What it’s like to stand here
HD 224018 d
weight
0.73 g
sun
2.2× wider
sky
warm white

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

Sub-Neptune

HD 224018 d

ESI 0.51344 lyDiscovered in 2025 by K2

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

HD 224018 →
host star
2.40 R⊕
radius
4.20 M⊕
mass · measured
138 days
orbital period
138°C (280°F)
avg temp
What it's like to stand here
0.73 g
your weight (measured mass)
138 days
one year, in Earth time
2.2× wider
how big its sun looks vs ours
warm white
midday sky tint
1.4×
how high you could jump vs Earth
normal
day/night cycle (not tidally locked)
How long to get there · 344 ly away
Jet airliner
413 million years
dies en route1000-yr cryo: fails
Parker Solar Probethe fastest craft ever built
536,551 years
dies en route1000-yr cryo: fails
Light speed
344 years
dies en route1000-yr cryo: survives
Warp 10
126 days
arrives thriving
Folding spacetime
instant
arrives thriving
Size vs Earth
EarthHD 224018 d is 2.4× the width of Earth
Explore from here · roam the neighborhood
HD 224018 dSub-Neptune
PlanetHD 224018 bRocky world
PlanetHD 224018 cSub-Neptune
PlanetKepler-1227 bsimilar world
SystemHD 36038 ly
Sky regionAquariusthis direction
Host star
HD 224018
G V · 3 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 9.7
ConstellationAquarius →
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 HD 224018 d's confirmed parameters, not a photograph.