What it’s like to stand here
Kepler-397 c
- weight
- ≈ 0.83 g
- sun
- 1.6× wider
- sky
- warm white
Illustration computed from this world’s measured and derived values, not a photograph.
Ice / gas giant
Kepler-397 c
Transit: spotted by the tiny, repeating dip in its star’s light each time the planet crosses in front of it.
Kepler-397 →
host star
6.18 R⊕
radius
31.60 M⊕
mass · estimated from radius
135 days
orbital period
22°C (71°F)
avg temp
What it's like to stand here
≈ 0.83 g
surface gravity (no solid surface · mass estimated from size)
135 days
one year, in Earth time
1.6× wider
how big its sun looks vs ours
warm white
midday sky tint
1.2×
how high you could jump vs Earth
normal
day/night cycle (not tidally locked)
How long to get there · 3,160 ly away
Jet airliner
3.8 billion years
dies en route1000-yr cryo: fails
Parker Solar Probethe fastest craft ever built
4.9 million years
dies en route1000-yr cryo: fails
Light speed
3,160 years
dies en route1000-yr cryo: fails
Warp 10
3 years
arrives, just older
Folding spacetime
instant
arrives thriving
Size vs Earth
Explore from here · roam the neighborhood
Host star
Kepler-397
5307 K host star · 2 planets
Sibling worlds in this system
Nearby star systems
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 16.4
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-397 c's confirmed parameters, not a photograph.