What it’s like to stand here
GJ 3473 b
weight
1.16 g
sun
22.8× wider
sky
deep orange

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

Rocky world

GJ 3473 b

ESI 0.3689.3 lyDiscovered in 2020 by Transiting Exoplanet Survey Satellite (TESS)

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

GJ 3473 →
host star
1.26 R⊕
radius
1.86 M⊕
mass · measured
1.2 days
orbital period
500°C (932°F)
avg temp
What it's like to stand here
1.16 g
your weight (measured mass)
1.2 days
one year, in Earth time
22.8× wider
how big its sun looks vs ours
deep orange
midday sky tint
0.9×
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 · 89.3 ly away
Jet airliner
107 million years
dies en route1000-yr cryo: fails
Parker Solar Probethe fastest craft ever built
139,196 years
dies en route1000-yr cryo: fails
Light speed
89 years
dies en route1000-yr cryo: survives
Warp 10
33 days
arrives thriving
Folding spacetime
instant
arrives thriving
Size vs Earth
EarthGJ 3473 b is 1.3× the width of Earth
Explore from here · roam the neighborhood
GJ 3473 bRocky world
PlanetGJ 3473 cSub-Neptune
PlanetK2-316 bsimilar world
SystemGJ 347021 ly
Sky regionCanis Minorthis direction
Host star
Binary system
GJ 3473
M4 · 2 planets
Explore →
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
MID-SIZE TELESCOPE NEEDED
Host-star brightnessmag 13.7
ConstellationCanis Minor →
To see the host star8-10" (200-250 mm) telescope
Gear bridge

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

Illustration generated from GJ 3473 b's confirmed parameters, not a photograph.