10 Leonis Minoris

	10 Leonis Minoris
Observationsdata; Epok: J2000.0
Stjärnbild	Lilla lejonet
Rektascension	09t 34m 13,38144s
Deklination	+36° 23′ 51,2163″
Skenbar magnitud ()	+4,54 (V)
Stjärntyp
Spektraltyp	G8.5 III
U–B	+0,61
B–V	+0,92
Variabeltyp	RS Canum Venaticorum-variabel
Astrometri
Radialhastighet ()	-11,94 km/s
Egenrörelse (µ)	RA: 7,280 mas/år; Dek.: -23,200 mas/år
Parallax ()	18,1458 ± 0,2345
Avstånd	180 ± 2 lå (55,1 ± 0,7 pc)
Absolut magnitud ()	0,83
Detaljer
Massa	2,54 M☉
Radie	9,20 R☉
Luminositet	51,4 L☉
Temperatur	5 099 K
Metallicitet	-0,04 dex
Vinkelhastighet	4,7 km/s
Andra beteckningar
	10 Lmi, AG+36 939, BD+37 2004, FK5 360, HD 82635, HIC 46952, HIP 46952, HR 3800, IRAS 09311+3637, IRC +40208, 2MASS J09341338+3623513, PPM 74607, 1RXS J093413.8+362406, SAO 61570, TD1 14046, TYC 2500-1532-1, uvby98 100082635, V* SU LMi, Gaia DR2 798883781282661248

10 Leonis Minoris, som är stjärnans Flamsteed-beteckning, är en ensam stjärna,^[12] belägen i den mellersta delen av stjärnbilden Lilla lejonet och har även variabelbeteckningen SU Leo Minoris. Den har en genomsnittlig skenbar magnitud av ca 4,54^[2] och är svagt synlig för blotta ögat där ljusföroreningar ej förekommer. Baserat på parallax enligt Gaia Data Release 2 på ca 18,1^[1] mas, beräknas den befinna sig på ett avstånd på ca 180 ljusår (ca 55 parsek) från solen. Den rör sig närmare solen med en heliocentrisk radialhastighet på ca -12 km/s.^[6]

Egenskaper

10 Leonis Minoris är en orange till gul jättestjärna av spektralklass G8.5 III.^[3] Den har en massa som är ca 2,5^[8] solmassor, en radie som är ca 9^[8] solradier och utsänder från dess fotosfär ca 51^[8] gånger mera energi än solen vid en effektiv temperatur av ca 5 100^[8] K.

10 Leonis Minoris är en RS Canum Venaticorum-variabel med en variation i magnitud med 0,02 enheter^[5] och visar en hög grad av kromosfärisk aktivitet.^[13]

Se även

Variabel stjärna

Referenser

Den här artikeln är helt eller delvis baserad på material från engelskspråkiga Wikipedia, 10 Leonis Minoris, 20 april 2020.

Noter

^ [a b c d e f] Brown, A. G. A.; et al. (Gaia collaboration) (August 2018). "Gaia Data Release 2: Summary of the contents and survey properties". Astronomy & Astrophysics. 616. A1. arXiv:1804.09365. Bibcode:2018A&A...616A...1G. doi:10.1051/0004-6361/201833051. Gaia DR2 record for this source at VizieR.
^ [a b] Anderson, E.; Francis, Ch. (2012). "XHIP: An extended hipparcos compilation". Astronomy Letters. 38 (5): 331. arXiv:1108.4971. Bibcode:2012AstL...38..331A. doi:10.1134/S1063773712050015. Vizier catalog entry
^ [a b] 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.
^ [a b] Mermilliod, J. C. (2006). "VizieR Online Data Catalog: Homogeneous Means in the UBV System (Mermilliod 1991)". VizieR On-line Data Catalog: II/168. Originally Published in: Institut d'Astronomie. 2168. Bibcode:2006yCat.2168....0M.Vizier catalog entry
^ [a b] Watson, C. L. (2006). "The International Variable Star Index (VSX)". The Society for Astronomical Sciences 25th Annual Symposium on Telescope Science. Held May 23–25. 25: 47. Bibcode:2006SASS...25...47W.
^ [a b] 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.
^ Da Silva, Ronaldo; Milone, André de C.; Rocha-Pinto, Helio J. (2015). "Homogeneous abundance analysis of FGK dwarf, subgiant, and giant stars with and without giant planets". Astronomy & Astrophysics. 580: A24. arXiv:1505.01726. Bibcode:2015A&A...580A..24D. doi:10.1051/0004-6361/201525770. Vizier catalog entry
^ [a b c d e f g h] Reffert, Sabine; Bergmann, Christoph; Quirrenbach, Andreas; Trifonov, Trifon; Künstler, Andreas (2015). "Precise radial velocities of giant stars". Astronomy & Astrophysics. 574: A116. arXiv:1412.4634. Bibcode:2015A&A...574A.116R. doi:10.1051/0004-6361/201322360. hdl:10722/215277. Vizier catalog entry
^ Wu, Yue; Singh, H. P.; Prugniel, P.; Gupta, R.; Koleva, M. (2010). "Coudé-feed stellar spectral library – atmospheric parameters". Astronomy & Astrophysics. 525: A71. arXiv:1009.1491. Bibcode:2011A&A...525A..71W. doi:10.1051/0004-6361/201015014.
^ De Medeiros, J. R.; Alves, S.; Udry, S.; Andersen, J.; Nordström, B.; Mayor, M. (2014). "A catalog of rotational and radial velocities for evolved stars". Astronomy & Astrophysics. 561: A126. arXiv:1312.3474. Bibcode:2014A&A...561A.126D. doi:10.1051/0004-6361/201220762. Vizier catalog entry
^ "10 LMi". SIMBAD. Centre de données astronomiques de Strasbourg. Hämtad 27 april 2019.
^ Eggleton, P. P.; Tokovinin, A. A. (September 2008). "A catalogue of multiplicity among bright stellar systems". Monthly Notices of the Royal Astronomical Society. 389 (2): 869–879. arXiv:0806.2878. Bibcode:2008MNRAS.389..869E. doi:10.1111/j.1365-2966.2008.13596.x.
^ Strassmeier, K. G.; et al. (January 1994). "Chromospheric activity in G an K giants and their rotation-activity relation". Astronomy and Astrophysics. 281: 855–863. Bibcode:1994A&A...281..855S.

Externa länkar

https://www.universeguide.com/star/10leonisminoris

[A-1] [a b c d e f] Brown, A. G. A.; et al. (Gaia collaboration) (August 2018). "Gaia Data Release 2: Summary of the contents and survey properties". Astronomy & Astrophysics. 616. A1. arXiv:1804.09365. Bibcode:2018A&A...616A...1G. doi:10.1051/0004-6361/201833051. Gaia DR2 record for this source at VizieR.

[B-2] [a b] Anderson, E.; Francis, Ch. (2012). "XHIP: An extended hipparcos compilation". Astronomy Letters. 38 (5): 331. arXiv:1108.4971. Bibcode:2012AstL...38..331A. doi:10.1134/S1063773712050015. Vizier catalog entry

[C-3] [a b] 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.

[D-4] [a b] Mermilliod, J. C. (2006). "VizieR Online Data Catalog: Homogeneous Means in the UBV System (Mermilliod 1991)". VizieR On-line Data Catalog: II/168. Originally Published in: Institut d'Astronomie. 2168. Bibcode:2006yCat.2168....0M.Vizier catalog entry

[E-5] [a b] Watson, C. L. (2006). "The International Variable Star Index (VSX)". The Society for Astronomical Sciences 25th Annual Symposium on Telescope Science. Held May 23–25. 25: 47. Bibcode:2006SASS...25...47W.

[F-6] [a b] 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.

[G-7] Da Silva, Ronaldo; Milone, André de C.; Rocha-Pinto, Helio J. (2015). "Homogeneous abundance analysis of FGK dwarf, subgiant, and giant stars with and without giant planets". Astronomy & Astrophysics. 580: A24. arXiv:1505.01726. Bibcode:2015A&A...580A..24D. doi:10.1051/0004-6361/201525770. Vizier catalog entry

[H-8] [a b c d e f g h] Reffert, Sabine; Bergmann, Christoph; Quirrenbach, Andreas; Trifonov, Trifon; Künstler, Andreas (2015). "Precise radial velocities of giant stars". Astronomy & Astrophysics. 574: A116. arXiv:1412.4634. Bibcode:2015A&A...574A.116R. doi:10.1051/0004-6361/201322360. hdl:10722/215277. Vizier catalog entry

[I-9] Wu, Yue; Singh, H. P.; Prugniel, P.; Gupta, R.; Koleva, M. (2010). "Coudé-feed stellar spectral library – atmospheric parameters". Astronomy & Astrophysics. 525: A71. arXiv:1009.1491. Bibcode:2011A&A...525A..71W. doi:10.1051/0004-6361/201015014.

[J-10] De Medeiros, J. R.; Alves, S.; Udry, S.; Andersen, J.; Nordström, B.; Mayor, M. (2014). "A catalog of rotational and radial velocities for evolved stars". Astronomy & Astrophysics. 561: A126. arXiv:1312.3474. Bibcode:2014A&A...561A.126D. doi:10.1051/0004-6361/201220762. Vizier catalog entry

[K-11] "10 LMi". SIMBAD. Centre de données astronomiques de Strasbourg. Hämtad 27 april 2019.

[L-12] Eggleton, P. P.; Tokovinin, A. A. (September 2008). "A catalogue of multiplicity among bright stellar systems". Monthly Notices of the Royal Astronomical Society. 389 (2): 869–879. arXiv:0806.2878. Bibcode:2008MNRAS.389..869E. doi:10.1111/j.1365-2966.2008.13596.x.

[M-13] Strassmeier, K. G.; et al. (January 1994). "Chromospheric activity in G an K giants and their rotation-activity relation". Astronomy and Astrophysics. 281: 855–863. Bibcode:1994A&A...281..855S.

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Observationsdata Epok: J2000.0
10 Leonis Minoris

Stjärnbild	Lilla lejonet
Rektascension	09^t 34^m 13,38144^s^[1]
Deklination	+36° 23′ 51,2163″^[1]
Skenbar magnitud ( $V$ )	+4,54 (V)^[2]
Stjärntyp
Spektraltyp	G8.5 III^[3]
U–B	+0,61^[4]
B–V	+0,92^[4]
Variabeltyp	RS Canum Venaticorum-variabel^[5]
Astrometri
Radialhastighet ( $R_{v}$ )	-11,94^[6] km/s
Egenrörelse (µ)	RA: 7,280^[1] mas/år Dek.: -23,200^[1] mas/år
Parallax ( $\pi$ )	18,1458 ± 0,2345^[1]
Avstånd	180 ± 2 lå (55,1 ± 0,7 pc)
Absolut magnitud ( $M_{V}$ )	0,83^[7]
Detaljer
Massa	2,54^[8] M_☉
Radie	9,20^[8] R_☉
Luminositet	51,4^[8] L_☉
Temperatur	5 099^[8] K
Metallicitet	-0,04^[9] dex
Vinkelhastighet	4,7^[10] km/s
Andra beteckningar
10 Lmi, AG+36 939, BD+37 2004, FK5 360, HD 82635, HIC 46952, HIP 46952, HR 3800, IRAS 09311+3637, IRC +40208, 2MASS J09341338+3623513, PPM 74607, 1RXS J093413.8+362406, SAO 61570, TD1 14046, TYC 2500-1532-1, uvby98 100082635, V* SU LMi, Gaia DR2 798883781282661248 ^[11]