← Back to dex
Rare exoplanet 43 EP

Kepler-1868 b

RA 293.2984° · Dec 43.5558° · exoplanet

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

Computing the sky for your location…

Score breakdown

· 4 badges
43 pts · Rare
Rare 50 pts → Epic
  • In the habitable zone +30
  • Confirmed exoplanet +5
  • Sub-Neptune +5
  • Found by Kepler +3
Total score 43

7 more points to reach Epic.

Badges

  • Confirmed exoplanet · +5
  • In the habitable zone · +30
  • Sub-Neptune · +5
  • Found by Kepler · +3

Trivia

What makes it special

  • Goldilocks zone. Sits where it's neither too hot nor too cold — liquid water could exist on a surface here.

What it actually is

  • What it is made of. Too light to be solid rock and too heavy to be all gas: most likely a deep global ocean or a thick steamy envelope over a rocky core.
  • What the zone means. The habitable zone is only about temperature: it is the band where liquid water could survive on a surface. It is a promising address, not evidence of anything living.

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 14.2 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.

Could we get there?

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

Properties

density gcc
1.78
diameter km
40175.6658
discovery facility
Kepler
discovery method
Transit
discovery year
2021
dist ly
894.2545
eccentricity
0
eq temp k
215
habitable zone
yes
host star teff
4658
inclination
89.69
insolation
0.5
mag
14.157
mass earth
10.1
name
Kepler-1868 b
orbital period days
211.034
radius earth
3.1495
semi major au
0.6235
sys num planets
1
sys num stars
1

About Kepler-1868 b

Kepler-1868 b is a rare exoplanet. It lies about 894.3 light-years from Earth, shines at apparent magnitude 14.16, has an equilibrium temperature near 215 K and spans roughly 3.15 Earth radii.

Sits where it's neither too hot nor too cold — liquid water could exist on a surface here.

How to see it

At apparent magnitude 14.16, it takes a larger telescope or a long-exposure image to capture.

Like any astronomical target, Kepler-1868 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-1868 b is a rare exoplanet

Kepler-1868 b 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 4 science badges — Confirmed exoplanet, In the habitable zone, Sub-Neptune 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.