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Epic exoplanet 51 EP

DE CVn b

RA 201.7207° · Dec 45.5455° · exoplanet

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Score breakdown

· 6 badges
51 pts · Epic
Epic 78 pts → Anomaly
  • Circumbinary (orbits both stars) +14
  • Long-period world +10
  • Disputed — it may not be there at all +10
  • Frozen world +8
  • Confirmed exoplanet +5
  • Gas giant +4
Total score 51

27 more points to reach Anomaly.

Badges

  • Confirmed exoplanet · +5
  • Gas giant · +4
  • Frozen world · +8
  • Long-period world · +10
  • Circumbinary (orbits both stars) · +14
  • Disputed — it may not be there at all · +10

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. Inside our stellar backyard: every radio broadcast humanity has ever made has already swept past it.

Find it in the sky

  • How to spot it. At magnitude 13 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 April — that's when to go looking.

Could we get there?

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

Properties

circumbinary
yes
controversial
yes
density gcc
11
diameter km
158176.88
discovery facility
Multiple Facilities
discovery method
Eclipse Timing Variations
discovery year
2018
dist ly
99.551
eccentricity
0
eq temp k
46.91
host star teff
3579
inclination
86
insolation
0.0008
mag
12.956
mass earth
3823.2733
name
DE CVn b
orbital period days
4098.1
radius earth
12.4
semi major au
5.75
sys num planets
1
sys num stars
2

About DE CVn b

DE CVn b is an epic exoplanet. It lies about 99.6 light-years from Earth, shines at apparent magnitude 12.96, has an equilibrium temperature near 47 K and spans roughly 12.4 Earth radii.

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

How to see it

At apparent magnitude 12.96, it takes a larger telescope or a long-exposure image to capture.

Like any astronomical target, DE CVn 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 DE CVn b is an epic exoplanet

DE CVn b scores 51 points on Spacedle's rarity scale, which places it in the epic tier. Another 27 points would lift it into a rarer tier.

That score comes from 6 science badges — Confirmed exoplanet, Gas giant, Frozen world, Long-period world, Circumbinary (orbits both stars) and Disputed — it may not be there at all — 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.