What it’s like to stand here
HD 153557 d
weight
61.62 g
sun
0.03× as wide
sky
amber-orange

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

Gas giant

HD 153557 d

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

HD 153557
host star
11.90 R⊕
radius
8,726 M⊕
mass · measured
111 years
orbital period
-230°C (-381°F)
avg temp
What it's like to stand here
61.62 g
surface gravity (no solid surface · measured mass)
111 years
one year, in Earth time
0.03× as wide
how big its sun looks vs ours
amber-orange
midday sky tint
0.0×
how high you could jump vs Earth
normal
day/night cycle (not tidally locked)
How long to get there · 58.5 ly away
Jet airliner
70.2 million years
dies en route1000-yr cryo: fails
Parker Solar Probethe fastest craft ever built
91,263 years
dies en route1000-yr cryo: fails
Light speed
59 years
dies en route1000-yr cryo: survives
Warp 10
21 days
arrives thriving
Folding spacetime
instant
arrives thriving
Size vs Earth
EarthHD 153557 d is 12× the width of Earth
Explore from here · roam the neighborhood
Host star
HD 153557
K0 · 3 planets
Explore →

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 7.8
ConstellationHercules
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 153557 d's confirmed parameters, not a photograph.