13 Vulpeculae

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13 Vulpeculae
Vulpecula constellation map.svg
Red circle.svg
Location of 13 Vulpeculae (circled)
Observation data
Epoch J2000       Equinox J2000
Constellation Vulpecula
13 Vulpeculae A
Right ascension 19h 53m 27.6957s [1]
Declination 24° 04′ 46.608″ [1]
Apparent magnitude  (V)4.584±0.008 [2]
13 Vulpeculae B
Right ascension 19h 53m 27.6102s [3]
Declination 24° 04′ 46.077″ [3]
Characteristics
Spectral type B9.5III [4]
Apparent magnitude  (U)4.404±0.012 [2]
Apparent magnitude  (B)4.536±0.010 [2]
Astrometry
13 Vulpeculae A
Radial velocity (Rv)−28.10 [5]  km/s
Proper motion (μ)RA: 22.325±0.065 [1]   mas/yr
Dec.: 36.510±0.072 [1]   mas/yr
Parallax (π)9.6342 ± 0.0902  mas [1]
Distance 339 ± 3  ly
(103.8 ± 1.0  pc)
Absolute magnitude  (MV)−0.48 [4]
13 Vulpeculae B
Proper motion (μ)RA: 14.037±0.135 [3]   mas/yr
Dec.: 32.954±0.131 [3]   mas/yr
Parallax (π)9.8828 ± 0.1524  mas [3]
Distance 330 ± 5  ly
(101 ± 2  pc)
Orbit [6]
Period (P)615.25±104.12 yr
Semi-major axis (a)1.555±0.241″
Eccentricity (e)0.079±0.042
Inclination (i)85.9±1.5°
Longitude of the node (Ω)68.1±0.3°
Periastron epoch (T)2027.82±94.79
Argument of periastron (ω)
(secondary)		169.7±4.4°
Details
13 Vul A
Radius 1.3 [7]   R☉
Luminosity 180 [4]   L☉
Temperature 8,801 [8]   K
Metallicity [Fe/H]−0.11 [4]   dex
Rotational velocity (v sin i)45.0 [9]  km/s
Other designations
13 Vul, BD+23°3820, GC  27544, HD  188260, HIP  97886, HR  7592, SAO  87883, CCDM J19535+2405AB, WDS J19535+2405AB, 2MASS J19532768+2404464 [10]
Database references
SIMBAD data

13 Vulpeculae is a blue giant with a stellar classification of class B9.5III [4] in the northern constellation Vulpecula. It is visible to the naked eye as a faint, blue-white hued star with an apparent visual magnitude of 4.57 [4] and it is approximately 339 light years away from the Sun based on parallax. The star is radiating 180 [4] times the luminosity of the Sun from its photosphere at an effective temperature of 8,801 K. [8]

There is one reported companion, designated component B, with a magnitude of 7.37, an orbital period of roughly 615 years, and an angular separation of 1.55″ . [11] The system is moving closer to the Earth with a heliocentric radial velocity of −28 km/s. [5]

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<span class="mw-page-title-main">15 Vulpeculae</span> Star in the constellation Vulpecula

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<span class="mw-page-title-main">12 Vulpeculae</span> Star in the constellation Vulpecula

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<span class="mw-page-title-main">27 Vulpeculae</span> Star in the constellation Vulpecula

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<span class="mw-page-title-main">Pi Pavonis</span> Astrometric binary star system in the constellation Pavo

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<span class="mw-page-title-main">HD 199223</span> Double star in the constellation Delphinus.

HD 199223 is a double star in the equatorial constellation Delphinus. However, the system was originally in Equuleus prior to the creation of official IAU constellation borders. The components have a separation of 2″ at a position angle of 282° as of 2016. They have apparent magnitudes of 6.34 and 7.49 and distances of 354 and 359 light years respectively. The system is drifting closer with a radial velocity of −33 km/s.

References

  1. 1 2 3 4 5 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. (Erratum:  doi:10.1051/0004-6361/202039657e). Gaia EDR3 record for this source at VizieR.
  2. 1 2 3 Harmanec, P.; et al. (2020). "A new study of the spectroscopic binary 7 Vul with a Be star primary". Astronomy and Astrophysics. 639. Table A.1. arXiv: 2005.11089 . Bibcode:2020A&A...639A..32H. doi:10.1051/0004-6361/202037964. S2CID   218862853.
  3. 1 2 3 4 5 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. (Erratum:  doi:10.1051/0004-6361/202039657e). Gaia EDR3 record for this source at VizieR.
  4. 1 2 3 4 5 6 7 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. S2CID   119257644. Vizier catalog entry
  5. 1 2 Gontcharov, G. A. (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. S2CID   119231169.
  6. ↑ Hartkopf, W. I.; et al. (June 30, 2006), Sixth Catalog of Orbits of Visual Binary Stars, United States Naval Observatory, archived from the original on 2017-08-01, retrieved 2017-06-02.
  7. ↑ Pasinetti Fracassini, L. E.; et al. (February 2001). "Catalogue of Apparent Diameters and Absolute Radii of Stars (CADARS)". Astronomy and Astrophysics (Third ed.). 367 (2): 521–524. arXiv: astro-ph/0012289 . Bibcode:2001A&A...367..521P. doi:10.1051/0004-6361:20000451. S2CID   425754.
  8. 1 2 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 (1): 343–357. arXiv: 1208.2037 . Bibcode:2012MNRAS.427..343M. doi:10.1111/j.1365-2966.2012.21873.x. S2CID   118665352. Vizier catalog entry
  9. ↑ Glebocki, R.; Gnacinski, P. (2005). "VizieR Online Data Catalog: Catalog of Stellar Rotational Velocities (Glebocki+ 2005)". VizieR On-line Data Catalog: III/244. Originally Published in: 2005csss...13..571G; 2005yCat.3244....0G. 3244. Bibcode:2005yCat.3244....0G. Vizier catalog entry
  10. ↑ "13 Vul". SIMBAD . Centre de données astronomiques de Strasbourg . Retrieved 2019-03-15.
  11. ↑ 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
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