What it’s like to stand here
HAT-P-2 b
weight
25.23 g
sun
20.3× wider
sky
bright white

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

Gas giant

HAT-P-2 b

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

HAT-P-2
host star
10.66 R⊕
radius
2,867 M⊕
mass · measured
5.6 days
orbital period
1267°C (2312°F)
avg temp
What it's like to stand here
25.23 g
surface gravity (no solid surface · measured mass)
5.6 days
one year, in Earth time
20.3× wider
how big its sun looks vs ours
bright white
midday sky tint
0.0×
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 · 417 ly away
Jet airliner
500 million years
dies en route1000-yr cryo: fails
Parker Solar Probethe fastest craft ever built
649,955 years
dies en route1000-yr cryo: fails
Light speed
417 years
dies en route1000-yr cryo: survives
Warp 10
152 days
arrives thriving
Folding spacetime
instant
arrives thriving
Size vs Earth
EarthHAT-P-2 b is 11× the width of Earth
Explore from here · roam the neighborhood
Host star
HAT-P-2
F8 · 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
BINOCULARS NEEDED
Host-star brightnessmag 8.7
ConstellationHercules
To see the host star50 mm binoculars
Gear bridge

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

Illustration generated from HAT-P-2 b's confirmed parameters, not a photograph.