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23 Vulpeculae

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23 Vulpeculae
Location of 23 Vulpeculae (circled)
Observation data
Epoch J2000      Equinox J2000
Constellation Vulpecula
Right ascension 20h 15m 46.13481s[1]
Declination 27° 48′ 51.2787″[1]
Apparent magnitude (V) 4.52[2]
Characteristics
Spectral type K3III Fe-1[3]
U−B color index +1.11[2]
B−V color index +1.26[2]
Astrometry
Radial velocity (Rv)+1.47[4] km/s
Proper motion (μ) RA: -34.27[1] mas/yr
Dec.: +6.41[1] mas/yr
Parallax (π)9.63 ± 0.46 mas[1]
Distance340 ± 20 ly
(104 ± 5 pc)
Absolute magnitude (MV)-0.58[3]
Details
Mass2.4[5] M☉
Luminosity146 [3] L☉
Surface gravity (log g)0.89[6] cgs
Temperature4,429[7] K
Metallicity [Fe/H]+0.03[3] dex
Rotational velocity (v sin i)3.7[8] km/s
Other designations
BD+27° 3666, CCDM J20158+2749ABC, GC 28152, HIP 99874, HR 7744, HD 192806, SAO 88428, WDS J20158+2749AB
Database references
SIMBADdata

23 Vulpeculae is a class K3III[3] (orange giant) star in a triple star system in the constellation Vulpecula. Its apparent magnitude is 4.52[2] and it is approximately 339 light years away based on parallax.[1] It has two reported companions; Ab has a separation of 0.11", a magnitude of 6.5, and a period of about 25 years, while B has a separation of 0.26" and a magnitude of 6.94.[5][9][10]

References

  1. ^ a b c d e f Van Leeuwen, F. (2007). "Validation of the new Hipparcos reduction". Astronomy and Astrophysics. 474 (2): 653. arXiv:0708.1752. Bibcode:2007A&A...474..653V. doi:10.1051/0004-6361:20078357. Vizier catalog entry
  2. ^ a b c d Ducati, J. R. (2002). "VizieR Online Data Catalog: Catalogue of Stellar Photometry in Johnson's 11-color system". CDS/ADC Collection of Electronic Catalogues. 2237. Bibcode:2002yCat.2237....0D.
  3. ^ a b c d e Anderson, E.; Francis, Ch. (2012). "XHIP: An extended hipparcos compilation". Astronomy Letters. 38 (5): 331. arXiv:1108.4971. Bibcode:2012AstL...38..331A. doi:10.1134/S1063773712050015. Vizier catalog entry
  4. ^ Famaey, B.; Jorissen, A.; Luri, X.; Mayor, M.; Udry, S.; Dejonghe, H.; Turon, C. (2005). "Local kinematics of K and M giants from CORAVEL/Hipparcos/Tycho-2 data". Astronomy & Astrophysics. 430: 165. arXiv:astro-ph/0409579. Bibcode:2005A&A...430..165F. doi:10.1051/0004-6361:20041272.
  5. ^ a b Malkov, O. Yu.; Tamazian, V. S.; Docobo, J. A.; Chulkov, D. A. (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. Vizier catalog entry
  6. ^ Soubiran, Caroline; Le Campion, Jean-François; Brouillet, Nathalie; Chemin, Laurent (2016). "The PASTEL catalogue: 2016 version". Astronomy & Astrophysics. 591: A118. arXiv:1605.07384. Bibcode:2016A&A...591A.118S. doi:10.1051/0004-6361/201628497.
  7. ^ McDonald, I.; Zijlstra, A. A.; Boyer, M. L. (2012). "Fundamental parameters and infrared excesses of Hipparcos stars". Monthly Notices of the Royal Astronomical Society. 427: 343. arXiv:1208.2037. Bibcode:2012MNRAS.427..343M. doi:10.1111/j.1365-2966.2012.21873.x.{{cite journal}}: CS1 maint: unflagged free DOI (link) Vizier catalog entry
  8. ^ De Medeiros, J. R.; Mayor, M. (1999). "A catalog of rotational and radial velocities for evolved stars". Astronomy and Astrophysics Supplement Series. 139 (3): 433. arXiv:astro-ph/0608248. Bibcode:1999A&AS..139..433D. doi:10.1051/aas:1999401. Vizier catalog entry
  9. ^ Mason, Brian D.; Wycoff, Gary L.; Hartkopf, William I.; Douglass, Geoffrey G.; Worley, Charles E. (2001). "The 2001 US Naval Observatory Double Star CD-ROM. I. The Washington Double Star Catalog". The Astronomical Journal. 122 (6): 3466. Bibcode:2001AJ....122.3466M. doi:10.1086/323920. Vizier catalog entry
  10. ^ Eggleton, P. P.; Tokovinin, A. A. (2008). "A catalogue of multiplicity among bright stellar systems". Monthly Notices of the Royal Astronomical Society. 389 (2): 869. arXiv:0806.2878. Bibcode:2008MNRAS.389..869E. doi:10.1111/j.1365-2966.2008.13596.x.{{cite journal}}: CS1 maint: unflagged free DOI (link) Vizier catalog entry


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