30 Vulpeculae

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30 Vulpeculae
Location of 30 Vulpeculae (circled)
Observation data
Epoch J2000      Equinox J2000
Constellation Vulpecula
Right ascension 20h 44m 52.50440s[1]
Declination 25° 16′ 14.2162″[1]
Apparent magnitude (V) 4.91[2]
Characteristics
Spectral type K1III[3]
U−B color index +1.18[2]
B−V color index +1.19[2]
Astrometry
Radial velocity (Rv)+30.00[4] km/s
Proper motion (μ) RA: -29.06[1] mas/yr
Dec.: -177.96[1] mas/yr
Parallax (π)10.04 ± 0.47 mas[1]
Distance320 ± 20 ly
(100 ± 5 pc)
Absolute magnitude (MV)-0.07[3]
Details
Luminosity156[3] L☉
Surface gravity (log g)2.47[5] cgs
Temperature4,490[5] K
Metallicity [Fe/H]-0.10[3] dex
Rotational velocity (v sin i)< 1.5[6] km/s
Other designations
BD+24° 4229, FK5 3657, GC 28920, HIP 102388, HR 7939, HD 197752, SAO 89084
Database references
SIMBADdata

30 Vulpeculae is a class K1III[3] (orange giant) star in the constellation Vulpecula. Its apparent magnitude is 4.91[2] and it is approximately 325 light years away based on parallax.[1] It is a spectroscopic binary with an orbit around 2506 days.[7]

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 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.
  6. ^ 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
  7. ^ Pedoussaut, A.; Carquillat, J. M.; Ginestet, N.; Vigneau, J. (1988). "Spectroscopic binaries - 15th complementary catalog". Astronomy and Astrophysics Supplement Series. 75: 441. Bibcode:1988A&AS...75..441P.


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