astro.wikisort.org - StarHD 185018 is supergiant[3] star in the equatorial constellation of Aquila.
Star in the constellation 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 |
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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] |
Distance | 1,010 ± 20 ly (311 ± 7 pc) |
Absolute magnitude (MV) | −1.81[4] |
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Details |
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Mass | 5.5[3] M☉ |
Radius | 25.17+0.37 −0.72[1] R☉ |
Luminosity | 395±11[1] L☉ |
Surface gravity (log g) | 2.06[3] cgs |
Temperature | 5,131+75 −38[1] K |
Metallicity [Fe/H] | −0.16[5] dex |
Rotational velocity (v sin i) | 10[3] km/s |
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Other designations |
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BD+10° 3984, GC 27120, HD 185018, HIP 96481, HR 7456, SAO 105045, PPM 136605, WDS J19369+1116A[6] |
Database references |
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SIMBAD | data |
References
- 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.
- Haggkvist, L.; Oja, T. (1970), Results of BV photometry 1969-70 (Uppsala refractor) (Private Communication), Bibcode:1970Priv.........0H Private Communication.
- 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
- 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.
- 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
- "HD 185018". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 2021-10-14.
External links
Constellation of Aquila |
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Nebulae | |
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