What it’s like to stand here
HD 149143 b
weight
≥ 2.29 g
sun
27.0× wider
sky
warm white

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

Gas giant

HD 149143 b

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

HD 149143
host star
13.60 R⊕
radius
423 M⊕
mass · minimum (m·sin i)
4.1 days
orbital period
1199°C (2190°F)
avg temp
What it's like to stand here
≥ 2.29 g
surface gravity (no solid surface · minimum mass only)
4.1 days
one year, in Earth time
27.0× wider
how big its sun looks vs ours
warm white
midday sky tint
0.4×
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 · 239 ly away
Jet airliner
287 million years
dies en route1000-yr cryo: fails
Parker Solar Probethe fastest craft ever built
372,758 years
dies en route1000-yr cryo: fails
Light speed
239 years
dies en route1000-yr cryo: survives
Warp 10
87 days
arrives thriving
Folding spacetime
instant
arrives thriving
Size vs Earth
EarthHD 149143 b is 14× the width of Earth
Explore from here · roam the neighborhood
Host star
HD 149143
G0 · 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 7.9
ConstellationOphiuchus
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 HD 149143 b's confirmed parameters, not a photograph.