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Rare exoplanet 45 EP

2MASS J22362452+4751425 b

RA 339.1026° · Dec 47.8617° · 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.

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

  • How to spot it. At magnitude 12.4 it is far too faint for the eye: this one belongs to cameras and long exposures.
  • 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 August — that's when to go looking.

Could we get there?

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

Properties

density gcc
11.7
diameter km
156901.26
discovery facility
W. M. Keck Observatory
discovery method
Imaging
discovery year
2016
dist ly
226.9188
eq temp k
10.3
host star teff
4045
insolation
0
mag
12.368
mass earth
3972.875
name
2MASS J22362452+4751425 b
radius earth
12.3
semi major au
230
spect
K7 V
sys num planets
1
sys num stars
1

About 2MASS J22362452+4751425 b

2MASS J22362452+4751425 b is a rare exoplanet. It lies about 226.9 light-years from Earth, shines at apparent magnitude 12.37, has spectral type K7 V and has an equilibrium temperature near 10 K.

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

How to see it

At apparent magnitude 12.37, it takes a larger telescope or a long-exposure image to capture.

Like any astronomical target, 2MASS J22362452+4751425 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 2MASS J22362452+4751425 b is a rare exoplanet

2MASS J22362452+4751425 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.