Delta Volantis

δ Volantis

Location of δ Volantis
Observation data Epoch J2000.0      Equinox J2000.0
Constellation	Volans
Right ascension	07^h 16^m 49.82387^s[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 mas/yr[1] Dec.: +8.38 mas/yr[1]
Parallax (π)	4.42±0.11 mas[1]
Distance	740 ± 20 ly (226 ± 6 pc)
Absolute magnitude (MV)	−2.6[5]
Details
Mass	5[5] M☉
Radius	36.1[6] R☉
Luminosity	1,095±57[6] L☉
Surface gravity (log g)	1.77[7][8] cgs
Temperature	5,637[8] K
Metallicity [Fe/H]	+0.11[7][8] dex
Rotational velocity (v sin i)	5.6±0.3[9] km/s
Other designations
δ Vol, CPD−67°730, FK5 281, HD 57623, HIP 35228, HR 2803, SAO 249809[10]
Database references
SIMBAD	data

Delta Volantis, Latinized from 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 Solar System.

This is an F-type bright giant star with a stellar classification of F6 II. It has five times Sun's mass,^[5] an estimated radius 36 times that of the Sun, and shines with more than a thousand times the Sun's luminosity.^[5] The outer atmosphere has an effective temperature of 5,637 K,^[8] giving it a yellow hue.^[12]

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, S2CID 18759600.
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 Mermilliod, J.-C. (1986), "Compilation of Eggen's UBV data, transformed to UBV (unpublished)", Catalogue of Eggen's UBV Data.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, S2CID 119231169.
5. Smith, Graeme H.; Langland-Shula, Laura E. (May 2023), "FUSE Spectroscopy of Two Luminosity Class II Giants", Research Notes of the AAS, 7 (5): 98, Bibcode:2023RNAAS...7...98S, doi:10.3847/2515-5172/acd6e9, ISSN 2515-5172.
6. McDonald, I.; Zijlstra, A. A.; Watson, R. A. (2017-10-01), "Fundamental parameters and infrared excesses of Tycho-Gaia stars", Monthly Notices of the Royal Astronomical Society, 471 (1): 770–791, arXiv:1706.02208, Bibcode:2017MNRAS.471..770M, doi:10.1093/mnras/stx1433, ISSN 0035-8711. Delta Volantis' database entry at VizieR.
7. 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, S2CID 118362423.
8. Luck, R. Earle (2014). "Parameters and Abundances in Luminous Stars". The Astronomical Journal. 147 (6): 137. Bibcode:2014AJ....147..137L. doi:10.1088/0004-6256/147/6/137. Delta Volantis' database entry at VizieR.
9. Ammler-von Eiff, Matthias; Reiners, Ansgar (June 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, S2CID 53666672.
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, S2CID 14878976.
12. "The Colour of Stars", Australia Telescope, Outreach and Education, Commonwealth Scientific and Industrial Research Organisation, December 21, 2004, archived from the original on 2013-12-03, retrieved 2012-01-16