HD 30432

	HD 30432
Observationsdata; Epok: J2000.0
Stjärnbild	Gravstickeln
Rektascension	04t 45m 55,45152s
Deklination	-39° 21′ 23,8094 ″
Skenbar magnitud ()	6,04 ± 0,01
Stjärntyp
Spektraltyp	K1 III
B–V	+1,07
Astrometri
Radialhastighet ()	-6 ± 4,3 km/s
Egenrörelse (µ)	RA: -59,362 mas/år; Dek.: -20,031 mas/år
Parallax ()	10,5049 ± 0,0202
Avstånd	310,5 ± 0,6 lå (95,2 ± 0,2 pc)
Absolut magnitud ()	+1,10
Detaljer
Massa	2,80 ± 0,04 M☉
Radie	9,55 ± 0,64 R☉
Luminositet	38,9 ± 1,8 L☉
Temperatur	4 758 ± 122 K
Metallicitet	-0,08
Vinkelhastighet	<1,3 km/s
Ålder	455± 45 miljoner år
Andra beteckningar
	15 G. Caeli, HD 30432, CD-39 1624, CPD-39 514, FK5 2355, GSC 07586-01131, HIC 22144, HIP 22144, HR 1526, IRAS 04442-3926, 2MASS J04455546-3921240, PPM 280640, SAO 195278, TYC 7586-1131-1, Gaia DR2 4817812876332636544, Gaia DR3 4817812876332636544

HD 30432 eller HR 1526, är en ensam stjärna i mellersta delen av stjärnbilden Gravstickeln. Den har en skenbar magnitud av ca 6,04^[2] och är mycket svagt synlig för blotta ögat där ljusföroreningar ej förekommer. Baserat på parallax enligt Gaia Data Release 3 på ca 10,5 mas,^[1] beräknas den befinna sig på ett avstånd på ca 310 ljusår (ca 95 parsek) från solen. Den rör sig närmare solen med en heliocentrisk radialhastighet på ca -6 km/s.^[5] Eggen (1993) listar den som medlem av den gamla skivpopulationen.^[10]

Egenskaper[redigera | redigera wikitext]

HD 30432 är en orange till gul jättestjärna av spektralklass K1 III,^[3] som befinner sig på den röda jättegrenen.^[15] Den genererar energi genom kärnfusion av väte i ett yttre skal kring en inert heliumhärna. Den har en massa som är ca 2,8^[1] solmassor, en radie som är ca 9,5^[7] solradier och har ca 39 gånger solens utstrålning av energi^[8] från dess fotosfär vid en effektiv temperatur av ca 4 800 K.^[9] Liksom de flesta jättar roterar HD 306432 långsamt med en projicerad rotationshastighet som är mindre än 1,3 km/s.^[11]

Referenser[redigera | redigera wikitext]

Den här artikeln är helt eller delvis baserad på material från engelskspråkiga Wikipedia, XO-3, 2 februari 2022..

Noter[redigera | redigera wikitext]

^ [a b c d e f g h i] Vallenari, A.; et al. (Gaia Collaboration) (2022). "Gaia Data Release 3. Summary of the content and survey properties". Astronomy & Astrophysics. arXiv:2208.00211. doi:10.1051/0004-6361/202243940. Gaia DR3 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 III: 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] 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 119257644.
^ [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] Charbonnel, C.; Lagarde, N.; Jasniewicz, G.; North, P. L.; Shetrone, M.; Krugler Hollek, J.; Smith, V. V.; Smiljanic, R.; Palacios, A.; Ottoni, G. (January 2020). "Lithium in red giant stars: Constraining non-standard mixing with large surveys in the Gaia era". Astronomy & Astrophysics. 633: A34. arXiv:1910.12732. Bibcode:2020A&A...633A..34C. doi:10.1051/0004-6361/201936360. eISSN 1432-0746. ISSN 0004-6361.
^ [a b] 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. eISSN 1538-3881.
^ [a b] Eggen, O. J. (July 1993). "Evolved GK stars near the sun. I - The old disk population". The Astronomical Journal. 106: 80. Bibcode:1993AJ....106...80E. doi:10.1086/116622.
^ [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". Astronomy & Astrophysics. 561: A126. arXiv:1312.3474. Bibcode:2014A&A...561A.126D. doi:10.1051/0004-6361/201220762. eISSN 1432-0746. 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 1526 (unistra.fr). Hämtad 2022-10-27.
^ "HR 1526". SIMBAD. Centre de données astronomiques de Strasbourg. Hämtad 6 september 2022.
^ Cardiel, Nicolás; Zamorano, Jaime; Carrasco, Josep Manel; Masana, Eduard; Bará, Salvador; González, Rafael; Izquierdo, Jaime; Pascual, Sergio; Sánchez de Miguel, Alejandro (23 July 2021). "RGB photometric calibration of 15 million Gaia stars". Monthly Notices of the Royal Astronomical Society. 507 (1): 318–329. arXiv:2107.08734. Bibcode:2021MNRAS.507..318C. doi:10.1093/mnras/stab2124. eISSN 1365-2966. ISSN 0035-8711.

[A-1] [a b c d e f g h i] Vallenari, A.; et al. (Gaia Collaboration) (2022). "Gaia Data Release 3. Summary of the content and survey properties". Astronomy & Astrophysics. arXiv:2208.00211. doi:10.1051/0004-6361/202243940. Gaia DR3 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] [a b] Houk, N. (1982). Michigan Catalogue of Two-dimensional Spectral Types for the HD stars III: Declinations −40° to −26°. 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] 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.

[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. eISSN 1562-6873. ISSN 1063-7737. S2CID 119257644.

[H-7] [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.

[I-8] [a b] Charbonnel, C.; Lagarde, N.; Jasniewicz, G.; North, P. L.; Shetrone, M.; Krugler Hollek, J.; Smith, V. V.; Smiljanic, R.; Palacios, A.; Ottoni, G. (January 2020). "Lithium in red giant stars: Constraining non-standard mixing with large surveys in the Gaia era". Astronomy & Astrophysics. 633: A34. arXiv:1910.12732. Bibcode:2020A&A...633A..34C. doi:10.1051/0004-6361/201936360. eISSN 1432-0746. ISSN 0004-6361.

[J-9] [a b] 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. eISSN 1538-3881.

[K-10] [a b] Eggen, O. J. (July 1993). "Evolved GK stars near the sun. I - The old disk population". The Astronomical Journal. 106: 80. Bibcode:1993AJ....106...80E. doi:10.1086/116622.

[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". Astronomy & Astrophysics. 561: A126. arXiv:1312.3474. Bibcode:2014A&A...561A.126D. doi:10.1051/0004-6361/201220762. eISSN 1432-0746. 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 1526 (unistra.fr). Hämtad 2022-10-27.

[N-14] "HR 1526". SIMBAD. Centre de données astronomiques de Strasbourg. Hämtad 6 september 2022.

[C-15] Cardiel, Nicolás; Zamorano, Jaime; Carrasco, Josep Manel; Masana, Eduard; Bará, Salvador; González, Rafael; Izquierdo, Jaime; Pascual, Sergio; Sánchez de Miguel, Alejandro (23 July 2021). "RGB photometric calibration of 15 million Gaia stars". Monthly Notices of the Royal Astronomical Society. 507 (1): 318–329. arXiv:2107.08734. Bibcode:2021MNRAS.507..318C. doi:10.1093/mnras/stab2124. eISSN 1365-2966. ISSN 0035-8711.

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Observationsdata Epok: J2000.0
HD 30432

Stjärnbild	Gravstickeln
Rektascension	04^t 45^m 55,45152^s^[1]
Deklination	-39° 21′ 23,8094 ″^[1]
Skenbar magnitud ( $V$ )	6,04 ± 0,01^[2]
Stjärntyp
Spektraltyp	K1 III^[3]
B–V	+1,07^[4]
Astrometri
Radialhastighet ( $R_{v}$ )	-6 ± 4,3^[5] km/s
Egenrörelse (µ)	RA: -59,362^[1] mas/år Dek.: -20,031^[1] mas/år
Parallax ( $\pi$ )	10,5049 ± 0,0202^[1]
Avstånd	310,5 ± 0,6 lå (95,2 ± 0,2 pc)
Absolut magnitud ( $M_{V}$ )	+1,10^[6]
Detaljer
Massa	2,80 ± 0,04^[1] M_☉
Radie	9,55 ± 0,64^[7] R_☉
Luminositet	38,9 ± 1,8^[8] L_☉
Temperatur	4 758 ± 122^[9] K
Metallicitet	-0,08^[10]
Vinkelhastighet	<1,3^[11] km/s
Ålder	455± 45^[1] miljoner år
Andra beteckningar
15 G. Caeli,^[12] HD 30432, CD-39 1624, CPD-39 514, FK5 2355, GSC 07586-01131, HIC 22144, HIP 22144, HR 1526, IRAS 04442-3926, 2MASS J04455546-3921240, PPM 280640, SAO 195278, TYC 7586-1131-1, Gaia DR2 4817812876332636544, Gaia DR3 4817812876332636544^[13]^[14]