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Rare exoplanet 38 EP

Kepler-272 b

RA 299.1275° · Dec 47.5938° · exoplanet

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Score breakdown

· 6 badges
38 pts · Rare
Rare 50 pts → Epic
  • Tidally locked +10
  • Super-Earth +8
  • Distant (over 1,000 light-years) +6
  • Multi-planet system +6
  • Confirmed exoplanet +5
  • Found by Kepler +3
Total score 38

12 more points to reach Epic.

Badges

  • Confirmed exoplanet · +5
  • Distant (over 1,000 light-years) · +6
  • Super-Earth · +8
  • Tidally locked · +10
  • 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 14.8 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
147
diameter km
18241.366
discovery facility
Kepler
discovery method
Transit
discovery year
2014
dist ly
2901.5099
eccentricity
0
eq temp k
1200
host star teff
5297
inclination
87.49
insolation
801.741
mag
14.811
mass earth
78
name
Kepler-272 b
orbital period days
2.9714
radius earth
1.43
semi major au
0.038
sys num planets
3
sys num stars
1
tidally locked
yes
tidally locked inferred
yes

About Kepler-272 b

Kepler-272 b is a rare exoplanet. It lies about 2,901.5 light-years from Earth, shines at apparent magnitude 14.81, has an equilibrium temperature near 1,200 K and spans roughly 1.43 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 14.81, it takes a larger telescope or a long-exposure image to capture.

Like any astronomical target, Kepler-272 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-272 b is a rare exoplanet

Kepler-272 b scores 38 points on Spacedle's rarity scale, which places it in the rare tier. Another 12 points would lift it into a rarer tier.

That score comes from 6 science badges — Confirmed exoplanet, Distant (over 1,000 light-years), Super-Earth, Tidally locked, 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.