Delta Volantis

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)
Details
Radius24[5] R☉
Luminosity1,152[6] L☉
Surface gravity (log g)1.77[7] cgs
Temperature5,386[8] K
Metallicity [Fe/H]0.110[7] dex
Rotational velocity (v sin i)5.6±0.3[8] km/s
Other designations
δ Vol, CP−67° 730, FK5 281, HD 57623, HIP 35228, HR 2803, SAO 249809.[9]

Delta Volantis (δ Vol, δ Volantis) is a solitary[10] 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.

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. 1 2 3 4 5 van Leeuwen, F. (2007), "Validation of the new Hipparcos reduction", Astronomy and Astrophysics, 474 (2): 653–664, arXiv:0708.1752Freely accessible, Bibcode:2007A&A...474..653V, doi:10.1051/0004-6361:20078357.
  2. 1 2 3 Mermilliod, J.-C. (1986), "Compilation of Eggen's UBV data, transformed to UBV (unpublished)", Catalogue of Eggen's UBV data.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, Bibcode:2006AstL...32..759G, doi:10.1134/S1063773706110065.
  5. ↑ 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/0012289Freely accessible, Bibcode:2001A&A...367..521P, doi:10.1051/0004-6361:20000451.
  6. ↑ 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:1208.2037Freely accessible, Bibcode:2012MNRAS.427..343M, doi:10.1111/j.1365-2966.2012.21873.x.
  7. 1 2 Soubiran, C.; et al. (June 2010), "The PASTEL catalogue of stellar parameters", Astronomy and Astrophysics, 515: A111, arXiv:1004.1069Freely accessible, Bibcode:2010A&A...515A.111S, doi:10.1051/0004-6361/201014247.
  8. 1 2 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:1204.2459Freely accessible, Bibcode:2012A&A...542A.116A, doi:10.1051/0004-6361/201118724.
  9. ↑ "del Vol -- Star", SIMBAD Astronomical Database, Centre de Données astronomiques de Strasbourg, retrieved 2016-09-04.
  10. ↑ 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:0806.2878Freely accessible, Bibcode:2008MNRAS.389..869E, doi:10.1111/j.1365-2966.2008.13596.x.
This article is issued from Wikipedia - version of the 9/6/2016. The text is available under the Creative Commons Attribution/Share Alike but additional terms may apply for the media files.