What it’s like to stand here
HAT-P-42 b
weight
1.61 g
sun
26.5× wider
sky
warm white

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

Gas giant

HAT-P-42 b

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

HAT-P-42
host star
14.35 R⊕
radius
332 M⊕
mass · measured
4.6 days
orbital period
1155°C (2111°F)
avg temp
What it's like to stand here
1.61 g
surface gravity (no solid surface · measured mass)
4.6 days
one year, in Earth time
26.5× wider
how big its sun looks vs ours
warm white
midday sky tint
0.6×
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 · 1,322 ly away
Jet airliner
1.6 billion years
dies en route1000-yr cryo: fails
Parker Solar Probethe fastest craft ever built
2.1 million years
dies en route1000-yr cryo: fails
Light speed
1,322 years
dies en route1000-yr cryo: fails
Warp 10
1 years
arrives, just older
Folding spacetime
instant
arrives thriving
Size vs Earth
EarthHAT-P-42 b is 14× the width of Earth
Explore from here · roam the neighborhood
Host star
HAT-P-42
5743 K host star · 1 planet
Explore →
Sibling worlds in this system

No other confirmed planets here yet. New ones auto-appear as telescopes report.

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 12.1
ConstellationHydra
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 HAT-P-42 b's confirmed parameters, not a photograph.