HD 154857 c
Orbiting HD 154857
HD 154857 c is an exoplanet orbiting the star HD 154857, discovered in 2014 using the Radial Velocity method.
Minimum Mass (M sin i)
819.97
Earth masses
Orbital Period
3452.0
days
Distance
63.4
parsecs
Radius (Earth radii)
Unknown
Minimum Mass, M sin(i) (Earth masses)
819.97
Radial-velocity minimum
Equilibrium Temperature
Unknown
Parameter source: Wittenmyer et al. 2014
Orbital Period
3452.000+105.000−105.000days
Semi-Major Axis
5.3600+0.0900−0.0900au
M sin(i) (Earth masses)
819.97+50.85−50.85
M sin(i) (Jupiter masses)
2.5800+0.1600−0.1600
Eccentricity
0.0600+0.0500−0.0500
Epoch of Periastron
2455219.00+375.00−375.00days
Argument of Periastron
352.0+37.0−37.0deg
Radial Velocity Semi-Amplitude
24.20+1.10−1.10m/s
Distance from Earth
63.4 pc (~207 ly)
Spectral Type
G5 V
Temperature
5605 K
Mass (Solar)
1.72 M☉
Radius (Solar)
1.76 R☉
Luminosity
Unknown
Planets in System
2
Stars in System
1
Coordinates (RA, Dec)
257.8162°, -56.6810°
Discovery Method
Radial Velocity
Discovery Year
2014
Source ID: HD 154857 c
HD 154857 c orbits HD 154857 and was reported in 2014 and was detected with the Radial Velocity method.
Published measurements list a minimum mass of 819.97 Earth masses (M sin i) and an orbital period of 3,452 days.
Catalog data places the system at about 63.4 parsecs from Earth, a host star classified as G5 V, and 2 known planets in the system.
Host star
Explore the stellar record for this system to compare temperature, spectral type, and known planets.
Open HD 154857More planets in this system