What it’s like to stand here
GJ 1148 b
weight
≥ 0.68 g
sun
2.2× wider
sky
deep orange

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

Gas giant · likely temperate

GJ 1148 b

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

GJ 1148
host star
11.90 R⊕
radius
96.70 M⊕
mass · minimum (m·sin i)
41 days
orbital period
-40°C (-40°F)
avg temp
What it's like to stand here
≥ 0.68 g
surface gravity (no solid surface · minimum mass only)
41 days
one year, in Earth time
2.2× wider
how big its sun looks vs ours
deep orange
midday sky tint
1.5×
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 · 35.9 ly away
Jet airliner
43.1 million years
dies en route1000-yr cryo: fails
Parker Solar Probethe fastest craft ever built
56,027 years
dies en route1000-yr cryo: fails
Light speed
36 years
arrives elderly
Warp 10
13 days
arrives thriving
Folding spacetime
instant
arrives thriving
Size vs Earth
EarthGJ 1148 b is 12× the width of Earth
Explore from here · roam the neighborhood
Host star
GJ 1148
M5 · 2 planets
Explore →
Sibling worlds in this system

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 11.9
ConstellationUrsa Major
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 1148 b's confirmed parameters, not a photograph.