ExoAtmospheres
IAC community database for exoplanet atmospheric observations

 

LHS 3844 b

Planet status Confirmed
Planet type Hot Super-Earth
Period 0.46292792 d
Mass 0.0093 MJ 2.95554 M⊕
Radius 0.1178 RJ 1.31936 R⊕
Semi major axis 0.00623 AU
Star name LHS 3844
Star distance 14.9 pc
Star teff 3036 K
Star radius 0.189 R☉
Temperature (calculated) 805 K
V 15.2 mag
J 10.046 mag
K 9.145001 mag
Alternate names TIC 410153553 b
Exoplanet Encyclopaedia

Molecules

Dayside Temperature (occultation): 999999 K

JWST-MIRI

Improved Constraints on the Surface of LHS 3844 b from its Mid-Infrared Spectrum

2026, Kimberly Paragas, Heather A. Knutson et al.

emission spectrum resembles a blackbody shortward of 10 μm

Featureless spectra: Detection

JWST-MIRI

The dark and featureless surface of rocky exoplanet LHS 3844 b from JWST mid-infrared spectroscopy

2026, Sebastian Zieba, Laura Kreidberg et al.

results are well fit by an old, space-weathered surface with no evidence of accumulated volcanic gases.

Phase curve: Yes

Spitzer

Super-Earth LHS3844b is tidally locked

2023, Xintong Lyu, Daniel D. B. Koll et al.

Super-Earth LHS3844b is tidally locked

G-B: Low resolution visible

Optical Transmission Spectroscopy of the Terrestrial Exoplanet LHS 3844b from 13 Ground-based Transit Observations

2020, Diamond-Lowe, Hannah, Charbonneau, David et al.

No clear, low mean molecular weight (H/He-dominated) atmosphere