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Epic exoplanet 62 EP

Kepler-10 b

RA 285.6793° · Dec 50.2415° · exoplanet

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Score breakdown

· 8 badges
62 pts · Epic
Epic 78 pts → Anomaly
  • Lava world +14
  • Ultra-short period +14
  • Super-Earth +8
  • Orbits a Sun-like star +8
  • Multi-planet system +6
  • Confirmed exoplanet +5
  • Blasted by starlight +4
  • Found by Kepler +3
Total score 62

16 more points to reach Anomaly.

Badges

  • Confirmed exoplanet · +5
  • Super-Earth · +8
  • Lava world · +14
  • Ultra-short period · +14
  • Multi-planet system · +6
  • Blasted by starlight · +4
  • Found by Kepler · +3
  • Orbits a Sun-like star · +8

Trivia

What makes it special

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

Hard to believe

  • A year in a day. Its entire year is over in 20.1 hours. Birthdays here would come round faster than meals.

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. Denser than Earth — a solid world of rock and iron, with no meaningful atmosphere to speak of by mass.
  • 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 11 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.

Properties

density gcc
5.54
diameter km
18751.614
discovery facility
Kepler
discovery method
Transit
discovery year
2011
dist ly
605.0389
eccentricity
0
eq temp k
2188
host star teff
5708
inclination
84.8
insolation
3741.78
mag
11.043
mass earth
3.24
name
Kepler-10 b
orbital period days
0.8375
radius earth
1.47
semi major au
0.0169
sys num planets
3
sys num stars
1
tidally locked
yes
tidally locked inferred
yes

About Kepler-10 b

Kepler-10 b is an epic exoplanet. It lies about 605 light-years from Earth, shines at apparent magnitude 11.04, has an equilibrium temperature near 2,188 K and spans roughly 1.47 Earth radii.

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

How to see it

At apparent magnitude 11.04, a small backyard telescope will bring it into view.

Like any astronomical target, Kepler-10 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-10 b is an epic exoplanet

Kepler-10 b 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 8 science badges — Confirmed exoplanet, Super-Earth, Lava world, Ultra-short period, Multi-planet system, Blasted by starlight, Found by Kepler 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.