HD 185018

HD 185018 is supergiant[3] star in the equatorial constellation of Aquila.

HD 185018
Observation data
Epoch J2000      Equinox J2000
Constellation Aquila
Right ascension 19h 36m 52.45500s[1]
Declination +11° 16′ 23.5086″[1]
Apparent magnitude (V) 5.978[2]
Characteristics
Spectral type G0Ib[3]
B−V color index +0.881±0.015[4]
Astrometry
Radial velocity (Rv)+0.50±0.79[1] km/s
Proper motion (μ) RA: 7.929[1] mas/yr
Dec.: 2.719[1] mas/yr
Parallax (π)3.2148 ± 0.0705 mas[1]
Distance1,010 ± 20 ly
(311 ± 7 pc)
Absolute magnitude (MV)−1.81[4]
Details
Mass5.5[3] M☉
Radius25.17+0.37
−0.72[1] R☉
Luminosity395±11[1] L☉
Surface gravity (log g)2.06[3] cgs
Temperature5,131+75
−38[1] K
Metallicity [Fe/H]−0.16[5] dex
Rotational velocity (v sin i)10[3] km/s
Other designations
BD+10°3984, GC 27120, HD 185018, HIP 96481, HR 7456, SAO 105045, PPM 136605, WDS J19369+1116A[6]
Database references
SIMBADdata

References
  1. Brown, A. G. A.; et al. (Gaia collaboration) (August 2018). "Gaia Data Release 2: Summary of the contents and survey properties". Astronomy & Astrophysics. 616. A1. arXiv:1804.09365. Bibcode:2018A&A...616A...1G. doi:10.1051/0004-6361/201833051. Gaia DR2 record for this source at VizieR.
  2. Haggkvist, L.; Oja, T. (1970), "Results of BV photometry 1969-70 (Uppsala refractor)", Private Communication (Private Communication), Bibcode:1970Priv.........0H Private Communication.
  3. Lyubimkov, Leonid S.; et al. (November 2012), "Lithium abundance in atmospheres of F- and G-type supergiants and bright giants", Monthly Notices of the Royal Astronomical Society, 427 (1): 11–26, arXiv:1212.6057, Bibcode:2012MNRAS.427...11L, doi:10.1111/j.1365-2966.2012.21617.x, S2CID 119191810
  4. 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.
  5. Lyubimkov, L. S.; et al. (October 2019), "Oxygen abundance and the N/C versus N/O relation for AFG supergiants and bright giants", Monthly Notices of the Royal Astronomical Society, 489 (2): 1533–1542, arXiv:1907.04634, Bibcode:2019MNRAS.489.1533L, doi:10.1093/mnras/stz2285
  6. "HD 185018". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 2021-10-14.
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