HD 185018
HD 185018 is supergiant[3] star in the equatorial constellation of Aquila.
| 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 | |
| Database references | |
| SIMBAD | data |
References
- 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.
- 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
- 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.
- 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:1208.2037, Bibcode:2012MNRAS.427..343M, doi:10.1111/j.1365-2966.2012.21873.x
External links
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