Observation data Epoch J2000.0 Equinox J2000.0 | |
---|---|
Constellation | Pavo |
Right ascension | 20h 11m 30.71538s[1] |
Declination | −64° 37′ 13.6853″[1] |
Apparent magnitude (V) | 8.76[2] |
Characteristics | |
Spectral type | F8 V[3] |
U−B color index | +0.02[4] |
B−V color index | +0.54[4] |
Astrometry | |
Radial velocity (Rv) | +20.48±0.14[1] km/s |
Proper motion (μ) | RA: +0.193 mas/yr[1] Dec.: +45.355 mas/yr[1] |
Parallax (π) | 6.7060 ± 0.0153 mas[1] |
Distance | 486 ± 1 ly (149.1 ± 0.3 pc) |
Absolute magnitude (MV) | +2.25[5] |
Details | |
Mass | 1.15±0.01[6] M☉ |
Radius | 2.31±0.09[7] R☉ |
Luminosity | 5.88±1.01[8] L☉ |
Surface gravity (log g) | 3.78±0.03[9] cgs |
Temperature | 6,007±25[9] K |
Metallicity | −0.49±0.02[9] |
Rotational velocity (v sin i) | 5[10] km/s |
Age | 4.44±0.10[6] Gyr |
Other designations | |
Database references | |
SIMBAD | data |
Exoplanet Archive | data |
HD 190984, also known as HIP 99496, is a star located in the southern circumpolar constellation Pavo, the peacock. It has an apparent magnitude of 8.76,[2] making it readily visible in small telescopes, but not to the naked eye. Based on parallax measurements from the Gaia spacecraft, the object is estimated to be 486 light years away from the Solar System.[1] It appears to be receding with a heliocentric radial velocity of 20.3 km/s.[12]
GaiaDR3
was invoked but never defined (see the help page).XHIP
was invoked but never defined (see the help page).Houk1975
was invoked but never defined (see the help page).Carney1978
was invoked but never defined (see the help page).Gontcharov2012
was invoked but never defined (see the help page).Gomes da Silva2021
was invoked but never defined (see the help page).Stassun2019
was invoked but never defined (see the help page).GaiaDR2
was invoked but never defined (see the help page).Delgado Mena2017
was invoked but never defined (see the help page).Nordstrom2004
was invoked but never defined (see the help page).SIMBAD
was invoked but never defined (see the help page).Santos2011
was invoked but never defined (see the help page).