← Back to dex
Rare exoplanet 39 EP

Kepler-454 b

RA 287.4786° · Dec 38.2291° · exoplanet

Loading sky survey…
🌌 View in 3D star map
Tonight’s visibility

Computing the sky for your location…

Score breakdown

· 6 badges
39 pts · Rare
Rare 50 pts → Epic
  • Two suns in its sky +12
  • Orbits a Sun-like star +8
  • Multi-planet system +6
  • Confirmed exoplanet +5
  • Sub-Neptune +5
  • Found by Kepler +3
Total score 39

11 more points to reach Epic.

Badges

  • Confirmed exoplanet · +5
  • Sub-Neptune · +5
  • Multi-planet system · +6
  • Found by Kepler · +3
  • Orbits a Sun-like star · +8
  • Two suns in its sky · +12

Trivia

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. Too light to be solid rock and too heavy to be all gas: most likely a deep global ocean or a thick steamy envelope over a rocky core.
  • 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 11.6 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.

Could we get there?

  • Verdict. Hopelessly far for any craft humanity can build today.

Properties

density gcc
2.23
diameter km
30232.194
discovery facility
Kepler
discovery method
Transit
discovery year
2015
dist ly
752.9931
eccentricity
0.32
eq temp k
916
host star teff
5687
inclination
87.9
insolation
117.7
mag
11.567
mass earth
5.4
multi star system
yes
name
Kepler-454 b
orbital period days
10.5738
radius earth
2.37
semi major au
0.0953
sys num planets
3
sys num stars
2

About Kepler-454 b

Kepler-454 b is a rare exoplanet. It lies about 753 light-years from Earth, shines at apparent magnitude 11.57, has an equilibrium temperature near 916 K and spans roughly 2.37 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 11.57, a small backyard telescope will bring it into view.

Like any astronomical target, Kepler-454 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-454 b is a rare exoplanet

Kepler-454 b scores 39 points on Spacedle's rarity scale, which places it in the rare tier. Another 11 points would lift it into a rarer tier.

That score comes from 6 science badges — Confirmed exoplanet, Sub-Neptune, Multi-planet system, Found by Kepler, Orbits a Sun-like star 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.