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Common exoplanet 15 EP

24 Sex b

RA 155.8685° · Dec -0.9024° · exoplanet

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Score breakdown

· 3 badges
15 pts · Common
Common 22 pts → Uncommon
  • Multi-planet system +6
  • Confirmed exoplanet +5
  • Gas giant +4
Total score 15

7 more points to reach Uncommon.

Badges

  • Confirmed exoplanet · +5
  • Gas giant · +4
  • Multi-planet system · +6

Trivia

What it actually is

  • What it is made of. Lighter than Neptune — a puffed-up ball of hydrogen and helium with no surface anywhere on it to stand on.
  • Crowded system. One of at least 2 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 6.5 it is just past naked-eye reach — ordinary binoculars will pull it in.
  • Seen from everywhere. It sits almost on the celestial equator, so it can be seen from essentially anywhere on Earth.
  • Best time of year. It stands highest in the middle of the night around February — that's when to go looking.

Could we get there?

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

Getting there

  • Aboard Voyager 1. ≈ 4.1 million years at Voyager 1's speed (17 km/s).

Properties

density gcc
1.44
diameter km
170933.08
discovery facility
Lick Observatory
discovery method
Radial Velocity
discovery year
2010
dist ly
235.0577
eccentricity
0.09
eq temp k
471.32
host star teff
5098
insolation
8.2099
mag
6.4535
mass earth
632.46
name
24 Sex b
orbital period days
452.8
radius earth
13.4
semi major au
1.333
spect
K0 IV
sys num planets
2
sys num stars
1

About 24 Sex b

24 Sex b is a common exoplanet. It lies about 235.1 light-years from Earth, shines at apparent magnitude 6.45, has spectral type K0 IV and has an equilibrium temperature near 471 K.

Lighter than Neptune — a puffed-up ball of hydrogen and helium with no surface anywhere on it to stand on.

How to see it

At apparent magnitude 6.45, it is an easy target for binoculars.

Like any astronomical target, 24 Sex 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 24 Sex b is a common exoplanet

24 Sex b scores 15 points on Spacedle's rarity scale, which places it in the common tier. Another 7 points would lift it into a rarer tier.

That score comes from 3 science badges — Confirmed exoplanet, Gas giant and Multi-planet system — 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.