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Epic exoplanet 52 EP

Kepler-1876 b

RA 299.1605° · Dec 41.1438° · exoplanet

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Score breakdown

· 5 badges
52 pts · Epic
Epic 78 pts → Anomaly
  • Denser than iron +18
  • Earth-sized +16
  • Tidally locked +10
  • Confirmed exoplanet +5
  • Found by Kepler +3
Total score 52

26 more points to reach Anomaly.

Badges

  • Confirmed exoplanet · +5
  • Earth-sized · +16
  • Tidally locked · +10
  • Denser than iron · +18
  • Found by Kepler · +3

Trivia

What makes it special

  • Earth-sized. Genuinely comparable to Earth in size. Worlds in this narrow band are the ones every next-generation telescope is being pointed at.

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

  • Hugging its star. It orbits closer to its star than Mercury does to the Sun, completing a lap in less time than Mercury takes.
  • 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 10.8 you'll want a small backyard telescope.
  • 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 July — that's when to go looking.

Properties

density gcc
19
diameter km
10881.0386
discovery facility
Kepler
discovery method
Transit
discovery year
2021
dist ly
847.7936
eccentricity
0.098
eq temp k
1299
host star teff
6104
inclination
89.13
insolation
475
mag
10.793
mass earth
2.4
name
Kepler-1876 b
orbital period days
6.992
radius earth
0.853
semi major au
0.0758
sys num planets
1
sys num stars
1
tidally locked
yes
tidally locked inferred
yes

About Kepler-1876 b

Kepler-1876 b is an epic exoplanet. It lies about 847.8 light-years from Earth, shines at apparent magnitude 10.79, has an equilibrium temperature near 1,299 K and spans roughly 0.85 Earth radii.

Genuinely comparable to Earth in size. Worlds in this narrow band are the ones every next-generation telescope is being pointed at.

How to see it

At apparent magnitude 10.79, a small backyard telescope will bring it into view.

Like any astronomical target, Kepler-1876 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 Kepler-1876 b is an epic exoplanet

Kepler-1876 b scores 52 points on Spacedle's rarity scale, which places it in the epic tier. Another 26 points would lift it into a rarer tier.

That score comes from 5 science badges — Confirmed exoplanet, Earth-sized, Tidally locked, Denser than iron and Found by Kepler — 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.