What it’s like to stand here
WASP-139 b
weight
0.46 g
sun
12.9× wider
sky
warm white

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

Gas giant

WASP-139 b

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

WASP-139
host star
8.97 R⊕
radius
37.19 M⊕
mass · measured
5.9 days
orbital period
637°C (1178°F)
avg temp
What it's like to stand here
0.46 g
surface gravity (no solid surface · measured mass)
5.9 days
one year, in Earth time
12.9× wider
how big its sun looks vs ours
warm white
midday sky tint
2.2×
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 · 693 ly away
Jet airliner
831 million years
dies en route1000-yr cryo: fails
Parker Solar Probethe fastest craft ever built
1.1 million years
dies en route1000-yr cryo: fails
Light speed
693 years
dies en route1000-yr cryo: survives
Warp 10
253 days
arrives thriving
Folding spacetime
instant
arrives thriving
Size vs Earth
EarthWASP-139 b is 9.0× the width of Earth
Explore from here · roam the neighborhood
Host star
Binary system
WASP-139
K0 · 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
SMALL TELESCOPE NEEDED
Host-star brightnessmag 12.5
ConstellationEridanus
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 WASP-139 b's confirmed parameters, not a photograph.