What it’s like to stand here
K2-99 b
weight
1.96 g
sun
16.6× wider
sky
bright white

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

Gas giant

K2-99 b

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

K2-99
host star
11.88 R⊕
radius
277 M⊕
mass · measured
18 days
orbital period
911°C (1672°F)
avg temp
What it's like to stand here
1.96 g
surface gravity (no solid surface · measured mass)
18 days
one year, in Earth time
16.6× wider
how big its sun looks vs ours
bright white
midday sky tint
0.5×
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 · 1,693 ly away
Jet airliner
2.0 billion years
dies en route1000-yr cryo: fails
Parker Solar Probethe fastest craft ever built
2.6 million years
dies en route1000-yr cryo: fails
Light speed
1,693 years
dies en route1000-yr cryo: fails
Warp 10
2 years
arrives, just older
Folding spacetime
instant
arrives thriving
Size vs Earth
EarthK2-99 b is 12× the width of Earth
Explore from here · roam the neighborhood
Host star
K2-99
G0 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
SMALL TELESCOPE NEEDED
Host-star brightnessmag 11.1
ConstellationVirgo
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 K2-99 b's confirmed parameters, not a photograph.