What it’s like to stand here
51 Eri b
sun
0.14× as wide
sky
bright white

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

Sub-Neptune

51 Eri b

Imaging: photographed directly, as a faint point of light beside its star.

51 Eri
host star
radius
3,464 M⊕
mass · measured
24.9 years
orbital period
534°C (993°F)
avg temp
What it's like to stand here
gravity, needs mass + radius
24.9 years
one year, in Earth time
0.14× as wide
how big its sun looks vs ours
bright white
midday sky tint
jump, needs gravity
normal
day/night cycle (not tidally locked)
How long to get there · 97.1 ly away
Jet airliner
116 million years
dies en route1000-yr cryo: fails
Parker Solar Probethe fastest craft ever built
151,369 years
dies en route1000-yr cryo: fails
Light speed
97 years
dies en route1000-yr cryo: survives
Warp 10
35 days
arrives thriving
Folding spacetime
instant
arrives thriving
Size vs Earth
Explore from here · roam the neighborhood
Host star
Triple system
51 Eri
F0 IV · 1 planet
Explore →
Sibling worlds in this system

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.

Can you see it tonight? · observe
VISIBLE TO THE NAKED EYE
Host-star brightnessmag 5.2
ConstellationEridanus
To see the host starno equipment needed
Gear bridge

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

Illustration generated from 51 Eri b's confirmed parameters, not a photograph.