← Back to dex
Epic exoplanet 62 EP

K2-312 c

RA 140.3391° · Dec 14.3679° · exoplanet

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

Computing the sky for your location…

Score breakdown

· 6 badges
62 pts · Epic
Epic 78 pts → Anomaly
  • In the habitable zone +30
  • Eccentric orbit +9
  • Orbits a Sun-like star +8
  • Multi-planet system +6
  • Confirmed exoplanet +5
  • Gas giant +4
Total score 62

16 more points to reach Anomaly.

Badges

  • Confirmed exoplanet · +5
  • In the habitable zone · +30
  • Gas giant · +4
  • Eccentric orbit · +9
  • Multi-planet system · +6
  • Orbits a Sun-like star · +8

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. Its density says rock, though lighter than Earth's mix: probably less iron, or a thick shell of water and ice over the top.
  • 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.
  • 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 9.5 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 February — that's when to go looking.

Properties

density gcc
4.41
diameter km
163279.36
discovery facility
Roque de los Muchachos Observatory
discovery method
Radial Velocity
discovery year
2023
dist ly
358.315
eccentricity
0.8435
eq temp k
229
habitable zone
yes
host star teff
5959
insolation
0.4596
mag
9.452
mass earth
1681.3123
name
K2-312 c
orbital period days
871.32
radius earth
12.8
semi major au
1.882
spect
G0 V
sys num planets
2
sys num stars
1

About K2-312 c

K2-312 c is an epic exoplanet. It lies about 358.3 light-years from Earth, shines at apparent magnitude 9.45, has spectral type G0 V and has an equilibrium temperature near 229 K.

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 9.45, a small backyard telescope will bring it into view.

Like any astronomical target, K2-312 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 K2-312 c is an epic exoplanet

K2-312 c scores 62 points on Spacedle's rarity scale, which places it in the epic tier. Another 16 points would lift it into a rarer tier.

That score comes from 6 science badges — Confirmed exoplanet, In the habitable zone, Gas giant, Eccentric orbit, Multi-planet system and Orbits a Sun-like star — 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.