...561A.126D. doi:10.1051/0004-6361/201220762. ISSN 0004-6361.

[SIMBAD-13] HR 3695 (unistra.fr). Hämtad 2022-12-21.

[N-14] "HD 80194". SIMBAD. Centre de données astronomiques de Strasbourg. Hämtad 6 juni 2022.

[O-15] Gould, Benjamin Apthorp (1878). "Uranometria Argentina : brillantez y posicion de las estrellas fijas, hasta la septima magnitud, comprendidas dentro de cien grados del polo austral : con atlas". Resultados del Observatorio Nacional Argentino. 1. Bibcode:1879RNAO....1.....G.

[C-16] [a b] Laney, C. D.; Joner, M. D.; Pietrzyński, G. (11 November 2011). "A new Large Magellanic Cloud K-band distance from precision measurements of nearby red clump stars". Monthly Notices of the Royal Astronomical Society. 419 (2): 1637–1641. arXiv:1109.4800. Bibcode:2012MNRAS.419.1637L. doi:10.1111/j.1365-2966.2011.19826.x. ISSN 0035-8711.

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Observationsdata Epok: J2000.0
HD 80194

Stjärnbild	Kameleonten
Rektascension	09^t 12^m 12,3671 ^s^[1]
Deklination	-76° 39′ 46,9007 ″^[1]
Skenbar magnitud ( $V$ )	6,12 ± 0,01^[2]
Stjärntyp
Spektraltyp	K1 III^[3]
U–B	+0,99^[4]
B–V	+1,09^[4]
Astrometri
Radialhastighet ( $R_{v}$ )	+0,9 ± 0,4^[5] km/s
Egenrörelse (µ)	RA: +39,844^[1] mas/år Dek.: -43,834^[1] mas/år
Parallax ( $\pi$ )	9,2743 ± 0,02^[1]
Avstånd	351,7 ± 0,8 lå (107,8 ± 0,2 pc)
Absolut magnitud ( $M_{V}$ )	+0,75^[6]
Detaljer
Massa	1,15^[7] M_☉
Radie	9,82^[8] R_☉
Luminositet	47 ± 2^[9] L_☉
Temperatur	4 798 ± 122^[10] K
Metallicitet	-0,09^[11]
Vinkelhastighet	<1^[12] km/s
Andra beteckningar
12 G. Charameleontis, GC 12766, HD 80194, CD-76 416, CPD-76 574, FK5 2735, GSC 09395-02521, HIC 45166, HIP 45166, HR 3695, IRAS 09127-7627, 2MASS J09121238-7639469, PPM 370233, SAO 256594, TYC 9395-2521-1, Gaia DR2 5215370614213352832, Gaia DR3 5215370614213352832, Gaia DR1 5215370609916982528^[13]^[14]^[15]