HD 46568

	HD 46568
Observationsdata; Epok: J2000.0
Stjärnbild	Duvan
Rektascension	06t 32m 21,3775s
Deklination	-37° 41′ 48,2053″
Skenbar magnitud ()	+5,25 ± 0,01
Stjärntyp
Spektraltyp	G8 III
U–B	+0,75
B–V	+0,98
Astrometri
Radialhastighet ()	+39 ± 1 km/s
Egenrörelse (µ)	RA: +73,075 mas/år; Dek.: -75,599 mas/år
Parallax ()	11,4692 ± 0,0782
Avstånd	284 ± 2 lå (87,2 ± 0,6 pc)
Absolut magnitud ()	+0,64
Detaljer
Massa	1,94 ± 0,11 M☉
Radie	10,66 ± 0,18 R☉
Luminositet	60,7 ± 1,4 L☉
Temperatur	4 935 ± 29 K
Metallicitet	-0,16 ± 0,02 (Fe/H) dex
Vinkelhastighet	1,2 ± 1,2 km/s
Ålder	1,98 miljarder år
Andra beteckningar
	104 G. Columbae, CD-37 2889, CPD-37 964, GSC 07614-01951, HIC 31165, HIP 31165, HR 2399, IRAS 06306-3739, 2MASS J06322139-3741479, PLX 1527, PPM 282797, SAO 196917, TD1 7447, TYC 7614-1951-1, uvby98 100046568, Gaia DR2 5580063399781825280, Gaia EDR3 5580063399781825280

HD 46568, eller HR 2399, är en ensam stjärna^[14] i den mellersta delen av stjärnbilden Duvan. Den har en skenbar magnitud av ca 5,25^[2] och är svagt synlig för blotta ögat där ljusföroreningar ej förekommer. Baserat på parallax enligt Gaia Data Release 3 på ca 11,5 mas,^[1] beräknas den befinna sig på ett avstånd på ca 284 ljusår (ca 87 parsek) från solen. Den rör sig bort från solen med en heliocentrisk radialhastighet på ca 39 km/s.^[6]

Egenskaper

HD 46568 är en gul till vit jättestjärna av spektralklass G8 III.^[3] Den har en massa som är ca 1,9^[8] solmassor, en radie som är ca 11^[8] solradier och har ca 60 gånger solens utstrålning av energi^[8] från dess fotosfär vid en effektiv temperatur av ca 4 900 K.^[8]

Referenser

Den här artikeln är helt eller delvis baserad på material från engelskspråkiga Wikipedia, HD 46568, 15 juni 2022.

Noter

^ [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. (1982). Michigan Catalogue of Two-dimensional Spectral Types for the HD stars. Volume_3. Declinations -40_ƒ0 to -26_ƒ0. Bibcode:1982mcts.book.....H.
^ Paunzen, E. (May 2022). "Catalogue of stars measured in the Geneva seven-colour photometric system". Astronomy & Astrophysics. 661: A89. arXiv:2111.04810. Bibcode:2022A&A...661A..89P. doi:10.1051/0004-6361/202142355. eISSN 1432-0746. ISSN 0004-6361.
^ Stoy, R. H. (1968). "Photoelectric Magnitudes and Colours for Bright Southern Stars". Monthly Notes of the Astronomical Society of South Africa. 27: 119. Bibcode:1968MNSSA..27..119S. ISSN 0024-8266.
^ [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.
^ [a b c d e f g h] Ottoni, G.; Udry, S.; Ségransan, D.; Buldgen, G.; Lovis, C.; Eggenberger, P.; Pezzotti, C.; Adibekyan, V.; Marmier, M.; Mayor, M.; Santos, N. C.; Sousa, S. G.; Lagarde, N.; Charbonnel, C. (January 2022). "CORALIE radial-velocity search for companions around evolved stars (CASCADES): I. Sample definition and first results: Three new planets orbiting giant stars,". Astronomy & Astrophysics. 657: A87. arXiv:2201.01528. Bibcode:2022A&A...657A..87O. doi:10.1051/0004-6361/202040078. ISSN 0004-6361.
^ [a b] Gomes da Silva, J.; Santos, N. C.; Adibekyan, V.; Sousa, S. G.; Campante, T. L.; Figueira, P.; Bossini, D.; Delgado-Mena, E.; Monteiro, M. J. P. F. G.; de Laverny, P.; Recio-Blanco, A.; Lovis, C. (February 2021). "Stellar chromospheric activity of 1674 FGK stars from the AMBRE-HARPS sample". Astronomy & Astrophysics. 646: A77. arXiv:2012.10199. Bibcode:2021A&A...646A..77G. doi:10.1051/0004-6361/202039765. eISSN 1432-0746. ISSN 0004-6361.
^ 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.
^ 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.
^ HR 2399 (unistra.fr). Hämtad 2022-08-16.
^ "HD 46568". SIMBAD. Centre de données astronomiques de Strasbourg. Hämtad 7 juni 2022.
^ Eggleton, P. P.; Tokovinin, A. A. (11 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. eISSN 1365-2966. ISSN 0035-8711.

[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.

[C-3] [a b] Houk, N. (1982). Michigan Catalogue of Two-dimensional Spectral Types for the HD stars. Volume_3. Declinations -40_ƒ0 to -26_ƒ0. Bibcode:1982mcts.book.....H.

[D-4] Paunzen, E. (May 2022). "Catalogue of stars measured in the Geneva seven-colour photometric system". Astronomy & Astrophysics. 661: A89. arXiv:2111.04810. Bibcode:2022A&A...661A..89P. doi:10.1051/0004-6361/202142355. eISSN 1432-0746. ISSN 0004-6361.

[E-5] Stoy, R. H. (1968). "Photoelectric Magnitudes and Colours for Bright Southern Stars". Monthly Notes of the Astronomical Society of South Africa. 27: 119. Bibcode:1968MNSSA..27..119S. ISSN 0024-8266.

[F-6] [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-7] 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.

[H-8] [a b c d e f g h] Ottoni, G.; Udry, S.; Ségransan, D.; Buldgen, G.; Lovis, C.; Eggenberger, P.; Pezzotti, C.; Adibekyan, V.; Marmier, M.; Mayor, M.; Santos, N. C.; Sousa, S. G.; Lagarde, N.; Charbonnel, C. (January 2022). "CORALIE radial-velocity search for companions around evolved stars (CASCADES): I. Sample definition and first results: Three new planets orbiting giant stars,". Astronomy & Astrophysics. 657: A87. arXiv:2201.01528. Bibcode:2022A&A...657A..87O. doi:10.1051/0004-6361/202040078. ISSN 0004-6361.

[J-9] [a b] Gomes da Silva, J.; Santos, N. C.; Adibekyan, V.; Sousa, S. G.; Campante, T. L.; Figueira, P.; Bossini, D.; Delgado-Mena, E.; Monteiro, M. J. P. F. G.; de Laverny, P.; Recio-Blanco, A.; Lovis, C. (February 2021). "Stellar chromospheric activity of 1674 FGK stars from the AMBRE-HARPS sample". Astronomy & Astrophysics. 646: A77. arXiv:2012.10199. Bibcode:2021A&A...646A..77G. doi:10.1051/0004-6361/202039765. eISSN 1432-0746. ISSN 0004-6361.

[I-10] 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.

[L-11] 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.

[SIMBAD-12] HR 2399 (unistra.fr). Hämtad 2022-08-16.

[K-13] "HD 46568". SIMBAD. Centre de données astronomiques de Strasbourg. Hämtad 7 juni 2022.

[M-14] Eggleton, P. P.; Tokovinin, A. A. (11 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. eISSN 1365-2966. ISSN 0035-8711.

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Observationsdata Epok: J2000.0
HD 46568

Stjärnbild	Duvan
Rektascension	06^t 32^m 21,3775^s^[1]
Deklination	-37° 41′ 48,2053″^[1]
Skenbar magnitud ( $V$ )	+5,25 ± 0,01^[2]
Stjärntyp
Spektraltyp	G8 III^[3]
U–B	+0,75^[4]
B–V	+0,98^[5]
Astrometri
Radialhastighet ( $R_{v}$ )	+39 ± 1^[6] km/s
Egenrörelse (µ)	RA: +73,075^[1] mas/år Dek.: -75,599^[1] mas/år
Parallax ( $\pi$ )	11,4692 ± 0,0782^[1]
Avstånd	284 ± 2 lå (87,2 ± 0,6 pc)
Absolut magnitud ( $M_{V}$ )	+0,64^[7]
Detaljer
Massa	1,94 ± 0,11^[8] M_☉
Radie	10,66 ± 0,18^[8] R_☉
Luminositet	60,7 ± 1,4^[8] L_☉
Temperatur	4 935 ± 29^[9] K
Metallicitet	-0,16 ± 0,02 (Fe/H)^[8] dex
Vinkelhastighet	1,2 ± 1,2^[10] km/s
Ålder	1,98^[9] miljarder år
Andra beteckningar
104 G. Columbae,^[11] CD-37 2889, CPD-37 964, GSC 07614-01951, HIC 31165, HIP 31165, HR 2399, IRAS 06306-3739, 2MASS J06322139-3741479, PLX 1527, PPM 282797, SAO 196917, TD1 7447, TYC 7614-1951-1, uvby98 100046568, Gaia DR2 5580063399781825280, Gaia EDR3 5580063399781825280 ^[12]^[13]