What it’s like to stand here
HD 154857 b
- weight
- ≥ 4.40 g
- sun
- 1.8× wider
- sky
- warm white
Illustration computed from this world’s measured and derived values, not a photograph.
Gas giant
HD 154857 b
Radial Velocity: spotted by the gravitational wobble the planet tugs in its star.
HD 154857 →
host star
13.30 R⊕
radius
779 M⊕
mass · minimum (m·sin i)
409 days
orbital period
87°C (188°F)
avg temp
What it's like to stand here
≥ 4.40 g
surface gravity (no solid surface · minimum mass only)
409 days
one year, in Earth time
1.8× wider
how big its sun looks vs ours
warm white
midday sky tint
0.2×
how high you could jump vs Earth
normal
day/night cycle (not tidally locked)
How long to get there · 207 ly away
Jet airliner
248 million years
dies en route1000-yr cryo: fails
Parker Solar Probethe fastest craft ever built
322,746 years
dies en route1000-yr cryo: fails
Light speed
207 years
dies en route1000-yr cryo: survives
Warp 10
76 days
arrives thriving
Folding spacetime
instant
arrives thriving
Size vs Earth
Explore from here · roam the neighborhood
Host star
HD 154857
G5 V · 2 planets
Sibling worlds in this system
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 154857 b's confirmed parameters, not a photograph.