What it’s like to stand here
GJ 9827 d
weight
0.77 g
sun
10.9× wider
sky
amber-orange

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

Sub-Neptune

GJ 9827 d

Transit: spotted by the tiny, repeating dip in its star’s light each time the planet crosses in front of it.

GJ 9827
host star
1.98 R⊕
radius
3.02 M⊕
mass · measured
6.2 days
orbital period
402°C (755°F)
avg temp
What it's like to stand here
0.77 g
your weight (measured mass)
6.2 days
one year, in Earth time
10.9× wider
how big its sun looks vs ours
amber-orange
midday sky tint
1.3×
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 · 96.7 ly away
Jet airliner
116 million years
dies en route1000-yr cryo: fails
Parker Solar Probethe fastest craft ever built
150,878 years
dies en route1000-yr cryo: fails
Light speed
97 years
dies en route1000-yr cryo: survives
Warp 10
35 days
arrives thriving
Folding spacetime
instant
arrives thriving
Size vs Earth
EarthGJ 9827 d is 2.0× the width of Earth
Explore from here · roam the neighborhood
Host star
GJ 9827
K7 V · 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
SMALL TELESCOPE NEEDED
Host-star brightnessmag 10.4
ConstellationPisces
To see the host star4-6" (100-150 mm) telescope
Gear bridge

Matched telescope & eyepiece recommendations are coming. Any product links will carry a clear affiliate disclosure.

Illustration generated from GJ 9827 d's confirmed parameters, not a photograph.