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Epic exoplanet 59 EP

HD 125612 c

RA 215.2227° · Dec -17.4818° · exoplanet

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Score breakdown

· 7 badges
59 pts · Epic
Epic 78 pts → Anomaly
  • Lava world +14
  • Two suns in its sky +12
  • Tidally locked +10
  • Orbits a Sun-like star +8
  • Multi-planet system +6
  • Confirmed exoplanet +5
  • Neptune-like +4
Total score 59

19 more points to reach Anomaly.

Badges

  • Confirmed exoplanet · +5
  • Neptune-like · +4
  • Lava world · +14
  • Tidally locked · +10
  • Multi-planet system · +6
  • Orbits a Sun-like star · +8
  • Two suns in its sky · +12

Trivia

What makes it special

  • Lava world. Its surface is almost certainly an ocean of molten rock, kept liquid by the star it hugs.

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 3 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 8.3 it is just past naked-eye reach — ordinary binoculars will pull it in.
  • Southern sky. It rides the southern half of the sky — an easier target the further south you are.
  • Best time of year. It stands highest in the middle of the night around April — that's when to go looking.

Properties

density gcc
1.27
diameter km
51917.734
discovery facility
La Silla Observatory
discovery method
Radial Velocity
discovery year
2009
dist ly
187.9334
eccentricity
0.149
eq temp k
1303.14
host star teff
5900
insolation
441.4278
mag
8.31
mass earth
15.5736
multi star system
yes
name
HD 125612 c
orbital period days
4.1547
radius earth
4.07
semi major au
0.051
spect
G3 V
sys num planets
3
sys num stars
2
tidally locked
yes
tidally locked inferred
yes

About HD 125612 c

HD 125612 c is an epic exoplanet. It lies about 187.9 light-years from Earth, shines at apparent magnitude 8.31, has spectral type G3 V and has an equilibrium temperature near 1,303 K.

Its surface is almost certainly an ocean of molten rock, kept liquid by the star it hugs.

How to see it

At apparent magnitude 8.31, it is an easy target for binoculars.

Like any astronomical target, HD 125612 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 HD 125612 c is an epic exoplanet

HD 125612 c scores 59 points on Spacedle's rarity scale, which places it in the epic tier. Another 19 points would lift it into a rarer tier.

That score comes from 7 science badges — Confirmed exoplanet, Neptune-like, Lava world, Tidally locked, 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.