Jump to content

HD 24141

From Wikipedia, the free encyclopedia
HD 24141
Location of HD 24141 on the map (circled)
Observation data
Epoch J2000.0      Equinox J2000.0 (ICRS)
Constellation Camelopardalis
Right ascension 03h 53m 43.28625s[1]
Declination +57° 58′ 30.5263″[1]
Apparent magnitude (V) 5.79±0.01[2]
Characteristics
Spectral type kA3hF0mF0[3] or A7 V[4]
U−B color index +0.11[5]
B−V color index +0.18[5]
Astrometry
Radial velocity (Rv)−0.2±0.6[6] km/s
Proper motion (μ) RA: +86.826 mas/yr[1]
Dec.: −91.295 mas/yr[1]
Parallax (π)18.5633 ± 0.0352 mas[1]
Distance175.7 ± 0.3 ly
(53.9 ± 0.1 pc)
Absolute magnitude (MV)+2.28[7]
Position (relative to HD 24141A)
ComponentHD 24141B
Epoch of observationJ2000.0
Angular distance1.02″ [8]
Position angle69° [9]
Projected separation52.3 AU [8]
Details
A
Mass1.92[10] M☉
Radius1.72±0.09[11] R☉
Luminosity10.66±0.04[1] L☉
Surface gravity (log g)4.28+0.08
−0.07[12] cgs
Temperature8,518±290[10] K
Metallicity [Fe/H]−0.02[13] dex
Rotational velocity (v sin i)53±10[14] km/s
Age15[10] Myr
B
Mass0.77[8] M☉
Other designations
AG+57°437, BD+57°752, FK5 1105, GC 4668, HD 24141, HIP 18217, HR 1192, SAO 24276, WDS J03537+5759AB[15]
Database references
SIMBADdata

HD 24141, also known as HR 1192, is a star located in the northern constellation Camelopardalis, the giraffe. It is faintly visible to the naked eye as a white-hued point of light with an apparent magnitude of 5.79.[2] The object is located relatively close at a distance of 176 light-years based on Gaia DR3 parallax measurements[1] and it is slowly drifting closer with a heliocentric radial velocity of −0.2 km/s.[6] At its current distance, HD 24141's brightness is diminished by 0.17 magnitudes due to interstellar extinction[16] and it has an absolute magnitude of +2.28.[7]

It is not entirely certain whether HD 24141 is an Am star or not.[17] One stellar classification is kA3hF0mF0,[3] which indicates that it is an Am star with the calcium K-lines of an A3 star and the hydrogen and metallic lines of a F0 star. However, Abt & Levy (1985) gave a class of A7 V,[4] indicating that it is instead an ordinary A-type main-sequence star. HD 24141 has 1.92 times the mass of the Sun and it is estimated to be only 15 million years old.[10] It radiates 10.66 times the luminosity of the Sun[1] from its photosphere at an effective temperature of 8,518 K.[10] These parameters correspond to a radius that is 72% larger than the Sun's.[11] HD 24141 has a near-solar metallicity at [Fe/H] = −0.02[13] and it spins modestly with a projected rotational velocity of 53 km/s.[14]

Most sources generally agree that HD 24141 is a solitary star.[18][4][19] A 2014 multiplicity survey found a 7th magnitude companion with a mass of 0.77 M☉[8] located 1.02" away from the star[8] along a position angle of 69°. Another 15th magnitude companion designated as C is located 1216″ away along a position angle of 187°.[20] The object appears to share the same proper motion as HD 24141,[9] but the Gaia DR3 parallax is different and it is considered very unlikely that the two are physically associated.[21]

References

[edit]
  1. ^ a b c d e f g Vallenari, A.; et al. (Gaia collaboration) (2023). "Gaia Data Release 3. Summary of the content and survey properties". Astronomy and Astrophysics. 674: A1. arXiv:2208.00211. Bibcode:2023A&A...674A...1G. doi:10.1051/0004-6361/202243940. S2CID 244398875. Gaia DR3 record for this source at VizieR.
  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. S2CID 17128864.
  3. ^ a b Sato, K.; Kuji, S. (November 1990). "MK classification and photometry of stars used for time and latitude observations at Mizusawa and Washington". Astronomy and Astrophysics Supplement Series. 85: 1069. Bibcode:1990A&AS...85.1069S. ISSN 0365-0138. S2CID 115879513.
  4. ^ a b c Abt, H. A.; Levy, S. G. (October 1985). "Improved study of metallic-line binaries". The Astrophysical Journal Supplement Series. 59. American Astronomical Society: 229. Bibcode:1985ApJS...59..229A. doi:10.1086/191070. ISSN 0067-0049. S2CID 120757291.
  5. ^ a b Mendoza, E. E.; Gomez, V. T.; Gonzalez, S. (June 1978). "UBVRI photometry of 225 AM stars". The Astronomical Journal. 83. American Astronomical Society: 606. Bibcode:1978AJ.....83..606M. doi:10.1086/112242. ISSN 0004-6256. S2CID 121449759.
  6. ^ 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.
  7. ^ a b 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.
  8. ^ a b c d e De Rosa, R. J.; et al. (26 November 2013). "The VAST Survey – III. The multiplicity of A-type stars within 75 pc". Monthly Notices of the Royal Astronomical Society. 437 (2): 1216–1240. arXiv:1311.7141. Bibcode:2014MNRAS.437.1216D. doi:10.1093/mnras/stt1932. eISSN 1365-2966. ISSN 0035-8711. S2CID 88503488.
  9. ^ a b Mason, Brian D.; Wycoff, Gary L.; Hartkopf, William I.; Douglass, Geoffrey G.; Worley, Charles E. (December 2001). "The 2001 US Naval Observatory Double Star CD-ROM. I. The Washington Double Star Catalog". The Astronomical Journal. 122 (6): 3466–3471. Bibcode:2001AJ....122.3466M. doi:10.1086/323920. ISSN 0004-6256. S2CID 119533755.
  10. ^ a b c d e 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. S2CID 33401607.
  11. ^ a b Kervella, P.; Thévenin, F.; Di Folco, E.; Ségransan, D. (October 2004). "The angular sizes of dwarf stars and subgiants". Astronomy & Astrophysics. 426 (1): 297–307. arXiv:astro-ph/0404180. Bibcode:2004A&A...426..297K. doi:10.1051/0004-6361:20035930. eISSN 1432-0746. ISSN 0004-6361.
  12. ^ 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. hdl:1721.1/124721. S2CID 166227927.
  13. ^ a b Gontcharov, G. A. (December 2012). "Dependence of kinematics on the age of stars in the solar neighborhood". Astronomy Letters. 38 (12): 771–782. arXiv:1606.08814. Bibcode:2012AstL...38..771G. doi:10.1134/S1063773712120031. eISSN 1562-6873. ISSN 1063-7737. S2CID 118345778.
  14. ^ a b Abt, Helmut A.; Morrell, Nidia I. (July 1995). "The Relation between Rotational Velocities and Spectral Peculiarities among A-Type Stars". The Astrophysical Journal Supplement Series. 99: 135. Bibcode:1995ApJS...99..135A. doi:10.1086/192182. ISSN 0067-0049. S2CID 120495962.
  15. ^ "HD 24141". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved June 8, 2023.
  16. ^ Gontcharov, George A.; Mosenkov, Aleksandr V. (28 September 2017). "Verifying reddening and extinction for Gaia DR1 TGAS main sequence stars". Monthly Notices of the Royal Astronomical Society. 472 (4): 3805–3820. arXiv:1709.01160. Bibcode:2017MNRAS.472.3805G. doi:10.1093/mnras/stx2219. eISSN 1365-2966. ISSN 0035-8711. S2CID 118879856.
  17. ^ Renson, P.; Manfroid, J. (19 March 2009). "Catalogue of Ap, HgMn and Am stars". Astronomy & Astrophysics. 498 (3): 961–966. Bibcode:2009A&A...498..961R. doi:10.1051/0004-6361/200810788. eISSN 1432-0746. ISSN 0004-6361. S2CID 55849045.
  18. ^ Abt, Helmut A. (1961). "The Frequency of Binaries among Metalmc-Line Stars". The Astrophysical Journal Supplement Series. 6. American Astronomical Society: 37. Bibcode:1961ApJS....6...37A. doi:10.1086/190060. ISSN 0067-0049. S2CID 121399948.
  19. ^ 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. S2CID 14878976.
  20. ^ Tokovinin, Andrei; Lépine, Sébastien (2012). "Wide Companions to Hipparcos Stars within 67 pc of the Sun". The Astronomical Journal. 144 (4): 102. arXiv:1208.0626. Bibcode:2012AJ....144..102T. doi:10.1088/0004-6256/144/4/102. S2CID 8741733.
  21. ^ Vallenari, A.; et al. (Gaia collaboration) (2023). "Gaia Data Release 3. Summary of the content and survey properties". Astronomy and Astrophysics. 674: A1. arXiv:2208.00211. Bibcode:2023A&A...674A...1G. doi:10.1051/0004-6361/202243940. S2CID 244398875. Gaia DR3 record for this source at VizieR.
Retrieved from "https://en.wikipedia.org/w/index.php?title=HD_24141&oldid=1159343434"