← Back to dex
Rare exoplanet 43 EP

Kepler-68 e

RA 291.0323° · Dec 49.0402° · exoplanet

Loading sky survey…
🌌 View in 3D star map
Tonight’s visibility

Computing the sky for your location…

Score breakdown

· 6 badges
43 pts · Rare
Rare 50 pts → Epic
  • Two suns in its sky +12
  • Frozen world +8
  • Orbits a Sun-like star +8
  • Multi-planet system +6
  • Confirmed exoplanet +5
  • Gas giant +4
Total score 43

7 more points to reach Epic.

Badges

  • Confirmed exoplanet · +5
  • Gas giant · +4
  • Frozen world · +8
  • Multi-planet system · +6
  • Orbits a Sun-like star · +8
  • Two suns in its sky · +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

  • 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

  • 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 4 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 10.1 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
0.338
diameter km
142869.44
discovery facility
Roque de los Muchachos Observatory
discovery method
Radial Velocity
discovery year
2023
dist ly
470.2061
eccentricity
0.33
eq temp k
147.35
host star teff
5847
insolation
0.0805
mag
10.077
mass earth
86.4493
multi star system
yes
name
Kepler-68 e
orbital period days
3455
radius earth
11.2
semi major au
4.6
sys num planets
4
sys num stars
2

About Kepler-68 e

Kepler-68 e is a rare exoplanet. It lies about 470.2 light-years from Earth, shines at apparent magnitude 10.08, has an equilibrium temperature near 147 K and spans roughly 11.2 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 10.08, a small backyard telescope will bring it into view.

Like any astronomical target, Kepler-68 e 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-68 e is a rare exoplanet

Kepler-68 e scores 43 points on Spacedle's rarity scale, which places it in the rare tier. Another 7 points would lift it into a rarer tier.

That score comes from 6 science badges — Confirmed exoplanet, Gas giant, Frozen world, Multi-planet system, Orbits a Sun-like star and Two suns in its sky — 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.