GJ 4276 b
Orbiting GJ 4276
GJ 4276 b is an exoplanet orbiting the star GJ 4276, discovered in 2019 using the Radial Velocity method.
Minimum Mass (M sin i)
16.57
Earth masses
Orbital Period
13.4
days
Distance
21.3
parsecs
Radius (Earth radii)
Unknown
Minimum Mass, M sin(i) (Earth masses)
16.57
Radial-velocity minimum
Equilibrium Temperature
Unknown
Parameter source: Nagel et al. 2019
Orbital Period
13.352+0.003−0.003days
Semi-Major Axis
0.0820+0.0020−0.0020au
M sin(i) (Earth masses)
16.57+0.94−0.95
M sin(i) (Jupiter masses)
0.0521+0.0030−0.0030
Eccentricity
0.3700+0.0300−0.0300
Epoch of Periastron
2457576.72+0.19−0.17days(BJD)
Argument of Periastron
216.8+4.7−4.6deg
Radial Velocity Semi-Amplitude
8.79+0.27−0.27m/s
Distance from Earth
21.3 pc (~70 ly)
Spectral Type
M4.0
Temperature
3387 K
Mass (Solar)
0.41 M☉
Radius (Solar)
0.41 R☉
Luminosity
-1.71 log L☉
Planets in System
1
Stars in System
1
Coordinates (RA, Dec)
336.3221°, 59.4125°
Discovery Method
Radial Velocity
Discovery Year
2019
Source ID: GJ 4276 b
GJ 4276 b orbits GJ 4276 and was reported in 2019 and was detected with the Radial Velocity method.
Published measurements list a minimum mass of 16.57 Earth masses (M sin i) and an orbital period of 13.35 days.
Catalog data places the system at about 21.3 parsecs from Earth, a host star classified as M4.0, 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 GJ 4276