HD 21693 c
Orbiting HD 21693
HD 21693 c is an exoplanet orbiting the star HD 21693, discovered in 2019 using the Radial Velocity method.
Minimum Mass (M sin i)
17.37
Earth masses
Orbital Period
53.7
days
Distance
33.3
parsecs
Radius (Earth radii)
Unknown
Minimum Mass, M sin(i) (Earth masses)
17.37
Radial-velocity minimum
Equilibrium Temperature
Unknown
Parameter source: Udry et al. 2019
Orbital Period
53.736+0.031−0.031days
Semi-Major Axis
0.2586+0.0103−0.0113au
M sin(i) (Earth masses)
17.37+1.77−1.79
M sin(i) (Jupiter masses)
0.0547+0.0056−0.0056
Eccentricity
0.0700+0.0600−0.0500
Epoch of Periastron
2455528.41+7.08−8.18days(BJD)
Argument of Periastron
-17.3+47.5−55.4deg
Radial Velocity Semi-Amplitude
3.44+0.20−0.20m/s
Distance from Earth
33.3 pc (~108 ly)
Spectral Type
G8 V
Temperature
5430 K
Mass (Solar)
0.80 M☉
Radius (Solar)
Unknown
Luminosity
-0.21 log L☉
Planets in System
2
Stars in System
1
Coordinates (RA, Dec)
51.8040°, -58.3233°
Discovery Method
Radial Velocity
Discovery Year
2019
Source ID: HD 21693 c
HD 21693 c orbits HD 21693 and was reported in 2019 and was detected with the Radial Velocity method.
Published measurements list a minimum mass of 17.37 Earth masses (M sin i) and an orbital period of 53.74 days.
Catalog data places the system at about 33.3 parsecs from Earth, a host star classified as G8 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 21693More planets in this system