What it’s like to stand here
HD 164604 b
weight
27.73 g
sun
0.57× as wide
sky
amber-orange

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

Gas giant

HD 164604 b

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

HD 164604
host star
12.30 R⊕
radius
4,195 M⊕
mass · measured
1.8 years
orbital period
-103°C (-153°F)
avg temp
What it's like to stand here
27.73 g
surface gravity (no solid surface · measured mass)
1.8 years
one year, in Earth time
0.57× as wide
how big its sun looks vs ours
amber-orange
midday sky tint
0.0×
how high you could jump vs Earth
normal
day/night cycle (not tidally locked)
How long to get there · 128 ly away
Jet airliner
154 million years
dies en route1000-yr cryo: fails
Parker Solar Probethe fastest craft ever built
200,232 years
dies en route1000-yr cryo: fails
Light speed
128 years
dies en route1000-yr cryo: survives
Warp 10
47 days
arrives thriving
Folding spacetime
instant
arrives thriving
Size vs Earth
EarthHD 164604 b is 12× the width of Earth
Explore from here · roam the neighborhood
Host star
HD 164604
K3.5 V · 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 9.6
ConstellationSagittarius
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 HD 164604 b's confirmed parameters, not a photograph.