LHS 3844 b
Description: LHS 3844 b, formally named Kua'kua, is an exoplanet orbiting the red dwarf LHS 3844, about 48.5 light-years away in the constellation Indus, discovered using the Transiting Exoplanet Survey Satellite. It orbits its parent star once every 11 hours, and its radius is 1.32 times that of Earth. It has a low albedo, indicating that its surface may resemble that of the Moon or Mercury. LHS 3844 b probably does not have an atmosphere as almost no heat goes to its night side, and it has a dayside temperature of 1,040 K. The presence of cloudy atmosphere with cloud tops above pressure level of 0.1 bar cannot be excluded though.
Physical Properties
Mass (Jupiter mass): Unknown
Radius (Jupiter radius): 0.116 RJ
Density: 5.59 g/cm³
Equilibrium Temperature: 805.0 K
Orbital Parameters
Orbital Period: 0.46292913 days
Semi-major Axis: 0.00622 AU
Eccentricity: Unknown
Inclination: 88.5°
Host Star Properties
Host Star: LHS 3844
Spectral Type: M5
Temperature: 3036.0 K
Stellar Mass: 0.15 M☉
Stellar Radius: 0.19 R☉
Discovery Information
Planet Letter: b
Object ID: 3.12293
Host ID: 2.101578
Discovery Date: 2019-02
Discovery Year: 2019
Discovery Method: Transit
Discovery Locale: Space
Discovery Facility: Transiting Exoplanet Survey Satellite (TESS)
Discovery Instrument: TESS CCD Array