What it’s like to stand here
WASP-99 b
weight
5.91 g
sun
22.8× wider
sky
bright white

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

Gas giant

WASP-99 b

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

WASP-99
host star
11.43 R⊕
radius
772 M⊕
mass · measured
5.8 days
orbital period
1207°C (2204°F)
avg temp
What it's like to stand here
5.91 g
surface gravity (no solid surface · measured mass)
5.8 days
one year, in Earth time
22.8× wider
how big its sun looks vs ours
bright white
midday sky tint
0.2×
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 · 517 ly away
Jet airliner
621 million years
dies en route1000-yr cryo: fails
Parker Solar Probethe fastest craft ever built
807,065 years
dies en route1000-yr cryo: fails
Light speed
517 years
dies en route1000-yr cryo: survives
Warp 10
189 days
arrives thriving
Folding spacetime
instant
arrives thriving
Size vs Earth
EarthWASP-99 b is 11× the width of Earth
Explore from here · roam the neighborhood
Host star
WASP-99
F8 · 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
BINOCULARS NEEDED
Host-star brightnessmag 9.5
ConstellationEridanus
To see the host star50 mm binoculars
Gear bridge

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

Illustration generated from WASP-99 b's confirmed parameters, not a photograph.