What it’s like to stand here
BD+20 2457 c
weight
≥ 25.78 g
sun
24.3× wider
sky
amber-orange

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

Gas giant

BD+20 2457 c

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

BD+20 2457
host star
12.40 R⊕
radius
3,963 M⊕
mass · minimum (m·sin i)
1.7 years
orbital period
712°C (1313°F)
avg temp
What it's like to stand here
≥ 25.78 g
surface gravity (no solid surface · minimum mass only)
1.7 years
one year, in Earth time
24.3× wider
how big its sun looks vs ours
amber-orange
midday sky tint
0.0×
how high you could jump vs Earth
normal
day/night cycle (not tidally locked)
How long to get there · 5,022 ly away
Jet airliner
6.0 billion years
dies en route1000-yr cryo: fails
Parker Solar Probethe fastest craft ever built
7.8 million years
dies en route1000-yr cryo: fails
Light speed
5,022 years
dies en route1000-yr cryo: fails
Warp 10
5 years
arrives, just older
Folding spacetime
instant
arrives thriving
Size vs Earth
EarthBD+20 2457 c is 12× the width of Earth
Explore from here · roam the neighborhood
Host star
BD+20 2457
K2 II · 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 9.7
ConstellationLeo
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 BD+20 2457 c's confirmed parameters, not a photograph.