What it’s like to stand here
Kepler-1903 b
weight
≈ 1.12 g
sun
7.5× wider
sky
bright white

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

Sub-Neptune

Kepler-1903 b

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

Kepler-1903
host star
2.29 R⊕
radius
5.85 M⊕
mass · estimated from radius
17 days
orbital period
496°C (925°F)
avg temp
What it's like to stand here
≈ 1.12 g
your weight (mass estimated from size)
17 days
one year, in Earth time
7.5× wider
how big its sun looks vs ours
bright white
midday sky tint
0.9×
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 · 5,791 ly away
Jet airliner
6.9 billion years
dies en route1000-yr cryo: fails
Parker Solar Probethe fastest craft ever built
9.0 million years
dies en route1000-yr cryo: fails
Light speed
5,791 years
dies en route1000-yr cryo: fails
Warp 10
6 years
arrives, just older
Folding spacetime
instant
arrives thriving
Size vs Earth
EarthKepler-1903 b is 2.3× the width of Earth
Explore from here · roam the neighborhood
Host star
Kepler-1903
6347 K host star · 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
FAINT — LARGE TELESCOPE NEEDED
Host-star brightnessmag 15.5
ConstellationCygnus
To see the host star10"+ (250 mm) telescope, dark sky
Gear bridge

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

Illustration generated from Kepler-1903 b's confirmed parameters, not a photograph.