What it’s like to stand here
HD 118203 b
weight
4.17 g
sun
28.4× wider
sky
warm white

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

Gas giant

HD 118203 b

Radial Velocity: spotted by the gravitational wobble the planet tugs in its star.

HD 118203
host star
12.78 R⊕
radius
680 M⊕
mass · measured
6.1 days
orbital period
1088°C (1990°F)
avg temp
What it's like to stand here
4.17 g
surface gravity (no solid surface · measured mass)
6.1 days
one year, in Earth time
28.4× wider
how big its sun looks vs ours
warm white
midday sky tint
0.2×
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 · 301 ly away
Jet airliner
361 million years
dies en route1000-yr cryo: fails
Parker Solar Probethe fastest craft ever built
469,299 years
dies en route1000-yr cryo: fails
Light speed
301 years
dies en route1000-yr cryo: survives
Warp 10
110 days
arrives thriving
Folding spacetime
instant
arrives thriving
Size vs Earth
EarthHD 118203 b is 13× the width of Earth
Explore from here · roam the neighborhood
Host star
HD 118203
K0 IV · 2 planets
Explore →
Sibling worlds in this system

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

Can you see it tonight? · observe
BINOCULARS NEEDED
Host-star brightnessmag 8.1
ConstellationUrsa Major
To see the host star50 mm binoculars
Gear bridge

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

Illustration generated from HD 118203 b's confirmed parameters, not a photograph.