What it’s like to stand here
HD 154391 b
- weight
- 18.51 g
- sun
- about the same
- sky
- amber-orange
Illustration computed from this world’s measured and derived values, not a photograph.
Gas giant · likely temperate
HD 154391 b
Radial Velocity: spotted by the gravitational wobble the planet tugs in its star.
HD 154391 →
host star
12.50 R⊕
radius
2,892 M⊕
mass · measured
14.1 years
orbital period
-20°C (-3°F)
avg temp
What it's like to stand here
18.51 g
surface gravity (no solid surface · measured mass)
14.1 years
one year, in Earth time
about the same
how big its sun looks vs ours
amber-orange
midday sky tint
0.1×
how high you could jump vs Earth
normal
day/night cycle (not tidally locked)
How long to get there · 329 ly away
Jet airliner
395 million years
dies en route1000-yr cryo: fails
Parker Solar Probethe fastest craft ever built
513,493 years
dies en route1000-yr cryo: fails
Light speed
329 years
dies en route1000-yr cryo: survives
Warp 10
120 days
arrives thriving
Folding spacetime
instant
arrives thriving
Size vs Earth
Explore from here · roam the neighborhood
Host star
HD 154391
K1 III · 1 planet
Sibling worlds in this system
No other confirmed planets here yet. New ones auto-appear as telescopes report.
Nearby star systems
Similar worlds (size · gravity · star)
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
Gear bridge
Matched telescope & eyepiece recommendations are coming. Any product links will carry a clear affiliate disclosure.
Illustration generated from HD 154391 b's confirmed parameters, not a photograph.