Exoplanet · super-Earth
LHS 3844 b
LHS 3844 b is a super-Earth orbiting the star LHS 3844. Its year lasts 0.463 Earth days. It was discovered in 2019 by the Transit method.
| Host star | LHS 3844 |
|---|---|
| Distance | 48.5 light-years (14.9 pc) |
| Orbital period | 11.1 hours |
| Orbital radius | 0.00624 AU |
| Eccentricity | 0.000 |
| Radius | 1.29 R⊕ · 0.115 R♃ |
| Mass | 2.37 M⊕ · 0.00746 M♃ |
| Density | 6.15 g/cm³ |
| Surface gravity | 1.43 × Earth |
| Equilibrium temperature | 816 K (543 °C) |
| Stellar flux received | 73.7 × Earth |
| Discovery method | Transit |
| Discovery year | 2019 |
| Discovered by | Transiting Exoplanet Survey Satellite (TESS) |
Habitable zone
Inside the inner edge of the habitable zone: it receives 73.7 times the light the Earth does, too hot to keep liquid water on its surface.
Its star in the sky
In the planet's sky its star is a disc 16° across: 30 times the Sun as we see it from Earth.
In the sky
A telescope is needed to see it: its apparent magnitude is 15.27. Visible from the whole Southern Hemisphere and north to latitude 21° N. South of latitude 21° S it never sets. It stands highest at midnight in August, the best time to observe it.
Light's journey
The light you see tonight set out around the year 1977. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 861 thousand years.
Data: NASA Exoplanet Archive, PSCompPars. Its look in the simulation is a rendering based on the measured radius, mass and temperature.