HD 5278 b
Orbiting HD 5278
HD 5278 b is an exoplanet orbiting the star HD 5278, discovered in 2021 using the Transit method. It is a Super-Earth world.
Radius
2.45
Earth radii
Mass
7.80
Earth masses
Orbital Period
14.3
days
Distance
57.6
parsecs
Equilibrium Temp
943
K
Radius (Earth radii)
2.45
Mass (Earth masses)
7.80
Measured
Equilibrium Temperature
943 K
Parameter source: Sozzetti et al. 2021
Orbital Period
14.339+0.000−0.000days
Semi-Major Axis
0.1202+0.0013−0.0013au
Planet Mass (Earth masses)
7.80+1.50−1.40
Planet Mass (Jupiter masses)
0.0245+0.0047−0.0044
Eccentricity
0.0800+0.0900−0.0500
Argument of Periastron
135.0+34.0−280.0deg
Radial Velocity Semi-Amplitude
1.93+0.34−0.35m/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
Transit
Discovery Year
2021
Source ID: HD 5278 b
HD 5278 b orbits HD 5278 and was reported in 2021 and was detected with the Transit method.
Published measurements list a radius of 2.45 Earth radii, a mass of 7.8 Earth masses, an orbital period of 14.34 days, and an equilibrium temperature near 943 K.
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