Delta Volantis

Delta Volantis (δ Vol, δ Volantis) is a solitary[11] star in the southern constellation Volans. It has an apparent visual magnitude of +3.97, which is bright enough to be seen with the naked eye. Based upon parallax measurements, is approximately 740 light years from the Sun.

δ Volantis
Location of δ Volantis
Observation data
Epoch J2000.0      Equinox J2000.0
Constellation Volans
Right ascension 07h 16m 49.82387s[1]
Declination −67° 57′ 25.7484″[1]
Apparent magnitude (V) 3.97[2]
Characteristics
Spectral type F6 II[3]
U−B color index +0.45[2]
B−V color index +0.78[2]
Astrometry
Radial velocity (Rv)22.7±0.3[4] km/s
Proper motion (μ) RA: −4.43[1] mas/yr
Dec.: +107.19[1] mas/yr
Parallax (π)4.42 ± 0.11[1] mas
Distance740 ± 20 ly
(226 ± 6 pc)
Absolute magnitude (MV)−2.80[5]
Details
Radius24[6] R☉
Luminosity1,152[7] L☉
Surface gravity (log g)1.77[8] cgs
Temperature5,386[9] K
Metallicity [Fe/H]0.110[8] dex
Rotational velocity (v sin i)5.6±0.3[9] km/s
Other designations
δ Vol, CP−67°730, FK5 281, HD 57623, HIP 35228, HR 2803, SAO 249809.[10]
Database references
SIMBADdata

This is an F-type bright giant star with a stellar classification of F6 II. It has an estimated radius 24 times that of the Sun, and shines with more than a thousand times the Sun's luminosity. The outer atmosphere has an effective temperature of 5,386 K.

References
  1. van Leeuwen, F. (2007), "Validation of the new Hipparcos reduction", Astronomy and Astrophysics, 474 (2): 653–664, arXiv:0708.1752, Bibcode:2007A&A...474..653V, doi:10.1051/0004-6361:20078357.
  2. Mermilliod, J.-C. (1986), "Compilation of Eggen's UBV data, transformed to UBV (unpublished)", Catalogue of Eggen's UBV Data. SIMBAD, Bibcode:1986EgUBV........0M.
  3. Malaroda, S. (August 1975), "Study of the F-type stars. I. MK spectral types", Astronomical Journal, 80: 637–641, Bibcode:1975AJ.....80..637M, doi:10.1086/111786.
  4. 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.
  5. 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.
  6. Pasinetti Fracassini, L. E.; et al. (2001), "Catalogue of Apparent Diameters and Absolute Radii of Stars (CADARS) - Third edition - Comments and statistics", Astronomy & Astrophysics, 367: 521–24, arXiv:astro-ph/0012289, Bibcode:2001A&A...367..521P, doi:10.1051/0004-6361:20000451.
  7. McDonald, I.; et al. (2012), "Fundamental Parameters and Infrared Excesses of Hipparcos Stars", Monthly Notices of the Royal Astronomical Society, 427 (1): 343–57, arXiv:1208.2037, Bibcode:2012MNRAS.427..343M, doi:10.1111/j.1365-2966.2012.21873.x.
  8. Soubiran, C.; et al. (June 2010), "The PASTEL catalogue of stellar parameters", Astronomy and Astrophysics, 515: A111, arXiv:1004.1069, Bibcode:2010A&A...515A.111S, doi:10.1051/0004-6361/201014247.
  9. Ammler-von Eiff, M.; Reiners, A. (2012), "New measurements of rotation and differential rotation in A-F stars: Are there two populations of differentially rotating stars?", Astronomy & Astrophysics, 542: A116, arXiv:1204.2459, Bibcode:2012A&A...542A.116A, doi:10.1051/0004-6361/201118724.
  10. "del Vol -- Star", SIMBAD Astronomical Database, Centre de Données astronomiques de Strasbourg, retrieved 2016-09-04.
  11. Eggleton, P. P.; Tokovinin, A. A. (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.


This article is issued from Wikipedia. The text is licensed under Creative Commons - Attribution - Sharealike. Additional terms may apply for the media files.