HD 457 b
Orbiting HD 457
HD 457 b is an exoplanet orbiting the star HD 457, discovered in 2022 using the Radial Velocity method.
Mass
8445.34
Earth masses
Orbital Period
20324.6
days
Distance
55.0
parsecs
Radius (Earth radii)
Unknown
Mass (Earth masses)
8445.34
Measured
Equilibrium Temperature
Unknown
Parameter source: Feng et al. 2022
Orbital Period
20324.582+11483.955−7039.200days
Semi-Major Axis
15.3690+5.5610−3.7970au
Planet Mass (Earth masses)
8445.34+5952.29−3798.69
Planet Mass (Jupiter masses)
26.5720+18.7280−11.9520
Eccentricity
0.5650+0.1950−0.2450
Epoch of Periastron
2444966.63+3537.18−7710.76days(BJD)
Argument of Periastron
240.3+23.6−14.0deg
Radial Velocity Semi-Amplitude
191.44+86.10−72.77m/s
Distance from Earth
55.0 pc (~180 ly)
Spectral Type
Unknown
Temperature
Unknown
Mass (Solar)
1.15 M☉
Radius (Solar)
Unknown
Luminosity
Unknown
Planets in System
1
Stars in System
1
Coordinates (RA, Dec)
2.2493°, -39.7372°
Discovery Method
Radial Velocity
Discovery Year
2022
Source ID: HD 457 b
HD 457 b orbits HD 457 and was reported in 2022 and was detected with the Radial Velocity method.
Published measurements list a mass of 8,445.34 Earth masses and an orbital period of 20,324.58 days.
Catalog data places the system at about 55 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 457