What it’s like to stand here
HD 28109 b
- weight
- 0.86 g
- sun
- 10.5× wider
- sky
- bright white
Illustration computed from this world’s measured and derived values, not a photograph.
Sub-Neptune
HD 28109 b
Transit: spotted by the tiny, repeating dip in its star’s light each time the planet crosses in front of it.
What it's like to stand here
0.86 g
your weight (measured mass)
23 days
one year, in Earth time
10.5× wider
how big its sun looks vs ours
bright white
midday sky tint
1.2×
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 · 455 ly away
Jet airliner
546 million years
dies en route1000-yr cryo: fails
Parker Solar Probethe fastest craft ever built
710,167 years
dies en route1000-yr cryo: fails
Light speed
455 years
dies en route1000-yr cryo: survives
Warp 10
166 days
arrives thriving
Folding spacetime
instant
arrives thriving
Size vs Earth
Explore from here · roam the neighborhood
Host star
HD 28109
F8 · 3 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 28109 b's confirmed parameters, not a photograph.