What it’s like to stand here
LHS 1903 e
weight
1.93 g
sun
3.6× wider
sky
deep orange

Illustration computed from this world’s measured and derived values, not a photograph.

Sub-Neptune

LHS 1903 e

ESI 0.73116 lyDiscovered in 2026 by CHaracterising ExOPlanets Satellite (CHEOPS)

Transit: spotted by the tiny, repeating dip in its star’s light each time the planet crosses in front of it.

LHS 1903 →
host star
1.73 R⊕
radius
5.79 M⊕
mass · measured
29 days
orbital period
60°C (140°F)
avg temp
What it's like to stand here
1.93 g
your weight (measured mass)
29 days
one year, in Earth time
3.6× wider
how big its sun looks vs ours
deep orange
midday sky tint
0.5×
how high you could jump vs Earth
likely
likely tidally locked: probably eternal day on one side, night on the other
How long to get there · 116 ly away
Jet airliner
140 million years
dies en route1000-yr cryo: fails
Parker Solar Probethe fastest craft ever built
181,555 years
dies en route1000-yr cryo: fails
Light speed
116 years
dies en route1000-yr cryo: survives
Warp 10
42 days
arrives thriving
Folding spacetime
instant
arrives thriving
Size vs Earth
EarthLHS 1903 e is 1.7× the width of Earth
Explore from here · roam the neighborhood
LHS 1903 eSub-Neptune
PlanetLHS 1903 bRocky world
PlanetLHS 1903 cSub-Neptune
PlanetK2-133 esimilar world
SystemTOI-573424 ly
Sky regionLynxthis direction
Host star
LHS 1903
M · 4 planets
Explore →
Sibling worlds in this system
Nearby star systems
Similar worlds (size · gravity · star)

Zoom out: star → system → (soon) galaxy arm, host black hole, and a real image of the host galaxy.

Can you see it tonight? · observe
SMALL TELESCOPE NEEDED
Host-star brightnessmag 12.2
ConstellationLynx →
To see the host star4-6" (100-150 mm) telescope
Gear bridge

Matched telescope & eyepiece recommendations are coming. Any product links will carry a clear affiliate disclosure.

Illustration generated from LHS 1903 e's confirmed parameters, not a photograph.