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Uncommon exoplanet 29 EP

Kepler-113 c

RA 287.9979° · Dec 50.9442° · exoplanet

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Score breakdown

· 5 badges
29 pts · Uncommon
Uncommon 34 pts → Rare
  • Tidally locked +10
  • Multi-planet system +6
  • Confirmed exoplanet +5
  • Sub-Neptune +5
  • Found by Kepler +3
Total score 29

5 more points to reach Rare.

Badges

  • Confirmed exoplanet · +5
  • Sub-Neptune · +5
  • Tidally locked · +10
  • Multi-planet system · +6
  • Found by Kepler · +3

Trivia

Hard to believe

  • It would float. It is less dense than water. Drop it in a big enough ocean and the whole world would bob on the surface.

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. Lighter than Neptune — a puffed-up ball of hydrogen and helium with no surface anywhere on it to stand on.
  • Crowded system. One of at least 2 planets orbiting its star.

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 13.7 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 July — that's when to go looking.

Properties

density gcc
0.3082
diameter km
27808.516
discovery facility
Kepler
discovery method
Transit
discovery year
2014
dist ly
855.6735
eccentricity
0
eq temp k
628
host star teff
4725
inclination
87.69
insolation
45.596
mag
13.655
mass earth
8.7
name
Kepler-113 c
orbital period days
8.9251
radius earth
2.18
semi major au
0.078
sys num planets
2
sys num stars
1
tidally locked
yes
tidally locked inferred
yes

About Kepler-113 c

Kepler-113 c is an uncommon exoplanet. It lies about 855.7 light-years from Earth, shines at apparent magnitude 13.65, has an equilibrium temperature near 628 K and spans roughly 2.18 Earth radii.

It orbits closer to its star than Mercury does to the Sun, completing a lap in less time than Mercury takes.

How to see it

At apparent magnitude 13.65, it takes a larger telescope or a long-exposure image to capture.

Like any astronomical target, Kepler-113 c 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-113 c is an uncommon exoplanet

Kepler-113 c scores 29 points on Spacedle's rarity scale, which places it in the uncommon tier. Another 5 points would lift it into a rarer tier.

That score comes from 5 science badges — Confirmed exoplanet, Sub-Neptune, Tidally locked, Multi-planet system 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.