HD 36848

	HD 36848
Observationsdata; Epok: J2000.0
Stjärnbild	Duvan
Rektascension	05t 32m 51,4130s
Deklination	-38° 30′ 48,1306″
Skenbar magnitud ()	+5,46 ± 0,01
Stjärntyp
Spektraltyp	K2/3 III
B–V	+1,22
Astrometri
Radialhastighet ()	-0,6 ± 0,01 km/s
Egenrörelse (µ)	RA: +48,475 mas/år; Dek.: -10,959 mas/år
Parallax ()	18,7844 ± 0,0462
Avstånd	173,6 ± 0,4 lå (53,2 ± 0,1 pc)
Absolut magnitud ()	+1,84
Detaljer
Massa	1,18 M☉
Radie	8,71 ± 0,58 R☉
Luminositet	24,54 L☉
Temperatur	4 460 ± 70 K
Metallicitet	+0,28 ± 0,05 (Fe/H) dex
Vinkelhastighet	<2,7 km/s
Ålder	7,33 miljarder år
Andra beteckningar
	24 G. Columbae, HD 36848, CD-38 2085, CPD-38 653, GSC 07596-01393, HIC 25993, HIP 25993, HR 1877, IRAS 05311-3832, 2MASS J05325141-3830482, PLX 1270, PPM 281583, SAO 195948, TYC 7596-1393-1, Gaia DR2 4808960875719316608, Gaia EDR3 4808960875719316608

HD 36848, eller HR 1877, är en ensam stjärna i den mellersta delen av stjärnbilden Duvan. Den har en skenbar magnitud av ca 5,46^[2] och är svagt synlig för blotta ögat där ljusföroreningar ej förekommer. Baserat på parallax enligt Gaia Data Release 3 på ca 18,8 mas,^[1] beräknas den befinna sig på ett avstånd på ca 174 ljusår (ca 53 parsek) från solen. Den rör sig närmare solen med en heliocentrisk radialhastighet på ca -0,6 km/s.^[5]

Egenskaper[redigera | redigera wikitext]

HD 36848 är en orange till gul jättestjärna av spektralklass K2/3 III,^[15] som befinner sig på den röda jättegrenen,^[15] vilket betyder att den förbrukat förrådet av väte i dess kärna och genererar energi genom fusion av helium i ett yttre skal. Den har en massa som är ca 1,2^[7] solmassor, en radie som är ca 8,7^[8] solradier och har ca 25 gånger solens utstrålning av energi^[9] från dess fotosfär vid en effektiv temperatur av ca 4 500 K.^[10]

Stjärnans mångfaldsstatus är inte allmänt överenskommen. Eggleton et. al. klassificerar den som en ensam stjärna^[16] medan De Mederios et. al. finner att den är en trolig spektroskopisk dubbelstjärna.^[11]

Referenser[redigera | redigera wikitext]

Den här artikeln är helt eller delvis baserad på material från engelskspråkiga Wikipedia, HD 36848, 29 juni 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.
^ 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.
^ 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] Jofré, E.; Petrucci, R.; Saffe, C.; Saker, L.; Artur de la Villarmois, E.; Chavero, C.; Gómez, M.; Mauas, P. J. D. (26 January 2015). "Stellar parameters and chemical abundances of 223 evolved stars with and without planets". Astronomy & Astrophysics. 574: A50. arXiv:1410.6422. Bibcode:2015A&A...574A..50J. doi:10.1051/0004-6361/201424474. eISSN 1432-0746. ISSN 0004-6361.
^ 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 c] Dotter, Aaron; Chaboyer, Brian; Jevremović, Darko; Kostov, Veselin; Baron, E.; Ferguson, Jason W. (September 2008). "The Dartmouth Stellar Evolution Database". The Astrophysical Journal Supplement Series. 178 (1): 89–101. arXiv:0804.4473. Bibcode:2008ApJS..178...89D. doi:10.1086/589654. eISSN 1538-4365. ISSN 0067-0049.
^ [a b] Allende Prieto, C.; Lambert, D. L. (December 1999). "Fundamental parameters of nearby stars from the comparison with evolutionary calculations: masses, radii and effective temperatures". Astronomy and Astrophysics. 352: 555–562. arXiv:astro-ph/9911002. Bibcode:1999A&A...352..555A. ISSN 0004-6361.
^ [a b] Luck, R. Earle (25 August 2015). "Abundances in the Local Region. I. G and K Giants". The Astronomical Journal. 150 (3): 88. arXiv:1507.01466. Bibcode:2015AJ....150...88L. doi:10.1088/0004-6256/150/3/88. eISSN 1538-3881. ISSN 0004-6256. S2CID 118505114.
^ [a b c] da Silva, L.; Girardi, L.; Pasquini, L.; Setiawan, J.; von der Lühe, O.; de Medeiros, J. R.; Hatzes, A.; Döllinger, M. P.; Weiss, A. (12 September 2006). "Basic physical parameters of a selected sample of evolved stars". Astronomy & Astrophysics. 458 (2): 609–623. arXiv:astro-ph/0608160. Bibcode:2006A&A...458..609D. doi:10.1051/0004-6361:20065105. eISSN 1432-0746. da Silva, L.; Girardi, L.; Pasquini, L.; Setiawan, J.; von der Lühe, O.; de Medeiros, J. R.; Hatzes, A.; Döllinger, M. P.; Weiss, A. (12 September 2006). "Basic physical parameters of a selected sample of evolved stars". Astronomy & Astrophysics. 458 (2): 609–623. arXiv:astro-ph/0608160. Bibcode:2006A&A...458..609D. doi:10.1051/0004-6361:20065105. eISSN 1432-0746. ISSN 0004-6361.ISSN 0004-6361.
^ [a b] 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 1877 (unistra.fr). Hämtad 2022-08-14.
^ "HR 1877". SIMBAD. Centre de données astronomiques de Strasbourg. Hämtad 27 juni 2022.
^ [a b] Setiawan, J.; et al. (July 2004). "Precise radial velocity measurements of G and K giants. Multiple systems and variability trend along the Red Giant Branch". Astronomy and Astrophysics. 421: 241–254. Bibcode:2004A&A...421..241S. doi:10.1051/0004-6361:20041042-1.
^ 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.

[D-3] 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.

[E-4] 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] Jofré, E.; Petrucci, R.; Saffe, C.; Saker, L.; Artur de la Villarmois, E.; Chavero, C.; Gómez, M.; Mauas, P. J. D. (26 January 2015). "Stellar parameters and chemical abundances of 223 evolved stars with and without planets". Astronomy & Astrophysics. 574: A50. arXiv:1410.6422. Bibcode:2015A&A...574A..50J. doi:10.1051/0004-6361/201424474. eISSN 1432-0746. ISSN 0004-6361.

[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 c] Dotter, Aaron; Chaboyer, Brian; Jevremović, Darko; Kostov, Veselin; Baron, E.; Ferguson, Jason W. (September 2008). "The Dartmouth Stellar Evolution Database". The Astrophysical Journal Supplement Series. 178 (1): 89–101. arXiv:0804.4473. Bibcode:2008ApJS..178...89D. doi:10.1086/589654. eISSN 1538-4365. ISSN 0067-0049.

[I-8] [a b] Allende Prieto, C.; Lambert, D. L. (December 1999). "Fundamental parameters of nearby stars from the comparison with evolutionary calculations: masses, radii and effective temperatures". Astronomy and Astrophysics. 352: 555–562. arXiv:astro-ph/9911002. Bibcode:1999A&A...352..555A. ISSN 0004-6361.

[J-9] [a b] Luck, R. Earle (25 August 2015). "Abundances in the Local Region. I. G and K Giants". The Astronomical Journal. 150 (3): 88. arXiv:1507.01466. Bibcode:2015AJ....150...88L. doi:10.1088/0004-6256/150/3/88. eISSN 1538-3881. ISSN 0004-6256. S2CID 118505114.

[K-10] [a b c] da Silva, L.; Girardi, L.; Pasquini, L.; Setiawan, J.; von der Lühe, O.; de Medeiros, J. R.; Hatzes, A.; Döllinger, M. P.; Weiss, A. (12 September 2006). "Basic physical parameters of a selected sample of evolved stars". Astronomy & Astrophysics. 458 (2): 609–623. arXiv:astro-ph/0608160. Bibcode:2006A&A...458..609D. doi:10.1051/0004-6361:20065105. eISSN 1432-0746. da Silva, L.; Girardi, L.; Pasquini, L.; Setiawan, J.; von der Lühe, O.; de Medeiros, J. R.; Hatzes, A.; Döllinger, M. P.; Weiss, A. (12 September 2006). "Basic physical parameters of a selected sample of evolved stars". Astronomy & Astrophysics. 458 (2): 609–623. arXiv:astro-ph/0608160. Bibcode:2006A&A...458..609D. doi:10.1051/0004-6361:20065105. eISSN 1432-0746. ISSN 0004-6361.ISSN 0004-6361.

[L-11] [a b] 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.

[M-12] 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-13] HR 1877 (unistra.fr). Hämtad 2022-08-14.

[N-14] "HR 1877". SIMBAD. Centre de données astronomiques de Strasbourg. Hämtad 27 juni 2022.

[C-15] [a b] Setiawan, J.; et al. (July 2004). "Precise radial velocity measurements of G and K giants. Multiple systems and variability trend along the Red Giant Branch". Astronomy and Astrophysics. 421: 241–254. Bibcode:2004A&A...421..241S. doi:10.1051/0004-6361:20041042-1.

[O-16] 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 36848

Stjärnbild	Duvan
Rektascension	05^t 32^m 51,4130^s^[1]
Deklination	-38° 30′ 48,1306″^[1]
Skenbar magnitud ( $V$ )	+5,46 ± 0,01^[2]
Stjärntyp
Spektraltyp	K2/3 III^[3]
B–V	+1,22^[4]
Astrometri
Radialhastighet ( $R_{v}$ )	-0,6 ± 0,01^[5] km/s
Egenrörelse (µ)	RA: +48,475^[1] mas/år Dek.: -10,959^[1] mas/år
Parallax ( $\pi$ )	18,7844 ± 0,0462^[1]
Avstånd	173,6 ± 0,4 lå (53,2 ± 0,1 pc)
Absolut magnitud ( $M_{V}$ )	+1,84^[6]
Detaljer
Massa	1,18^[7] M_☉
Radie	8,71 ± 0,58^[8] R_☉
Luminositet	24,54^[9] L_☉
Temperatur	4 460 ± 70^[10] K
Metallicitet	+0,28 ± 0,05 (Fe/H)^[10] dex
Vinkelhastighet	<2,7^[11] km/s
Ålder	7,33^[7] miljarder år
Andra beteckningar
24 G. Columbae,^[12] HD 36848, CD-38 2085, CPD-38 653, GSC 07596-01393, HIC 25993, HIP 25993, HR 1877, IRAS 05311-3832, 2MASS J05325141-3830482, PLX 1270, PPM 281583, SAO 195948, TYC 7596-1393-1, Gaia DR2 4808960875719316608, Gaia EDR3 4808960875719316608 ^[13]^[14]