HD 90132

	HD 90132
Observationsdata; Epok: J2000.0
Stjärnbild	Luftpumpen
Rektascension	10t 23m 29,29608s
Deklination	-38° 00′ 35,4255 ″
Skenbar magnitud ()	5,33 ± 0,01
Stjärntyp
Spektraltyp	A8 V
B–V	+0,25
Astrometri
Radialhastighet ()	+17 ± 4,2 km/s
Egenrörelse (µ)	RA: -158,833 mas/år; Dek.: -53,705 mas/år
Parallax ()	24,2034 ± 0,0725
Avstånd	134,8 ± 0,4 lå (41,3 ± 0,1 pc)
Absolut magnitud ()	+2,25
Detaljer
Massa	1,69 ± 0,27 M☉
Radie	1,87 ± 0,87 R☉
Luminositet	9,79 ± 0,06 L☉
Temperatur	7 737 ± 263 K
Metallicitet	-0,13
Vinkelhastighet	270 km/s
Ålder	70 miljoner år
Andra beteckningar
	64 G. Antliae, NLTT 24220, CD-37 6509, CPD-37 4123, FK5 1269, GSC 07709-02840, HD 90132, HIC 50888, HIP 50888, HR 4086, IRAS 10212-3745, 2MASS J10232927-3800354, PLX 2439, PPM 287637, SAO 201346, TD1 14814, TYC 7709-2840-1, uvby98 100090132, WISEA J102329.15-380035.9, Gaia DR2 5441977138905560576, Gaia DR3 5441977138905560576

HD 90132 eller HR 4086, är en ensam stjärna^[16] belägen i den södra delen av stjärnbilden Luftpumpen. Den har en skenbar magnitud av ca 5,33^[2] och är svagt synlig för blotta ögat där ljusföroreningar ej förekommer. Baserat på parallax enligt Gaia Data Release 3 på ca 24,2 mas,^[1] beräknas den befinna sig på ett avstånd på ca 135 ljusår (ca 41 parsek) från solen. Den rör sig bort från solen med en heliocentrisk radialhastighet på ca 17 km/s.^[5]

Egenskaper

HD 90132 är en blå till vit stjärna i huvudserien av spektralklass A8 V.^[3] Den har en massa som är ca 1,7^[7] solmassa, en radie som är ca 1,9^[5] solradie och utsänder energi från dess fotosfär motsvarande ca 9,8 gånger solen^[8] vid en effektiv temperatur av ca 7 700 K.^[9] Trots en låg ålder på 70 miljoner år^[12] har stjärnan en lägre ytgravitation än väntat.^[9] Detta beror på att radien vid ekvatorn är 18 procent större än polarradien,^[17] vilket i sin tur beror på en hög projicerad rotationshastighet på 270 km/s.^[11] Den har ett lätt underskott på metaller med en metallicitet på 74 procent av solens.^[10]

Referenser

Den här artikeln är helt eller delvis baserad på material från engelskspråkiga Wikipedia, HD 90132, 23 februari 2023..

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° to −26°. 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 c] 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. eISSN 1562-6873. 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. eISSN 1562-6873. ISSN 1063-7737. S2CID 255204555.
^ [a b c] Stassun, Keivan G.; et al. (9 September 2019). "The Revised TESS Input Catalog and Candidate Target List". The Astronomical Journal. 158 (4): 138. arXiv:1905.10694. Bibcode:2019AJ....158..138S. doi:10.3847/1538-3881/ab3467. ISSN 0004-6256.
^ [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.
^ [a b c] David, Trevor J.; Hillenbrand, Lynne A. (12 May 2015). "The Ages of Early-type Stars: Strömgren Photometric Methods Calibrated, Validated, Tested, and Applied to Hosts and Prospective Hosts of Directly Imaged Exoplanets". The Astrophysical Journal. 804 (2): 146. arXiv:1501.03154. Bibcode:2015ApJ...804..146D. doi:10.1088/0004-637X/804/2/146. eISSN 1538-4357.
^ [a b] Netopil, Martin (4 May 2017). "Metallicity calibrations for dwarf stars and giants in the Geneva photometric system". Monthly Notices of the Royal Astronomical Society. 469 (3): 3042–3055. arXiv:1705.00883. Bibcode:2017MNRAS.469.3042N. doi:10.1093/mnras/stx1077. eISSN 1365-2966. ISSN 0035-8711.
^ [a b] Huang, Su-Shu (September 1953). "A Statistical Study of the Rotation of the Stars". The Astrophysical Journal. 118: 285. Bibcode:1953ApJ...118..285H. doi:10.1086/145751. eISSN 1538-4357. ISSN 0004-637X.
^ [a b] Vican, Laura (2 May 2012). "Age Determination for 346 Nearby Stars in the Herschel DEBRIS Survey". The Astronomical Journal. 143 (6): 135. arXiv:1203.1966. Bibcode:2012AJ....143..135V. doi:10.1088/0004-6256/143/6/135. eISSN 1538-3881. ISSN 0004-6256.
^ Gould, Benjamin Apthorp (January 1879). "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 4086 (unistra.fr). Hämtad 2023-07-11.
^ "HD 90132". SIMBAD. Centre de données astronomiques de Strasbourg. Hämtad 20 september 2015.
^ 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.
^ van Belle, Gerard T. (14 March 2012). "Interferometric observations of rapidly rotating stars". The Astronomy and Astrophysics Review. 20 (1): 51. arXiv:1204.2572. Bibcode:2012A&ARv..20...51V. doi:10.1007/s00159-012-0051-2. eISSN 1432-0754. ISSN 0935-4956.

[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° to −26°. Bibcode:1982mcts.book.....H.

[D-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.

[E-5] [a b c] 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. eISSN 1562-6873. 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. eISSN 1562-6873. ISSN 1063-7737. S2CID 255204555.

[G-7] [a b c] Stassun, Keivan G.; et al. (9 September 2019). "The Revised TESS Input Catalog and Candidate Target List". The Astronomical Journal. 158 (4): 138. arXiv:1905.10694. Bibcode:2019AJ....158..138S. doi:10.3847/1538-3881/ab3467. ISSN 0004-6256.

[H-8] [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.

[I-9] [a b c] David, Trevor J.; Hillenbrand, Lynne A. (12 May 2015). "The Ages of Early-type Stars: Strömgren Photometric Methods Calibrated, Validated, Tested, and Applied to Hosts and Prospective Hosts of Directly Imaged Exoplanets". The Astrophysical Journal. 804 (2): 146. arXiv:1501.03154. Bibcode:2015ApJ...804..146D. doi:10.1088/0004-637X/804/2/146. eISSN 1538-4357.

[J-10] [a b] Netopil, Martin (4 May 2017). "Metallicity calibrations for dwarf stars and giants in the Geneva photometric system". Monthly Notices of the Royal Astronomical Society. 469 (3): 3042–3055. arXiv:1705.00883. Bibcode:2017MNRAS.469.3042N. doi:10.1093/mnras/stx1077. eISSN 1365-2966. ISSN 0035-8711.

[K-11] [a b] Huang, Su-Shu (September 1953). "A Statistical Study of the Rotation of the Stars". The Astrophysical Journal. 118: 285. Bibcode:1953ApJ...118..285H. doi:10.1086/145751. eISSN 1538-4357. ISSN 0004-637X.

[L-12] [a b] Vican, Laura (2 May 2012). "Age Determination for 346 Nearby Stars in the Herschel DEBRIS Survey". The Astronomical Journal. 143 (6): 135. arXiv:1203.1966. Bibcode:2012AJ....143..135V. doi:10.1088/0004-6256/143/6/135. eISSN 1538-3881. ISSN 0004-6256.

[M-13] Gould, Benjamin Apthorp (January 1879). "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-14] HR 4086 (unistra.fr). Hämtad 2023-07-11.

[N-15] "HD 90132". SIMBAD. Centre de données astronomiques de Strasbourg. Hämtad 20 september 2015.

[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.

[P-17] van Belle, Gerard T. (14 March 2012). "Interferometric observations of rapidly rotating stars". The Astronomy and Astrophysics Review. 20 (1): 51. arXiv:1204.2572. Bibcode:2012A&ARv..20...51V. doi:10.1007/s00159-012-0051-2. eISSN 1432-0754. ISSN 0935-4956.

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Observationsdata Epok: J2000.0
HD 90132

Stjärnbild	Luftpumpen
Rektascension	10^t 23^m 29,29608^s^[1]
Deklination	-38° 00′ 35,4255 ″^[1]
Skenbar magnitud ( $V$ )	5,33 ± 0,01^[2]
Stjärntyp
Spektraltyp	A8 V^[3]
B–V	+0,25^[4]
Astrometri
Radialhastighet ( $R_{v}$ )	+17 ± 4,2^[5] km/s
Egenrörelse (µ)	RA: -158,833^[1] mas/år Dek.: -53,705^[1] mas/år
Parallax ( $\pi$ )	24,2034 ± 0,0725^[1]
Avstånd	134,8 ± 0,4 lå (41,3 ± 0,1 pc)
Absolut magnitud ( $M_{V}$ )	+2,25^[6]
Detaljer
Massa	1,69 ± 0,27^[7] M_☉
Radie	1,87 ± 0,87^[7] R_☉
Luminositet	9,79 ± 0,06^[8] L_☉
Temperatur	7 737 ± 263^[9] K
Metallicitet	-0,13^[10]
Vinkelhastighet	270^[11] km/s
Ålder	70^[12] miljoner år
Andra beteckningar
64 G. Antliae^[13], NLTT 24220, CD-37 6509, CPD-37 4123, FK5 1269, GSC 07709-02840, HD 90132, HIC 50888, HIP 50888, HR 4086, IRAS 10212-3745, 2MASS J10232927-3800354, PLX 2439, PPM 287637, SAO 201346, TD1 14814, TYC 7709-2840-1, uvby98 100090132, WISEA J102329.15-380035.9, Gaia DR2 5441977138905560576, Gaia DR3 5441977138905560576^[14]^[15]