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Rare exoplanet 37 EP

KOINTREAU-1 b

RA 68.3593° · Dec 22.7581° · exoplanet

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Score breakdown

· 4 badges
37 pts · Rare
Rare 50 pts → Epic
  • Directly imaged +16
  • Orbits beyond Neptune's distance +12
  • Confirmed exoplanet +5
  • Gas giant +4
Total score 37

13 more points to reach Epic.

Badges

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

Trivia

Hard to believe

  • Denser than iron. It is packed tighter than solid iron — whatever it is made of, it is not ordinary rock.

What it actually is

  • What it is made of. Denser than Earth — a solid world of rock and iron, with no meaningful atmosphere to speak of by mass.

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

  • Northern sky. It rides the northern half of the sky — an easier target the further north you are.
  • Best time of year. It stands highest in the middle of the night around November — 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. ≈ 9.1 million years at Voyager 1's speed (17 km/s).
  • Fastest probe ever. ≈ 807.8 thousand years even at the Parker Solar Probe's 192 km/s.

Properties

density gcc
9.71
diameter km
158176.88
discovery facility
W. M. Keck Observatory
discovery method
Imaging
discovery year
2026
dist ly
517.3421
host star teff
3551
mass earth
3368.9811
name
KOINTREAU-1 b
radius earth
12.4
semi major au
690
spect
M4
sys num planets
1
sys num stars
1

About KOINTREAU-1 b

KOINTREAU-1 b is a rare exoplanet. It lies about 517.3 light-years from Earth, has spectral type M4, spans roughly 12.4 Earth radii and weighs about 3,368.98 Earth masses.

Denser than Earth — a solid world of rock and iron, with no meaningful atmosphere to speak of by mass.

How to see it

Like any astronomical target, KOINTREAU-1 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-1 b is a rare exoplanet

KOINTREAU-1 b scores 37 points on Spacedle's rarity scale, which places it in the rare tier. Another 13 points would lift it into a rarer tier.

That score comes from 4 science badges — Confirmed exoplanet, Gas giant, 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.