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Rare exoplanet 45 EP

KOINTREAU-3 b

RA 246.7688° · Dec -24.7167° · exoplanet

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Score breakdown

· 5 badges
45 pts · Rare
Rare 50 pts → Epic
  • Directly imaged +16
  • Orbits beyond Neptune's distance +12
  • Frozen world +8
  • Confirmed exoplanet +5
  • Gas giant +4
Total score 45

5 more points to reach Epic.

Badges

  • Confirmed exoplanet · +5
  • Gas giant · +4
  • Frozen world · +8
  • Directly imaged · +16
  • Orbits beyond Neptune's distance · +12

Trivia

What makes it special

  • Frozen world. A deep-frozen world, too far from its star's warmth for anything to stay liquid.

What it actually is

  • What it is made of. Too light to be solid rock and too heavy to be all gas: most likely a deep global ocean or a thick steamy envelope over a rocky core.

Sense of scale

  • In perspective. Far away by human standards, yet still a local address inside the Milky Way's spiral arms.

Find it in the sky

  • Southern sky. It rides the southern half of the sky — an easier target the further south you are.
  • Best time of year. It stands highest in the middle of the night around May — that's when to go looking.

Could we get there?

  • Verdict. Hopelessly far for any craft humanity can build today.

Getting there

  • Aboard Voyager 1. ≈ 8.1 million years at Voyager 1's speed (17 km/s).
  • Fastest probe ever. ≈ 715.8 thousand years even at the Parker Solar Probe's 192 km/s.

Properties

density gcc
2.64
diameter km
167106.22
discovery facility
W. M. Keck Observatory
discovery method
Imaging
discovery year
2026
dist ly
458.4547
eq temp k
8.74
host star teff
3920
insolation
0
mass earth
1080.6166
name
KOINTREAU-3 b
radius earth
13.1
semi major au
342
spect
K6-M1
sys num planets
1
sys num stars
1

Nearby objects

About KOINTREAU-3 b

KOINTREAU-3 b is a rare exoplanet. It lies about 458.5 light-years from Earth, has spectral type K6-M1, has an equilibrium temperature near 9 K and spans roughly 13.1 Earth radii.

A deep-frozen world, too far from its star's warmth for anything to stay liquid.

How to see it

Like any astronomical target, KOINTREAU-3 b is best seen from a dark site away from city lights, and when it is above the horizon depends on your latitude and the time of year. The visibility panel above works out tonight's viewing window for your saved location.

Why KOINTREAU-3 b is a rare exoplanet

KOINTREAU-3 b scores 45 points on Spacedle's rarity scale, which places it in the rare tier. Another 5 points would lift it into a rarer tier.

That score comes from 5 science badges — Confirmed exoplanet, Gas giant, Frozen world, Directly imaged and Orbits beyond Neptune's distance — each earned for a real, measurable property of the object. Rarity on Spacedle is never random: the more remarkable an object's astrophysics, the more badges it collects, the higher it scores, and the rarer it ranks.