HD 191829

	HD 191829
Observationsdata; Epok: J2000.0
Stjärnbild	Kikaren
Rektascension	20t 14m 19,0252 s
Deklination	-52° 26′ 44,7553″
Skenbar magnitud ()	+5,632 ± 0,009 (v)
Stjärntyp
Spektraltyp	K4 III
B–V	+1,5
Astrometri
Radialhastighet ()	+14 ± 3 km/s
Egenrörelse (µ)	RA: +25,493 mas/år; Dek.: -54,246 mas/år
Parallax ()	4,5849 ± 0,1152
Avstånd	710 ± 20 lå (218 ± 5 pc)
Absolut magnitud ()	-0,95
Detaljer
Massa	1,17 M☉
Radie	46,44 R☉
Luminositet	561 L☉
Temperatur	3 800 K
Metallicitet	+0,13 (Fe/H) dex
Vinkelhastighet	2,2 ± 1,2 km/s
Andra beteckningar
	81 G. Telescopi, CPD-52 11643, GSC 08404-00053, HIC 99747, HIP 99747, HR 7714, IRAS 20105-5235, 2MASS J20141904-5226447, PLX 4795, PPM 348372, SAO 246495, TYC 8404-53-1, Gaia DR2 6473762286380578432, Gaia EDR3 6473762286380578432

HD 191829 (eller HR 7714) är en ensam stjärna^[12] i den mellersta delen av stjärnbilden Kikaren. Den har en skenbar magnitud av ca 5,63^[2] och är svagt synlig för blotta ögat där ljusföroreningar ej förekommer. Baserat på parallax enligt Gaia Data Release 2 på ca 4,6^[1] mas, beräknas den befinna sig på ett avstånd på ca 710 ljusår (ca 218 parsek) från solen. Den rör sig bort från solen med en heliocentrisk radialhastighet på ca 14 km/s.^[5]

Egenskaper redigera

HD 191829 är en orange till gul jättestjärna av spektralklass K4 III.^[3] Den har en massa som är ca 1,2^[7] solmassor, en radie som, baserat på en uppmätt vinkeldiameter av 1,98 ± 0,16 bågsekunder,^[13] är ca 46^[8] solradier på det beräknade avståndet och har ca 561 gånger solens utstrålning av energi^[9] från dess fotosfär vid en effektiv temperatur av ca 3 800 K.^[7]

Referenser redigera

Den här artikeln är helt eller delvis baserad på material från engelskspråkiga Wikipedia, HD 191829, 27 mars 2022.

Noter redigera

^ [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. 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, Nancy (1978). Michigan catalogue of two-dimensional spectral types for the HD stars. Bibcode:1978mcts.book.....H.
^ Corben, P. M. (1966). "Photoelectric magnitudes and colours for bright southern stars". Monthly Notes of the Astronomical Society of South Africa. 25: 44. Bibcode:1966MNSSA..25...44C. 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] Anders, F.; Khalatyan, A.; Chiappini, C.; Queiroz, A. B.; Santiago, B. X.; Jordi, C.; Girardi, L.; Brown, A. G. A.; Matijevič, G.; Monari, G.; Cantat-Gaudin, T.; Weiler, M.; Khan, S.; Miglio, A.; Carrillo, I.; Romero-Gómez, M.; Minchev, I.; de Jong, R. S.; Antoja, T.; Ramos, P.; Steinmetz, M.; Enke, H. (August 2019). "Photo-astrometric distances, extinctions, and astrophysical parameters for Gaia DR2 stars brighter than G = 18". Astronomy & Astrophysics. 628: A94. arXiv:1904.11302. Bibcode:2019A&A...628A..94A. doi:10.1051/0004-6361/201935765. ISSN 0004-6361.
^ [a b] Stassun, Keivan G.; et al. (2019-10-01). "The Revised TESS Input Catalog and Candidate Target List". The Astronomical Journal. 158 (4): 138. Bibcode:2019AJ....158..138S. doi:10.3847/1538-3881/ab3467. hdl:1721.1/124721. ISSN 0004-6256. S2CID 166227927.
^ [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.
^ 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 7714 (unistra.fr) |Hämtad 2022-05-16.
^ 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
^ Bourgés, L.; Lafrasse, S.; Mella, G.; Chesneau, O.; Bouquin, J. L.; Duvert, G.; Chelli, A.; Delfosse, X. (May 2014). The JMMC Stellar Diameters Catalog v2 (JSDC): A New Release Based on SearchCal Improvements. Vol. 485. p. 223. Bibcode:2014ASPC..485..223B.

Externa länkar redigera

https://www.universeguide.com/star/99747/hd191829.

[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. 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, Nancy (1978). Michigan catalogue of two-dimensional spectral types for the HD stars. Bibcode:1978mcts.book.....H.

[D-4] Corben, P. M. (1966). "Photoelectric magnitudes and colours for bright southern stars". Monthly Notes of the Astronomical Society of South Africa. 25: 44. Bibcode:1966MNSSA..25...44C. ISSN 0024-8266.

[E-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.

[F-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.

[G-7] [a b c d e] Anders, F.; Khalatyan, A.; Chiappini, C.; Queiroz, A. B.; Santiago, B. X.; Jordi, C.; Girardi, L.; Brown, A. G. A.; Matijevič, G.; Monari, G.; Cantat-Gaudin, T.; Weiler, M.; Khan, S.; Miglio, A.; Carrillo, I.; Romero-Gómez, M.; Minchev, I.; de Jong, R. S.; Antoja, T.; Ramos, P.; Steinmetz, M.; Enke, H. (August 2019). "Photo-astrometric distances, extinctions, and astrophysical parameters for Gaia DR2 stars brighter than G = 18". Astronomy & Astrophysics. 628: A94. arXiv:1904.11302. Bibcode:2019A&A...628A..94A. doi:10.1051/0004-6361/201935765. ISSN 0004-6361.

[H-8] [a b] Stassun, Keivan G.; et al. (2019-10-01). "The Revised TESS Input Catalog and Candidate Target List". The Astronomical Journal. 158 (4): 138. Bibcode:2019AJ....158..138S. doi:10.3847/1538-3881/ab3467. hdl:1721.1/124721. ISSN 0004-6256. S2CID 166227927.

[I-9] [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.

[J-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.

[SIMBAD-11] HR 7714 (unistra.fr) |Hämtad 2022-05-16.

[K-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, S2CID 14878976

[L-13] Bourgés, L.; Lafrasse, S.; Mella, G.; Chesneau, O.; Bouquin, J. L.; Duvert, G.; Chelli, A.; Delfosse, X. (May 2014). The JMMC Stellar Diameters Catalog v2 (JSDC): A New Release Based on SearchCal Improvements. Vol. 485. p. 223. Bibcode:2014ASPC..485..223B.

[12]

[2]

[1]

[5]

[3]

[4]

[6]

[7]

[8]

[9]

[10]

[11]

[13]

Observationsdata Epok: J2000.0
HD 191829

Stjärnbild	Kikaren
Rektascension	20^t 14^m 19,0252 ^s^[1]
Deklination	-52° 26′ 44,7553″^[1]
Skenbar magnitud ( $V$ )	+5,632 ± 0,009 (v)^[2]
Stjärntyp
Spektraltyp	K4 III^[3]
B–V	+1,5^[4]
Astrometri
Radialhastighet ( $R_{v}$ )	+14 ± 3^[5] km/s
Egenrörelse (µ)	RA: +25,493^[1] mas/år Dek.: -54,246^[1] mas/år
Parallax ( $\pi$ )	4,5849 ± 0,1152^[1]
Avstånd	710 ± 20 lå (218 ± 5 pc)
Absolut magnitud ( $M_{V}$ )	-0,95^[6]
Detaljer
Massa	1,17^[7] M_☉
Radie	46,44^[8] R_☉
Luminositet	561^[9] L_☉
Temperatur	3 800^[7] K
Metallicitet	+0,13 (Fe/H)^[7] dex
Vinkelhastighet	2,2 ± 1,2^[10] km/s
Andra beteckningar
81 G. Telescopi, CPD-52 11643, GSC 08404-00053, HIC 99747, HIP 99747, HR 7714, IRAS 20105-5235, 2MASS J20141904-5226447, PLX 4795, PPM 348372, SAO 246495, TYC 8404-53-1, Gaia DR2 6473762286380578432, Gaia EDR3 6473762286380578432 ^[11]