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Rare exoplanet 43 EP

Kepler-450 c

RA 295.4866° · Dec 51.0135° · exoplanet

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Score breakdown

· 6 badges
43 pts · Rare
Rare 50 pts → Epic
  • Denser than iron +18
  • Distant (over 1,000 light-years) +6
  • Multi-planet system +6
  • Confirmed exoplanet +5
  • Sub-Neptune +5
  • Found by Kepler +3
Total score 43

7 more points to reach Epic.

Badges

  • Confirmed exoplanet · +5
  • Distant (over 1,000 light-years) · +6
  • Sub-Neptune · +5
  • Denser than iron · +18
  • Multi-planet system · +6
  • Found by Kepler · +3

Trivia

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.
  • 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 12 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
8.8
diameter km
33421.244
discovery facility
Kepler
discovery method
Transit
discovery year
2015
dist ly
1487.2127
eccentricity
0.02
eq temp k
944
host star teff
6197.21
inclination
88.73
insolation
213.731
mag
11.991
mass earth
12.5
name
Kepler-450 c
orbital period days
15.4131
radius earth
2.62
semi major au
0.1335
sys num planets
3
sys num stars
1

About Kepler-450 c

Kepler-450 c is a rare exoplanet. It lies about 1,487.2 light-years from Earth, shines at apparent magnitude 11.99, has an equilibrium temperature near 944 K and spans roughly 2.62 Earth radii.

It orbits closer to its star than Mercury does to the Sun, completing a lap in less time than Mercury takes.

How to see it

At apparent magnitude 11.99, a small backyard telescope will bring it into view.

Like any astronomical target, Kepler-450 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 Kepler-450 c is a rare exoplanet

Kepler-450 c scores 43 points on Spacedle's rarity scale, which places it in the rare tier. Another 7 points would lift it into a rarer tier.

That score comes from 6 science badges — Confirmed exoplanet, Distant (over 1,000 light-years), Sub-Neptune, Denser than iron, Multi-planet system 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.