Rare exoplanet 43 EP

Kepler-1868 b

RA 293.2984° · Dec 43.5558° · exoplanet

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Score breakdown

· 4 badges

43 pts · Rare

Rare 46 pts → Epic

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

Total score 43

3 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.

Could we get there?

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

Getting there

Aboard Voyager 1. ≈ 15.7 million years at Voyager 1's speed (17 km/s).
Fastest probe ever. ≈ 1.4 million years even at the Parker Solar Probe's 192 km/s.
At 10% light speed. ≈ 8943 years in a starship at a tenth of light speed.
Distance. 894 light-years from Earth.

Look-back time

Look-back time. The light you'd see left around the year 1132.

Saying hello

Say hello. A radio message and its reply would take 1789 years round-trip.

Standing on it

A year here. A full year lasts just 211 Earth days.

By the numbers

Size. About 3.1× the width of Earth.
Volume. About 31.2 Earths could fit inside it.
Mass. About 10.1× the mass of Earth.
Your weight. You'd weigh about 1.0× your Earth weight standing here.
Temperature. A frigid -58°C — colder than dry ice.

How we found it

Discovery. Found by Kepler using the transit method.

Properties

density gcc: 1.78
discovery facility: Kepler
discovery method: Transit
dist ly: 894.2545
eccentricity: 0
eq temp k: 215
habitable zone: yes
insolation: 0.5
mass earth: 10.1
name: Kepler-1868 b
orbital period days: 211.034
radius earth: 3.1495
sys num planets: 1

About Kepler-1868 b

Kepler-1868 b is a rare exoplanet. It lies about 894.3 light-years from Earth, has an equilibrium temperature near 215 K, spans roughly 3.15 Earth radii and weighs about 10.1 Earth masses.

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

How to see it

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 3 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.