What it’s like to stand here
Kepler-539 b
weight
4.40 g
sun
1.9× wider
sky
warm white

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

Gas giant

Kepler-539 b

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

Kepler-539
host star
8.37 R⊕
radius
308 M⊕
mass · measured
126 days
orbital period
114°C (238°F)
avg temp
What it's like to stand here
4.40 g
surface gravity (no solid surface · measured mass)
126 days
one year, in Earth time
1.9× wider
how big its sun looks vs ours
warm white
midday sky tint
0.2×
how high you could jump vs Earth
normal
day/night cycle (not tidally locked)
How long to get there · 1,002 ly away
Jet airliner
1.2 billion years
dies en route1000-yr cryo: fails
Parker Solar Probethe fastest craft ever built
1.6 million years
dies en route1000-yr cryo: fails
Light speed
1,002 years
dies en route1000-yr cryo: fails
Warp 10
1 years
arrives, just older
Folding spacetime
instant
arrives thriving
Size vs Earth
EarthKepler-539 b is 8.4× the width of Earth
Explore from here · roam the neighborhood
Host star
Kepler-539
G2 V · 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
SMALL TELESCOPE NEEDED
Host-star brightnessmag 12.4
ConstellationCygnus
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 Kepler-539 b's confirmed parameters, not a photograph.