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Epic exoplanet 54 EP

Kepler-435 b

RA 292.2873° · Dec 43.1973° · exoplanet

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Score breakdown

· 7 badges
54 pts · Epic
Epic 78 pts → Anomaly
  • Lava world +14
  • Puffy low-density world +12
  • Tidally locked +10
  • Distant (over 1,000 light-years) +6
  • Confirmed exoplanet +5
  • Gas giant +4
  • Found by Kepler +3
Total score 54

24 more points to reach Anomaly.

Badges

  • Confirmed exoplanet · +5
  • Distant (over 1,000 light-years) · +6
  • Gas giant · +4
  • Lava world · +14
  • Tidally locked · +10
  • Puffy low-density world · +12
  • Found by Kepler · +3

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

  • It would float. It is less dense than water. Drop it in a big enough ocean and the whole world would bob on the surface.

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.

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 13.7 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.

Properties

density gcc
0.131
diameter km
284590.822
discovery facility
Kepler
discovery method
Transit
discovery year
2015
dist ly
4627.4035
eccentricity
0.114
eq temp k
1729
host star teff
6161
inclination
85.51
insolation
677.917
mag
13.704
mass earth
266.97
name
Kepler-435 b
orbital period days
8.6002
radius earth
22.31
semi major au
0.0948
sys num planets
1
sys num stars
1
tidally locked
yes
tidally locked inferred
yes

About Kepler-435 b

Kepler-435 b is an epic exoplanet. It lies about 4,627.4 light-years from Earth, shines at apparent magnitude 13.7, has an equilibrium temperature near 1,729 K and spans roughly 22.31 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 13.7, it takes a larger telescope or a long-exposure image to capture.

Like any astronomical target, Kepler-435 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-435 b is an epic exoplanet

Kepler-435 b scores 54 points on Spacedle's rarity scale, which places it in the epic tier. Another 24 points would lift it into a rarer tier.

That score comes from 7 science badges — Confirmed exoplanet, Distant (over 1,000 light-years), Gas giant, Lava world, Tidally locked, Puffy low-density world 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.