HD 185018

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HD 185018
Observation data
Epoch J2000      Equinox J2000
Constellation Aquila
Right ascension 19h 36m 52.45249s[1]
Declination +11° 16′ 23.5331″[1]
Apparent magnitude (V) 5.978[2]
Characteristics
Spectral type G0Ib[3]
B−V color index +0.881[2]
Astrometry
Radial velocity (Rv) +0.50[4] km/s
Proper motion (μ) RA: 9.19[1] mas/yr
Dec.: 2.32[1] mas/yr
Parallax (π) 2.69 ± 0.42[1] mas
Distance approx. 1,200 ly
(approx. 370 pc)
Details
Mass 5.5[3] M
Luminosity 586[5] L
Surface gravity (log g) 2.06[3] cgs
Temperature 5,550[3] K
Rotational velocity (v sin i) 10[3] km/s
Other designations
BD+10° 3984, HD 185018, HIP 96481, HR 7456, SAO 105045.
Database references
SIMBAD data

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

References[edit]

  1. ^ a b c d e 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. ^ a b Haggkvist, L.; Oja, T. (1970), Results of BV photometry 1969-70 (Uppsala refractor) (Private Communication), Bibcode:1970Priv.........0H  Private Communication.
  3. ^ a b c d e f 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:1212.6057Freely accessible, Bibcode:2012MNRAS.427...11L, doi:10.1111/j.1365-2966.2012.21617.x 
  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:1606.08053Freely accessible. Bibcode:2006AstL...32..759G. doi:10.1134/S1063773706110065. 
  5. ^ 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 

External links[edit]