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Epic exoplanet 51 EP

CD-35 2722 b

RA 92.3300° · Dec -35.8255° · exoplanet

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Score breakdown

· 5 badges
51 pts · Epic
Epic 78 pts → Anomaly
  • Directly imaged +16
  • Lava world +14
  • Orbits beyond Neptune's distance +12
  • Confirmed exoplanet +5
  • Gas giant +4
Total score 51

27 more points to reach Anomaly.

Badges

  • Confirmed exoplanet · +5
  • Gas giant · +4
  • Lava world · +14
  • Directly imaged · +16
  • Orbits beyond Neptune's distance · +12

Trivia

What makes it special

  • Lava world. Its surface is almost certainly an ocean of molten rock, kept liquid by the star it hugs.

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 11 you'll want a small backyard telescope.
  • 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 December — that's when to go looking.

Could we get there?

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

Properties

density gcc
9.82
diameter km
221625.1995
discovery facility
Gemini Observatory
discovery method
Imaging
discovery year
2011
dist ly
73.025
eq temp k
1800
host star teff
3689
insolation
0
mag
11.041
mass earth
9375.938
name
CD-35 2722 b
radius earth
17.3739
semi major au
67
spect
M1 V
sys num planets
1
sys num stars
1

About CD-35 2722 b

CD-35 2722 b is an epic exoplanet. It lies about 73 light-years from Earth, shines at apparent magnitude 11.04, has spectral type M1 V and has an equilibrium temperature near 1,800 K.

Its surface is almost certainly an ocean of molten rock, kept liquid by the star it hugs.

How to see it

At apparent magnitude 11.04, a small backyard telescope will bring it into view.

Like any astronomical target, CD-35 2722 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 CD-35 2722 b is an epic exoplanet

CD-35 2722 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 5 science badges — Confirmed exoplanet, Gas giant, Lava 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.