HD 190984

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HD 190984
Observation data
Epoch J2000.0      Equinox J2000.0
Constellation Pavo
Right ascension 20h 11m 30.716s[1]
Declination –64° 37′ 13.69″[1]
Apparent magnitude (V) 8.76[2]
Characteristics
Spectral type F8V[2]
Apparent magnitude (B) 9.27
Apparent magnitude (J) 7.671
Apparent magnitude (H) 7.389
Apparent magnitude (K) 7.319
B−V color index 0.579[2]
Astrometry
Radial velocity (Rv) 20.2 km/s
Proper motion (μ) RA: 0.68 ± 0.73[1] mas/yr
Dec.: 44.57 ± 0.81[1] mas/yr
Parallax (π) 9.8 ± 2.6[2] mas
Distance approx. 330 ly
(approx. 100 pc)
Absolute magnitude (MV) 3.71[2]
Details
Mass 0.91[2] M
Radius 1.53[2] R
Luminosity 2.69[2] L
Surface gravity (log g) 4.02 ± 0.22[2] cgs
Temperature 5988 ± 25[2] K
Metallicity -0.48 ± 0.06[2]
Rotation 23 days
Rotational velocity (v sin i) 3.4[2] km/s
Other designations
CD–64°1271, HIP 99496, PPM 364454
Database references
SIMBAD data
Exoplanet Archive data
Extrasolar Planets
Encyclopaedia
data

HD 190984 is a 9th magnitude F-type main sequence star located approximately 330 light years away in the constellation Pavo. This star is larger, hotter, brighter, and more massive than our Sun. Also its metal content is one-thirds as much as the Sun. In 2009, a gas giant planet was found in orbit around the star.

The HD 190984 planetary system[2]
Companion
(in order from star)
Mass Semimajor axis
(AU)
Orbital period
(days)
Eccentricity Inclination Radius
b ≥3.1 MJ 5.5 4885 ± 1600 0.57 ± 0.10

See also[edit]

References[edit]

Coordinates: Sky map 20h 11m 30.7166s, −64° 37′ 13.694″