HD 22676

	HD 22676
Observationsdata; Epok: J2000.0
Stjärnbild	Taffelberget
Rektascension	03t 29m 58,8930 s
Deklination	-78° 21′ 06,634″
Skenbar magnitud ()	5,67 ± 0,01(v)
Stjärntyp
Spektraltyp	G8 III
U–B	+0,65
B–V	+0,93
Astrometri
Radialhastighet ()	+18,4 ± 0,1 km/s
Egenrörelse (µ)	RA: -11,565 mas/år; Dek.: -26,933 mas/år
Parallax ()	9,8072 ± 0,0355
Avstånd	333 ± 1 lå (102,0 ± 0,4 pc)
Absolut magnitud ()	+0,72
Detaljer
Massa	2,36 M☉
Radie	9,33 R☉
Luminositet	58,06 L☉
Temperatur	5 109 ± 32 K
Metallicitet	+0,06 ± 0,03 (Fe/H) dex
Vinkelhastighet	3,4 ± 1 km/s
Ålder	750 miljoner år
Andra beteckningar
	1 G Mensae, CPD-78 101, GSC 09367-01014, HIC 16290, HIP 16290, HR 1109, IRAS 03317-7831, 2MASS J03295889-7821065, PPM 368059, 1RXS J033000.6-782100, SAO 255998, TYC 9367-1014-1, Gaia DR2 4626547056244921472, Gaia EDR3 4626547056244921472

HD 22676 ( eller HR 1109) är en ensam stjärna^[13] i den mellersta delen av stjärnbilden Taffelberget som också har Bayer-beteckningen 1 G Mensae. Den har en skenbar magnitud av ca 5,67^[2] och är svagt synlig för blotta ögat där ljusföroreningar ej förekommer. Baserat på parallax enligt Gaia Data Release 2 på ca 9,8^[1] mas, beräknas den befinna sig på ett avstånd på ca 333 ljusår (ca 102 parsek) från solen. Den rör sig bort från solen med en heliocentrisk radialhastighet på ca 18 km/s.^[5]

Egenskaper

Primärstjärnan HD 22676 är en gul till vit jättestjärna av spektralklass G8 III.^[1] Den befinner sig i röda klumpen i HR-diagrammet, vilket betyder att den ligger på den horisontella jättegrenen.^[14] Den har en massa som är ca 2,4^[7] solmassor, en radie som är ca 9^[8] solradier och har ca 58 gånger solens utstrålning av energi^[9] från dess fotosfär vid en effektiv temperatur av ca 5 100 K.^[10]

Referenser

Den här artikeln är helt eller delvis baserad på material från engelskspråkiga Wikipedia, HD 22676, 27 mars 2022.

Noter

^ [a b c d e f g] 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. 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.; 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] 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.
^ 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] Demarque, Pierre; Woo, Jong‐Hak; Kim, Yong‐Cheol; Yi, Sukyoung K. (December 2004). "Y 2 Isochrones with an Improved Core Overshoot Treatment". The Astrophysical Journal Supplement Series. 155 (2): 667–674. Bibcode:2004ApJS..155..667D. doi:10.1086/424966. ISSN 1538-4357.
^ [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] McDonald, I.; Zijlstra, A. A.; Boyer, M. L. (21 November 2012). "Fundamental parameters and infrared excesses of Hipparcos stars: Parameters and IR excesses from Hipparcos". Monthly Notices of the Royal Astronomical Society. 427 (1): 343–357. arXiv:1208.2037. Bibcode:2012MNRAS.427..343M. doi:10.1111/j.1365-2966.2012.21873.x. ISSN 0035-8711.
^ [a b c] Alves, S.; Benamati, L.; Santos, N. C.; Adibekyan, V. Zh.; Sousa, S. G.; Israelian, G.; De Medeiros, J. R.; Lovis, C.; Udry, S. (11 April 2015). "Determination of the spectroscopic stellar parameters for 257 field giant stars★". Monthly Notices of the Royal Astronomical Society. 448 (3): 2749–2765. arXiv:1503.02556. Bibcode:2015MNRAS.448.2749A. doi:10.1093/mnras/stv189. ISSN 0035-8711.
^ 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 1109 (u-strasbg.fr) |Hämtad 2022-04-09.
^ 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, S2CID 14878976
^ Gontcharov, G. A. (November 2008). "Red giant clump in the Tycho-2 catalogue". Astronomy Letters. 34 (11): 785–796. arXiv:1607.00619. Bibcode:2008AstL...34..785G. doi:10.1134/S1063773708110078. ISSN 0004-6299.

[A-1] [a b c d e f g] 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. 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.; 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] 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.

[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.

[H-7] [a b c] Demarque, Pierre; Woo, Jong‐Hak; Kim, Yong‐Cheol; Yi, Sukyoung K. (December 2004). "Y 2 Isochrones with an Improved Core Overshoot Treatment". The Astrophysical Journal Supplement Series. 155 (2): 667–674. Bibcode:2004ApJS..155..667D. doi:10.1086/424966. ISSN 1538-4357.

[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] McDonald, I.; Zijlstra, A. A.; Boyer, M. L. (21 November 2012). "Fundamental parameters and infrared excesses of Hipparcos stars: Parameters and IR excesses from Hipparcos". Monthly Notices of the Royal Astronomical Society. 427 (1): 343–357. arXiv:1208.2037. Bibcode:2012MNRAS.427..343M. doi:10.1111/j.1365-2966.2012.21873.x. ISSN 0035-8711.

[K-10] [a b c] Alves, S.; Benamati, L.; Santos, N. C.; Adibekyan, V. Zh.; Sousa, S. G.; Israelian, G.; De Medeiros, J. R.; Lovis, C.; Udry, S. (11 April 2015). "Determination of the spectroscopic stellar parameters for 257 field giant stars★". Monthly Notices of the Royal Astronomical Society. 448 (3): 2749–2765. arXiv:1503.02556. Bibcode:2015MNRAS.448.2749A. doi:10.1093/mnras/stv189. ISSN 0035-8711.

[L-11] 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-12] HR 1109 (u-strasbg.fr) |Hämtad 2022-04-09.

[M-13] 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, S2CID 14878976

[C-14] Gontcharov, G. A. (November 2008). "Red giant clump in the Tycho-2 catalogue". Astronomy Letters. 34 (11): 785–796. arXiv:1607.00619. Bibcode:2008AstL...34..785G. doi:10.1134/S1063773708110078. ISSN 0004-6299.

[1]

[2]

[3]

[4]

[5]

[6]

[7]

[8]

[9]

[10]

[11]

[12]

[13]

[14]

Observationsdata Epok: J2000.0
HD 22676

Stjärnbild	Taffelberget
Rektascension	03^t 29^m 58,8930 ^s^[1]
Deklination	-78° 21′ 06,634″^[1]
Skenbar magnitud ( $V$ )	5,67 ± 0,01(v)^[2]
Stjärntyp
Spektraltyp	G8 III^[3]
U–B	+0,65^[4]
B–V	+0,93^[4]
Astrometri
Radialhastighet ( $R_{v}$ )	+18,4 ± 0,1^[5] km/s
Egenrörelse (µ)	RA: -11,565^[1] mas/år Dek.: -26,933^[1] mas/år
Parallax ( $\pi$ )	9,8072 ± 0,0355^[1]
Avstånd	333 ± 1 lå (102,0 ± 0,4 pc)
Absolut magnitud ( $M_{V}$ )	+0,72^[6]
Detaljer
Massa	2,36^[7] M_☉
Radie	9,33^[8] R_☉
Luminositet	58,06^[9] L_☉
Temperatur	5 109 ± 32^[10] K
Metallicitet	+0,06 ± 0,03 (Fe/H)^[10] dex
Vinkelhastighet	3,4 ± 1^[11] km/s
Ålder	750^[7] miljoner år
Andra beteckningar
1 G Mensae, CPD-78 101, GSC 09367-01014, HIC 16290, HIP 16290, HR 1109, IRAS 03317-7831, 2MASS J03295889-7821065, PPM 368059, 1RXS J033000.6-782100, SAO 255998, TYC 9367-1014-1, Gaia DR2 4626547056244921472, Gaia EDR3 4626547056244921472 ^[12]