HD 5278 c
Orbiting HD 5278
HD 5278 c is an exoplanet orbiting the star HD 5278, discovered in 2021 using the Radial Velocity method.
Minimum Mass (M sin i)
18.40
Earth masses
Orbital Period
40.9
days
Distance
57.6
parsecs
Radius (Earth radii)
Unknown
Minimum Mass, M sin(i) (Earth masses)
18.40
Radial-velocity minimum
Equilibrium Temperature
Unknown
Parameter source: Sozzetti et al. 2021
Orbital Period
40.870+0.180−0.170days
Semi-Major Axis
0.2416+0.0027−0.0027au
M sin(i) (Earth masses)
18.40+1.80−1.90
M sin(i) (Jupiter masses)
0.0579+0.0057−0.0060
Eccentricity
0.0700+0.0800−0.0400
Argument of Periastron
8.0+120.0−120.0deg
Radial Velocity Semi-Amplitude
3.17+0.34−0.32m/s
Distance from Earth
57.6 pc (~188 ly)
Spectral Type
F V
Temperature
6203 K
Mass (Solar)
1.13 M☉
Radius (Solar)
1.19 R☉
Luminosity
0.28 log L☉
Planets in System
2
Stars in System
1
Coordinates (RA, Dec)
12.5468°, -83.7438°
Discovery Method
Radial Velocity
Discovery Year
2021
Source ID: HD 5278 c
HD 5278 c orbits HD 5278 and was reported in 2021 and was detected with the Radial Velocity method.
Published measurements list a minimum mass of 18.4 Earth masses (M sin i) and an orbital period of 40.87 days.
Catalog data places the system at about 57.6 parsecs from Earth, a host star classified as F 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 5278More planets in this system