What it’s like to stand here
HD 159243 b
weight
≥ 1.91 g
sun
10.2× wider
sky
bright white

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

Gas giant

HD 159243 b

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

HD 159243
host star
13.70 R⊕
radius
359 M⊕
mass · minimum (m·sin i)
13 days
orbital period
669°C (1236°F)
avg temp
What it's like to stand here
≥ 1.91 g
surface gravity (no solid surface · minimum mass only)
13 days
one year, in Earth time
10.2× 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 · 239 ly away
Jet airliner
287 million years
dies en route1000-yr cryo: fails
Parker Solar Probethe fastest craft ever built
372,887 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 159243 b is 14× the width of Earth
Explore from here · roam the neighborhood
Host star
HD 159243
G0 V · 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
BINOCULARS NEEDED
Host-star brightnessmag 8.7
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 159243 b's confirmed parameters, not a photograph.