gam1 Leo b
Orbiting gam1 Leo
gam1 Leo b is an exoplanet orbiting the star gam1 Leo, discovered in 2009 using the Radial Velocity method.
Minimum Mass (M sin i)
2790.43
Earth masses
Orbital Period
428.5
days
Distance
39.9
parsecs
Radius (Earth radii)
Unknown
Minimum Mass, M sin(i) (Earth masses)
2790.43
Radial-velocity minimum
Equilibrium Temperature
Unknown
Parameter source: Han et al. 2010
Orbital Period
428.500+1.250−1.250days
Semi-Major Axis
1.1900+0.0200−0.0200au
M sin(i) (Earth masses)
2790.43+317.82−317.82
M sin(i) (Jupiter masses)
8.7800+1.0000−1.0000
Eccentricity
0.1440+0.0460−0.0460
Epoch of Periastron
2451236.00+13.50−13.50days
Argument of Periastron
206.7+9.2−9.2deg
Radial Velocity Semi-Amplitude
208.30+4.30−4.30m/s
Distance from Earth
39.9 pc (~130 ly)
Spectral Type
Unknown
Temperature
4330 K
Mass (Solar)
1.23 M☉
Radius (Solar)
31.88 R☉
Luminosity
Unknown
Planets in System
1
Stars in System
2
Coordinates (RA, Dec)
154.9932°, 19.8414°
Discovery Method
Radial Velocity
Discovery Year
2009
Source ID: gam1 Leo b
gam1 Leo b orbits gam1 Leo and was reported in 2009 and was detected with the Radial Velocity method.
Published measurements list a minimum mass of 2,790.43 Earth masses (M sin i) and an orbital period of 428.5 days.
Catalog data places the system at about 39.9 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 gam1 Leo