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Rare exoplanet 45 EP

KELT-24 b

RA 161.9090° · Dec 71.6557° · exoplanet

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Score breakdown

· 5 badges
45 pts · Rare
Rare 50 pts → Epic
  • Lava world +14
  • Two suns in its sky +12
  • Tidally locked +10
  • Confirmed exoplanet +5
  • Gas giant +4
Total score 45

5 more points to reach Epic.

Badges

  • Confirmed exoplanet · +5
  • Gas giant · +4
  • Lava world · +14
  • Tidally locked · +10
  • Two suns in its sky · +12

Trivia

What makes it special

  • Lava world. Its surface is almost certainly an ocean of molten rock, kept liquid by the star it hugs.

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. Its density says rock, though lighter than Earth's mix: probably less iron, or a thick shell of water and ice over the top.

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 8.3 it is just past naked-eye reach — ordinary binoculars will pull it in.
  • Never sets. So far north that from Britain, Canada or northern Europe it never dips below the horizon — it is up every clear night of the year.
  • Best time of year. It stands highest in the middle of the night around March — that's when to go looking.

Could we get there?

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

Properties

density gcc
3.9
diameter km
162143.8555
discovery facility
KELT-North
discovery method
Transit
discovery year
2019
dist ly
314.797
eccentricity
0.0319
eq temp k
1391
host star teff
6426
inclination
89.67
insolation
624
mag
8.34
mass earth
1458.8324
multi star system
yes
name
KELT-24 b
orbital period days
5.5515
radius earth
12.711
semi major au
0.0665
spect
F7
sys num planets
1
sys num stars
2
tidally locked
yes
tidally locked inferred
yes

About KELT-24 b

KELT-24 b is a rare exoplanet. It lies about 314.8 light-years from Earth, shines at apparent magnitude 8.34, has spectral type F7 and has an equilibrium temperature near 1,391 K.

Its surface is almost certainly an ocean of molten rock, kept liquid by the star it hugs.

How to see it

At apparent magnitude 8.34, it is an easy target for binoculars.

Like any astronomical target, KELT-24 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 KELT-24 b is a rare exoplanet

KELT-24 b scores 45 points on Spacedle's rarity scale, which places it in the rare tier. Another 5 points would lift it into a rarer tier.

That score comes from 5 science badges — Confirmed exoplanet, Gas giant, Lava world, Tidally locked 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.