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Epic exoplanet 59 EP

Kepler-409 b

RA 293.6792° · Dec 46.8527° · exoplanet

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Score breakdown

· 6 badges
59 pts · Epic
Epic 78 pts → Anomaly
  • Denser than iron +18
  • Earth-sized +16
  • Eccentric orbit +9
  • Orbits a Sun-like star +8
  • Confirmed exoplanet +5
  • Found by Kepler +3
Total score 59

19 more points to reach Anomaly.

Badges

  • Confirmed exoplanet · +5
  • Earth-sized · +16
  • Eccentric orbit · +9
  • Denser than iron · +18
  • 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.

Hard to believe

  • Denser than iron. It is packed tighter than solid iron — whatever it is made of, it is not ordinary rock.

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.

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 9.6 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 July — that's when to go looking.

Properties

density gcc
19
diameter km
15294.6838
discovery facility
Kepler
discovery method
Transit
discovery year
2014
dist ly
222.3503
eccentricity
0.69
eq temp k
438
host star teff
5421
inclination
86.3
insolation
6.15
mag
9.636
mass earth
6
name
Kepler-409 b
orbital period days
68.9583
radius earth
1.199
semi major au
0.3192
sys num planets
1
sys num stars
1

About Kepler-409 b

Kepler-409 b is an epic exoplanet. It lies about 222.4 light-years from Earth, shines at apparent magnitude 9.64, has an equilibrium temperature near 438 K and spans roughly 1.2 Earth radii.

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

Like any astronomical target, Kepler-409 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-409 b is an epic exoplanet

Kepler-409 b 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 6 science badges — Confirmed exoplanet, Earth-sized, Eccentric orbit, Denser than iron, 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.