- weight
- 1.43 g
- sun
- 30.1× wider
- sky
- dim red
Illustration computed from this world’s measured and derived values, not a photograph.
LHS 3844 b
LHS 3844 b is a confirmed rocky exoplanet 48.5 ly from Earth in the constellation Indus, discovered in 2019 by Transiting Exoplanet Survey Satellite (TESS).
Transit: spotted by the tiny, repeating dip in its star’s light each time the planet crosses in front of it.
Standing on LHS 3844 b, you would weigh about 43% more than you do on Earth. Its red dwarf looks 30.1× wider than ours, bathing the surface in dim red light. It is likely tidally locked, so that sun never moves in the sky: one hemisphere in endless day, the other in permanent night. A year passes in just 11.1 hours, and at an estimated 543°C (1009°F) it is furnace-hot.
How closely this world matches Earth in size and warmth, from 0 to 1 (Earth = 1.0). Computed by gravityfinder. See every world ranked →
What these mean: surface gravity · tidal locking · equilibrium temperature · Earth similarity
If your children grew up herea playful thought experiment
A little heavier than home, at 1.4 times Earth's gravity. A child raised here would likely grow a little shorter and sturdier than their Earth-raised parents, about 0.93x as tall as on Earth: a 5 ft 10 in adult could stand nearer 5 ft 5 in, with denser bones.
- Bones
- Thick and dense
- More weight to bear forces the skeleton to grow denser and stronger all through childhood.
A playful thought experiment from this world’s gravity, not a prediction about any real person. No human has ever grown up off Earth, so no one truly knows; the direction (taller in low gravity, shorter and stockier in high) follows how growing bodies respond to weight.
Hear how a voice sounds herea computed acoustic demo
Your voice would sound high and thin, almost cartoonish.
Assuming Earth-like air at this world's temperature of about 543°C (1009°F), sound would travel roughly 68% faster than on Earth, so your voice would sound high and thin, almost cartoonish. The real atmosphere is unknown, so this is a best guess.
A real voice sample, pitch-shifted (tempo held constant) to suggest the acoustics: a playful approximation, not a precise simulation. Voice: Lingua Libre / Vealhurl, CC BY-SA 4.0.
- !Furnace-hot at around 543°C (1009°F), with no liquid water and no shade anywhere.
- Surface gravity is close to Earth's, 1.43 times, so you would move much as you do here.
- !Its star delivers about 74 times the sunlight Earth gets, a blinding, sterilizing glare.
- !Likely tidally locked: one hemisphere in endless day, the other in permanent night.
A playful read of LHS 3844 b’s measured and computed values, not a real advisory.
How long to get there · 48.5 ly away
No other confirmed planets here yet. New ones auto-appear as telescopes report.
Zoom out: star → system → (soon) galaxy arm, host black hole, and a real image of the host galaxy.
Matched telescope & eyepiece recommendations are coming. Any product links will carry a clear affiliate disclosure.
What is the gravity on LHS 3844 b?
LHS 3844 b's surface gravity is about 1.4 times Earth's.
How much would you weigh on LHS 3844 b?
Someone who weighs 150 pounds on Earth would weigh about 215 pounds on LHS 3844 b.
How far is LHS 3844 b from Earth?
LHS 3844 b lies about 48.5 light-years from Earth.
How long would it take to get to LHS 3844 b?
At the speed of NASA's Parker Solar Probe, the fastest craft ever built, the journey would take about 75,714 years.
How hot is LHS 3844 b?
LHS 3844 b's equilibrium temperature, the balance it reaches from its star's light alone before any greenhouse warming, is about 543°C (1009°F).
How long is a year on LHS 3844 b?
LHS 3844 b completes one orbit of its star in 11.1 hours.
Illustration generated from LHS 3844 b's confirmed parameters, not a photograph.