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] |
Distance | 1,010 ± 20 ly (311 ± 7 pc) |
Absolute magnitude (MV) | −1.81[4] |
Details | |
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 |
Other designations | |
Database references | |
SIMBAD | data |
HD 185018 is supergiant[3] star in the equatorial constellation of Aquila.
GaiaDR2
was invoked but never defined (see the help page).haggkvist_oja
was invoked but never defined (see the help page).mnras417_1_11
was invoked but never defined (see the help page).Anderson_Francis_2012
was invoked but never defined (see the help page).Lyubimkov_et_al_2019
was invoked but never defined (see the help page).SIMBAD
was invoked but never defined (see the help page).