What it’s like to stand here
HATS-15 b
weight
4.50 g
sun
33.7× wider
sky
warm white

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

Gas giant

HATS-15 b

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

HATS-15
host star
12.39 R⊕
radius
690 M⊕
mass · measured
1.7 days
orbital period
1232°C (2249°F)
avg temp
What it's like to stand here
4.50 g
surface gravity (no solid surface · measured mass)
1.7 days
one year, in Earth time
33.7× wider
how big its sun looks vs ours
warm white
midday sky tint
0.2×
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 · 3,717 ly away
Jet airliner
4.5 billion years
dies en route1000-yr cryo: fails
Parker Solar Probethe fastest craft ever built
5.8 million years
dies en route1000-yr cryo: fails
Light speed
3,717 years
dies en route1000-yr cryo: fails
Warp 10
4 years
arrives, just older
Folding spacetime
instant
arrives thriving
Size vs Earth
EarthHATS-15 b is 12× the width of Earth
Explore from here · roam the neighborhood
Host star
HATS-15
G9 V · 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
FAINT — LARGE TELESCOPE NEEDED
Host-star brightnessmag 14.9
ConstellationCapricornus
To see the host star10"+ (250 mm) telescope, dark sky
Gear bridge

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

Illustration generated from HATS-15 b's confirmed parameters, not a photograph.