HD 23523

In this article, we will explore the impact and relevance of HD 23523 in contemporary society. HD 23523 is a topic that has aroused the interest of experts, academics and professionals in various fields, due to its influence on different aspects of daily life. Over the next few lines, we will analyze the implications of HD 23523 in the social, economic, cultural and political spheres, examining how this phenomenon has shaped our perceptions, behaviors and interpersonal relationships. Likewise, we will delve into the different perspectives and debates that have arisen around HD 23523, with the aim of shedding light on its multiple facets and realities.

HD 23523
Location of HD 23523 on the map (circled)
Observation data
Epoch J2000.0      Equinox J2000.0 (ICRS)
Constellation Camelopardalis
Right ascension 03h 49m 36.58592s[1]
Declination +63° 17′ 49.0518″[1]
Apparent magnitude (V) 5.82[2] (6.31 + 7.11)[3]
Characteristics
Spectral type A5 Vn[4]
B−V color index +0.18[5]
Astrometry
Radial velocity (Rv)−9.6±3.4[6] km/s
Proper motion (μ) RA: −11.630 mas/yr[1]
Dec.: −61.457 mas/yr[1]
Parallax (π)13.9498±0.3245 mas[1]
Distance234 ± 5 ly
(72 ± 2 pc)
Absolute magnitude (MV)+1.55[7] (combined)
Orbit[8]
PrimaryHD 23523A[3]
CompanionHD 23523B[3]
Period (P)10.180±0.509 yr
Semi-major axis (a)0.1020±0.0031″
Eccentricity (e)0.441
Details
A
Mass1.75 or 1.81[9] M☉
B
Mass1.64 or 1.51[9] M☉
Other designations
Moaï 1, AG+63°280, BD+62°612, GC 4560, HD 23523, HIP 17891, HR 1158, SAO 12917, WDS J03496+6318AB[10]
Database references
SIMBADdata

HD 23523 (HR 1158) is a binary star[11] located in the northern circumpolar constellation Camelopardalis. It has a combined apparent magnitude of 5.82,[2] making it faintly visible to the naked eye under ideal conditions. When resolved, the primary has an apparent magnitude of 6.31 while the secondary has a magntiude of 7.11.[3] The system is located relatively close at a distance of about 234 light-years based on Gaia DR3 parallax measurements[1] and it currently drifting closer with a somewhat heliocentric radial velocity of −9.6 km/s.[6] At its current distance, HD 23523's combined brightness is diminished by 0.16 magnitudes due to interstellar extinction[12] and it has a combined absolute magnitude of +1.55.[7]

The system was first discovered to be a double star in 1996 by Marcel Carbillet and colleagues after speckle interferometry observations.[13] The stars are only about a tenth of an arcsecond apart,[3] making observing their individual properties difficult. The discovery paper suggested that the two components might be equal based on the dynamical mass.[13] Overall, HD 23523 has a stellar classification of A5 Vn,[4] indicating that it is an A-type main-sequence star with broad or nebulous absorption lines due to rapid rotation. The primary has a mass either 1.75 or 1.81 times the mass of the Sun while the companion has a mass 1.64 or 1.51 times that of the Sun,[9] depending on the approach.

References

  1. ^ a b c d e 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 c d e 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.
  4. ^ a b Cowley, A.; Cowley, C.; Jaschek, M.; Jaschek, C. (April 1969). "A study of the bright stars. I. A catalogue of spectral classifications". The Astronomical Journal. 74: 375. Bibcode:1969AJ.....74..375C. doi:10.1086/110819. ISSN 0004-6256. S2CID 121555804.
  5. ^ Ljunggren, B.; Oja, T. (1965). "Photoelectric measurements of magnitudes and colours for 849 stars". Arkiv för Astronomi. 3: 439–465. Bibcode:1965ArA.....3..439L. ISSN 0004-2048.
  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. ^ Malkov, O. Yu.; Tamazian, V. S.; Docobo, J. A.; Chulkov, D. A. (October 2012). "Dynamical masses of a selected sample of orbital binaries". Astronomy & Astrophysics. 546: A69. Bibcode:2012A&A...546A..69M. doi:10.1051/0004-6361/201219774. eISSN 1432-0746. ISSN 0004-6361. S2CID 122594428.
  9. ^ a b c Cvetkovic, Zorica; Ninkovic, S. (June 2010). "On the component masses of visual binaries". Serbian Astronomical Journal. 180 (180): 71–80. Bibcode:2010SerAJ.180...71C. doi:10.2298/SAJ1080071C. S2CID 54938242.
  10. ^ "HD 23523". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved June 22, 2023.
  11. ^ 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.
  12. ^ 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.
  13. ^ a b Carbillet, M.; Lopez, B.; Aristidi, E.; Bresson, Y.; Aime, C.; Ricort, G.; Prieur, J. -L.; Koechlin, L.; Helmer, G.; Lefevre, J.; Cruzalebes, P. (October 1996). "Discovery of a new bright close double star". Astronomy and Astrophysics. 314: 112–114. Bibcode:1996A&A...314..112C. ISSN 0004-6361. S2CID 116630348.