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Epic exoplanet 76 EP

Kepler-407 b

RA 286.0363° · Dec 49.6145° · exoplanet

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Score breakdown

· 9 badges
76 pts · Epic
Epic 78 pts → Anomaly
  • Earth-sized +16
  • Lava world +14
  • Ultra-short period +14
  • Orbits a Sun-like star +8
  • Distant (over 1,000 light-years) +6
  • Multi-planet system +6
  • Confirmed exoplanet +5
  • Blasted by starlight +4
  • Found by Kepler +3
Total score 76

2 more points to reach Anomaly.

Badges

  • Confirmed exoplanet · +5
  • Distant (over 1,000 light-years) · +6
  • Earth-sized · +16
  • 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

  • Earth-sized. Genuinely comparable to Earth in size. Worlds in this narrow band are the ones every next-generation telescope is being pointed at.
  • 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 16.1 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 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 12.6 it is far too faint for the eye: this one belongs to cameras and long exposures.

Properties

density gcc
5.8766
diameter km
15179.878
discovery facility
Kepler
discovery method
Transit
discovery year
2014
dist ly
1103.6075
eccentricity
0
eq temp k
1983
host star teff
5487
inclination
87.19
insolation
4102.008
mag
12.603
mass earth
1.93
name
Kepler-407 b
orbital period days
0.6693
radius earth
1.19
semi major au
0.0153
spect
G
sys num planets
2
sys num stars
1
tidally locked
yes
tidally locked inferred
yes

About Kepler-407 b

Kepler-407 b is an epic exoplanet. It lies about 1,103.6 light-years from Earth, shines at apparent magnitude 12.6, has spectral type G and has an equilibrium temperature near 1,983 K.

Genuinely comparable to Earth in size. Worlds in this narrow band are the ones every next-generation telescope is being pointed at.

How to see it

At apparent magnitude 12.6, it takes a larger telescope or a long-exposure image to capture.

Like any astronomical target, Kepler-407 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-407 b is an epic exoplanet

Kepler-407 b scores 76 points on Spacedle's rarity scale, which places it in the epic tier. Another 2 points would lift it into a rarer tier.

That score comes from 9 science badges — Confirmed exoplanet, Distant (over 1,000 light-years), Earth-sized, Lava world, Ultra-short period, Multi-planet system, Blasted by starlight 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.