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Common exoplanet 20 EP

K2-182 b

RA 130.1800° · Dec 10.9830° · exoplanet

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Score breakdown

· 3 badges
20 pts · Common
Common 22 pts → Uncommon
  • Tidally locked +10
  • Confirmed exoplanet +5
  • Sub-Neptune +5
Total score 20

2 more points to reach Uncommon.

Badges

  • Confirmed exoplanet · +5
  • Sub-Neptune · +5
  • Tidally locked · +10

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. Denser than Earth — a solid world of rock and iron, with no meaningful atmosphere to speak of by mass.

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 11.8 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 January — 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. ≈ 8.9 million years at Voyager 1's speed (17 km/s).

Properties

density gcc
5.7
diameter km
34602.1279
discovery facility
K2
discovery method
Transit
discovery year
2018
dist ly
504.9873
eccentricity
0.071
eq temp k
965.8
host star teff
5128
inclination
88.91
insolation
146.9
mag
11.833
mass earth
20.9767
name
K2-182 b
orbital period days
4.737
radius earth
2.7126
semi major au
0.0517
sys num planets
1
sys num stars
1
tidally locked
yes
tidally locked inferred
yes

About K2-182 b

K2-182 b is a common exoplanet. It lies about 505 light-years from Earth, shines at apparent magnitude 11.83, has an equilibrium temperature near 966 K and spans roughly 2.71 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 11.83, a small backyard telescope will bring it into view.

Like any astronomical target, K2-182 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 K2-182 b is a common exoplanet

K2-182 b scores 20 points on Spacedle's rarity scale, which places it in the common tier. Another 2 points would lift it into a rarer tier.

That score comes from 3 science badges — Confirmed exoplanet, Sub-Neptune and Tidally locked — 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.