GJ 9404 b
Orbiting GJ 9404
GJ 9404 b is an exoplanet orbiting the star GJ 9404, discovered in 2023 using the Radial Velocity method.
Minimum Mass (M sin i)
11.90
Earth masses
Orbital Period
13.5
days
Distance
23.9
parsecs
Radius (Earth radii)
Unknown
Minimum Mass, M sin(i) (Earth masses)
11.90
Radial-velocity minimum
Equilibrium Temperature
Unknown
Parameter source: Baycroft et al. 2023
Orbital Period
13.459+0.004−0.007days
Semi-Major Axis
0.0943+0.0036−0.0036au
M sin(i) (Earth masses)
11.90+1.90−1.90
M sin(i) (Jupiter masses)
0.0374+0.0060−0.0060
Eccentricity
0.4900+0.1100−0.1300
Epoch of Periastron
2457095.30+0.59−0.38days(BJD)
Argument of Periastron
109.0+19.0−19.0deg
Radial Velocity Semi-Amplitude
5.13+1.04−0.85m/s
Distance from Earth
23.9 pc (~78 ly)
Spectral Type
Unknown
Temperature
Unknown
Mass (Solar)
0.62 M☉
Radius (Solar)
Unknown
Luminosity
Unknown
Planets in System
1
Stars in System
1
Coordinates (RA, Dec)
184.8472°, 28.3827°
Discovery Method
Radial Velocity
Discovery Year
2023
Source ID: GJ 9404 b
GJ 9404 b orbits GJ 9404 and was reported in 2023 and was detected with the Radial Velocity method.
Published measurements list a minimum mass of 11.9 Earth masses (M sin i) and an orbital period of 13.46 days.
Catalog data places the system at about 23.9 parsecs from Earth 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 9404