HD 32515

	HD 32515
Observationsdata; Epok: J2000.0
Stjärnbild	Gravstickeln
Rektascension	05t 02m 22,8045 s
Deklination	-31° 46′ 16,8028″
Skenbar magnitud ()	+5,90 ± 0,01 (V)
Stjärntyp
Spektraltyp	K2 III
B–V	+1,17
Astrometri
Radialhastighet ()	+29 ± 4 km/s
Egenrörelse (µ)	RA: -6,866 mas/år; Dek.: +84,982 mas/år
Parallax ()	10,0579 ± 0,0324
Avstånd	324 ± 1 lå (99,4 ± 0,3 pc)
Absolut magnitud ()	+1,02
Detaljer
Massa	1,52 M☉
Radie	11,01 R☉
Luminositet	56,3 ± 2,5 L☉
Temperatur	4 540 ± 100 K
Metallicitet	0,00 (Fe/H) dex
Vinkelhastighet	1,4 ± 1,2 km/s
Ålder	4,59 miljarder år
Andra beteckningar
	CD-31 2163, CPD-31 684, FK5 1139, GSC 07047-01075, HIC 23446, HIP 23446, HR 1635, IRAS 05004-3150, 2MASS J05022281-3146168, PPM 280974, SAO 195509, TYC 7047-1075-1, Gaia DR2 4875252016602964352, Gaia EDR3 4875252016602964352

HD 32515 är en ensam stjärna i den norra delen av stjärnbilden Gravstickeln. Den har en skenbar magnitud av ca 5,90^[2] och är svagt synlig för blotta ögat där ljusföroreningar ej förekommer. Baserat på parallax enligt Gaia Data Release 2 på ca 10,1^[1] mas, beräknas den befinna sig på ett avstånd på ca 324 ljusår (ca 99 parsek) från solen. Den rör sig bort från solen med en heliocentrisk radialhastighet på ca 29 km/s.^[5]

Egenskaper[redigera | redigera wikitext]

HD 32515 är en orange till gul jättestjärna av spektralklass K2 III.^[3] Den har en massa som är ca 1,5^[7] solmassor, en radie som, baserat på en uppmätt vinkeldiameter (kompenserad för randfördunkling) på 1,03 ± 0,07 mas,^[12] är ca 11^[8] solradier och har ca 56 gånger solens utstrålning av energi^[9] från dess fotosfär vid en effektiv temperatur av ca 4 500 K.^[9]

Referenser[redigera | redigera wikitext]

Den här artikeln är helt eller delvis baserad på material från engelskspråkiga Wikipedia, HD 32515, 4 mars 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. 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. (1 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_f0 to -26_f0". Michigan Catalogue of Two-dimensional Spectral Types for the HD Stars. Volume_3. Declinations -40_f0 to -26_f0., by Houk, N.. Ann Arbor, MI(USA): Department of Astronomy, University of Michigan, 12 + 390 P. 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. Bibcode:2006AstL...32..759G. doi:10.1134/S1063773706110065. ISSN 1063-7737.
^ https://www.universeguide.com/star/23446/hd32515. Hämtad 2022-03-10.
^ [a b c] Luck, R. Earle (1 September 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. ISSN 0004-6256. S2CID 118505114.
^ [a b] Lang, Kenneth R. (2006). Astrophysical formulae. Astronomy and astrophysics library. Vol. 1 (3 ed.). Birkhäuser. ISBN 3-540-29692-1. The radius (R*) is given by:
${\begin{aligned}2\cdot R_{*}&={\frac {(99.4\cdot 1.03\cdot 10^{-3})\ {\text{AU}}}{0.0046491\ {\text{AU}}/R_{\bigodot }}}\\&\approx 22.02\cdot R_{\bigodot }\end{aligned}}$
^ [a b c d e] Charbonnel, C.; Lagarde, N.; Jasniewicz, G.; North, P. L.; Shetrone, M.; Krugler Hollek, J.; Smith, V. V.; Smiljanic, R.; Palacios, A.; Ottoni, G. (1 January 2020). "Lithium in red giant stars: Constraining non-standard mixing with large surveys in the Gaia era". Astronomy and Astrophysics. 633: A34. arXiv:1910.12732. Bibcode:2020A&A...633A..34C. doi:10.1051/0004-6361/201936360. ISSN 0004-6361. S2CID 204907220.
^ De Medeiros, J. R.; Alves, S.; Udry, S.; Andersen, J.; Nordström, B.; Mayor, M. (1 January 2014). "A catalog of rotational and radial velocities for evolved stars. V. Southern stars". Astronomy and Astrophysics. 561: A126. arXiv:1312.3474. Bibcode:2014A&A...561A.126D. doi:10.1051/0004-6361/201220762. ISSN 0004-6361. S2CID 54046583.
^ HR 1635 (u-strasbg.fr) |Hämtad 2022-03-10.
^ Lafrasse, Sylvain; Mella, Guillaume; Bonneau, Daniel; Duvert, Gilles; Delfosse, Xavier; Chesneau, Olivier; Chelli, Alain (16 July 2010). "Building the 'JMMC Stellar Diameters Catalog' using SearchCal". Optical and Infrared Interferometry II. Vol. 7734. pp. 77344E. arXiv:1009.0137. Bibcode:2010SPIE.7734E..4EL. doi:10.1117/12.857024. S2CID 32097037.

Externa länkar[redigera | redigera wikitext]

https://www.universeguide.com/star/23446/hd32515.

[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. (1 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_f0 to -26_f0". Michigan Catalogue of Two-dimensional Spectral Types for the HD Stars. Volume_3. Declinations -40_f0 to -26_f0., by Houk, N.. Ann Arbor, MI(USA): Department of Astronomy, University of Michigan, 12 + 390 P. 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] 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. Bibcode:2006AstL...32..759G. doi:10.1134/S1063773706110065. ISSN 1063-7737.

[UG-6] ttps://www.universeguide.com/star/23446/hd32515. Hämtad 2022-03-10.

[F-7] [a b c] Luck, R. Earle (1 September 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. ISSN 0004-6256. S2CID 118505114.

[G-8] [a b] Lang, Kenneth R. (2006). Astrophysical formulae. Astronomy and astrophysics library. Vol. 1 (3 ed.). Birkhäuser. ISBN 3-540-29692-1. The radius (R*) is given by:
${\begin{aligned}2\cdot R_{*}&={\frac {(99.4\cdot 1.03\cdot 10^{-3})\ {\text{AU}}}{0.0046491\ {\text{AU}}/R_{\bigodot }}}\\&\approx 22.02\cdot R_{\bigodot }\end{aligned}}$

[H-9] [a b c d e] Charbonnel, C.; Lagarde, N.; Jasniewicz, G.; North, P. L.; Shetrone, M.; Krugler Hollek, J.; Smith, V. V.; Smiljanic, R.; Palacios, A.; Ottoni, G. (1 January 2020). "Lithium in red giant stars: Constraining non-standard mixing with large surveys in the Gaia era". Astronomy and Astrophysics. 633: A34. arXiv:1910.12732. Bibcode:2020A&A...633A..34C. doi:10.1051/0004-6361/201936360. ISSN 0004-6361. S2CID 204907220.

[J-10] De Medeiros, J. R.; Alves, S.; Udry, S.; Andersen, J.; Nordström, B.; Mayor, M. (1 January 2014). "A catalog of rotational and radial velocities for evolved stars. V. Southern stars". Astronomy and Astrophysics. 561: A126. arXiv:1312.3474. Bibcode:2014A&A...561A.126D. doi:10.1051/0004-6361/201220762. ISSN 0004-6361. S2CID 54046583.

[SIMBAD-11] HR 1635 (u-strasbg.fr) |Hämtad 2022-03-10.

[I-12] Lafrasse, Sylvain; Mella, Guillaume; Bonneau, Daniel; Duvert, Gilles; Delfosse, Xavier; Chesneau, Olivier; Chelli, Alain (16 July 2010). "Building the 'JMMC Stellar Diameters Catalog' using SearchCal". Optical and Infrared Interferometry II. Vol. 7734. pp. 77344E. arXiv:1009.0137. Bibcode:2010SPIE.7734E..4EL. doi:10.1117/12.857024. S2CID 32097037.

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Observationsdata Epok: J2000.0
HD 32515

Stjärnbild	Gravstickeln
Rektascension	05^t 02^m 22,8045 ^s^[1]
Deklination	-31° 46′ 16,8028″^[1]
Skenbar magnitud ( $V$ )	+5,90 ± 0,01 (V)^[2]
Stjärntyp
Spektraltyp	K2 III^[3]
B–V	+1,17^[4]
Astrometri
Radialhastighet ( $R_{v}$ )	+29 ± 4^[5] km/s
Egenrörelse (µ)	RA: -6,866^[1] mas/år Dek.: +84,982^[1] mas/år
Parallax ( $\pi$ )	10,0579 ± 0,0324^[1]
Avstånd	324 ± 1 lå (99,4 ± 0,3 pc)
Absolut magnitud ( $M_{V}$ )	+1,02^[6]
Detaljer
Massa	1,52^[7] M_☉
Radie	11,01^[8] R_☉
Luminositet	56,3 ± 2,5^[9] L_☉
Temperatur	4 540 ± 100^[9] K
Metallicitet	0,00 (Fe/H)^[9] dex
Vinkelhastighet	1,4 ± 1,2^[10] km/s
Ålder	4,59^[7] miljarder år
Andra beteckningar
CD-31 2163, CPD-31 684, FK5 1139, GSC 07047-01075, HIC 23446, HIP 23446, HR 1635, IRAS 05004-3150, 2MASS J05022281-3146168, PPM 280974, SAO 195509, TYC 7047-1075-1, Gaia DR2 4875252016602964352, Gaia EDR3 4875252016602964352 ^[11]