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Epic exoplanet 62 EP

Kepler-444 d

RA 289.7528° · Dec 41.6319° · exoplanet

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Score breakdown

· 6 badges
62 pts · Epic
Epic 78 pts → Anomaly
  • Denser than iron +18
  • Richly packed system +14
  • Two suns in its sky +12
  • Tidally locked +10
  • Confirmed exoplanet +5
  • Found by Kepler +3
Total score 62

16 more points to reach Anomaly.

Badges

  • Confirmed exoplanet · +5
  • Tidally locked · +10
  • Denser than iron · +18
  • Richly packed system · +14
  • Found by Kepler · +3
  • Two suns in its sky · +12

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 5 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 8.9 it is just past naked-eye reach — ordinary binoculars will pull it in.
  • 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
7.9
diameter km
6760.786
discovery facility
Kepler
discovery method
Transit
discovery year
2015
dist ly
118.8499
eccentricity
0.18
eq temp k
783
host star teff
5046
inclination
88.16
insolation
109.638
mag
8.87
mass earth
0.2
multi star system
yes
name
Kepler-444 d
orbital period days
6.1894
radius earth
0.53
semi major au
0.06
spect
K
sys num planets
5
sys num stars
3
tidally locked
yes
tidally locked inferred
yes

About Kepler-444 d

Kepler-444 d is an epic exoplanet. It lies about 118.8 light-years from Earth, shines at apparent magnitude 8.87, has spectral type K and has an equilibrium temperature near 783 K.

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 8.87, it is an easy target for binoculars.

Like any astronomical target, Kepler-444 d 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-444 d is an epic exoplanet

Kepler-444 d 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 6 science badges — Confirmed exoplanet, Tidally locked, Denser than iron, Richly packed system, Found by Kepler and Two suns in its sky — 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.