HD 190228 b
Orbiting HD 190228
HD 190228 b is an exoplanet orbiting the star HD 190228, discovered in 2022 using the Radial Velocity method.
Mass
1598.68
Earth masses
Orbital Period
1143.6
days
Distance
62.7
parsecs
Radius (Earth radii)
Unknown
Mass (Earth masses)
1598.68
Measured
Equilibrium Temperature
Unknown
Parameter source: Feng et al. 2022
Orbital Period
1143.599+1.767−1.707days
Semi-Major Axis
2.4060+0.0450−0.0470au
Planet Mass (Earth masses)
1598.68+378.22−0.95
Planet Mass (Jupiter masses)
5.0300+1.1900−0.0030
Eccentricity
0.5590+0.0100−0.0100
Epoch of Periastron
2452380.91+4.92−5.03days(BJD)
Argument of Periastron
97.2+1.6−1.5deg
Radial Velocity Semi-Amplitude
92.94+1.32−1.16m/s
Distance from Earth
62.7 pc (~205 ly)
Spectral Type
Unknown
Temperature
Unknown
Mass (Solar)
1.42 M☉
Radius (Solar)
Unknown
Luminosity
Unknown
Planets in System
1
Stars in System
1
Coordinates (RA, Dec)
300.7537°, 28.3066°
Discovery Method
Radial Velocity
Discovery Year
2022
Source ID: HD 190228 b
HD 190228 b orbits HD 190228 and was reported in 2022 and was detected with the Radial Velocity method.
Published measurements list a mass of 1,598.68 Earth masses and an orbital period of 1,143.6 days.
Catalog data places the system at about 62.7 parsecs from Earth and 1 known planet in the system.
Host star
Explore the stellar record for this system to compare temperature, spectral type, and known planets.
Open HD 190228