TOI-199 b
Orbiting TOI-199
TOI-199 b is an exoplanet orbiting the star TOI-199, discovered in 2023 using the Transit method. It is a Neptune-sized world.
Radius
9.08
Earth radii
Mass
54.03
Earth masses
Orbital Period
104.9
days
Distance
102.3
parsecs
Radius (Earth radii)
9.08
Mass (Earth masses)
54.03
Measured
Equilibrium Temperature
Unknown
Parameter source: Hobson et al. 2023
Orbital Period
104.854+0.001−0.002days
Semi-Major Axis
0.4254+0.0020−0.0020au
Planet Mass (Earth masses)
54.03+6.36−6.36
Planet Mass (Jupiter masses)
0.1700+0.0200−0.0200
Eccentricity
0.0900+0.0100−0.0200
Argument of Periastron
350.0+2.0−4.0deg
Radial Velocity Semi-Amplitude
7.70+1.10−1.10m/s
Distance from Earth
102.3 pc (~334 ly)
Spectral Type
G9 V
Temperature
5255 K
Mass (Solar)
0.94 M☉
Radius (Solar)
0.82 R☉
Luminosity
-0.34 log L☉
Planets in System
2
Stars in System
1
Coordinates (RA, Dec)
80.1059°, -59.8954°
Discovery Method
Transit
Discovery Year
2023
Source ID: TOI-199 b
TOI-199 b orbits TOI-199 and was reported in 2023 and was detected with the Transit method.
Published measurements list a radius of 9.08 Earth radii, a mass of 54.03 Earth masses, and an orbital period of 104.85 days.
Catalog data places the system at about 102.3 parsecs from Earth, a host star classified as G9 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 TOI-199More planets in this system