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Common exoplanet 16 EP

K2-276 b

RA 125.9528° · Dec 22.6339° · exoplanet

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Score breakdown

· 3 badges
16 pts · Common
Common 22 pts → Uncommon
  • Distant (over 1,000 light-years) +6
  • Confirmed exoplanet +5
  • Sub-Neptune +5
Total score 16

6 more points to reach Uncommon.

Badges

  • Confirmed exoplanet · +5
  • Distant (over 1,000 light-years) · +6
  • Sub-Neptune · +5

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

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 14.7 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 January — that's when to go looking.

Could we get there?

  • Verdict. Impossible with our current technology — and the next millennium of it.

Getting there

  • Aboard Voyager 1. ≈ 28 million years at Voyager 1's speed (17 km/s).

Properties

density gcc
1.4
diameter km
48090.874
discovery facility
K2
discovery method
Transit
discovery year
2018
dist ly
1592.137
eq temp k
583
host star teff
5139
insolation
23.5921
mag
14.654
mass earth
13.7
name
K2-276 b
orbital period days
18.7183
radius earth
3.77
semi major au
0.1291
sys num planets
1
sys num stars
1

About K2-276 b

K2-276 b is a common exoplanet. It lies about 1,592.1 light-years from Earth, shines at apparent magnitude 14.65, has an equilibrium temperature near 583 K and spans roughly 3.77 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 14.65, it takes a larger telescope or a long-exposure image to capture.

Like any astronomical target, K2-276 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 K2-276 b is a common exoplanet

K2-276 b scores 16 points on Spacedle's rarity scale, which places it in the common tier. Another 6 points would lift it into a rarer tier.

That score comes from 3 science badges — Confirmed exoplanet, Distant (over 1,000 light-years) and Sub-Neptune — 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.