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Epic exoplanet 53 EP

USco CTIO 108 b

RA 241.4753° · Dec -18.3124° · exoplanet

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Score breakdown

· 6 badges
53 pts · Epic
Epic 78 pts → Anomaly
  • Directly imaged +16
  • Orbits beyond Neptune's distance +12
  • Frozen world +8
  • Orbits a red dwarf +8
  • Confirmed exoplanet +5
  • Gas giant +4
Total score 53

25 more points to reach Anomaly.

Badges

  • Confirmed exoplanet · +5
  • Gas giant · +4
  • Frozen world · +8
  • Directly imaged · +16
  • Orbits a red dwarf · +8
  • 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

  • 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. ≈ 8.3 million years at Voyager 1's speed (17 km/s).

Properties

density gcc
13.1
diameter km
156901.26
discovery facility
Teide Observatory
discovery method
Imaging
discovery year
2008
dist ly
469.7266
eq temp k
2.96
host star teff
2700
insolation
0
mass earth
4449.62
name
USco CTIO 108 b
radius earth
12.3
semi major au
670
spect
M7
sys num planets
1
sys num stars
1

Nearby objects

About USco CTIO 108 b

USco CTIO 108 b is an epic exoplanet. It lies about 469.7 light-years from Earth, has spectral type M7, has an equilibrium temperature near 3 K and spans roughly 12.3 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, USco CTIO 108 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 USco CTIO 108 b is an epic exoplanet

USco CTIO 108 b scores 53 points on Spacedle's rarity scale, which places it in the epic tier. Another 25 points would lift it into a rarer tier.

That score comes from 6 science badges — Confirmed exoplanet, Gas giant, Frozen world, Directly imaged, Orbits a red dwarf 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.