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Rare exoplanet 49 EP

EPIC 220492298 b

RA 16.7615° · Dec 6.5888° · exoplanet

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Score breakdown

· 5 badges
49 pts · Rare
Rare 50 pts → Epic
  • Earth-sized +16
  • Ultra-short period +14
  • Orbits a Sun-like star +8
  • Distant (over 1,000 light-years) +6
  • Confirmed exoplanet +5
Total score 49

1 more point to reach Epic.

Badges

  • Confirmed exoplanet · +5
  • Distant (over 1,000 light-years) · +6
  • Earth-sized · +16
  • Ultra-short period · +14
  • Orbits a Sun-like star · +8

Trivia

What makes it special

  • Earth-sized. Genuinely comparable to Earth in size. Worlds in this narrow band are the ones every next-generation telescope is being pointed at.

Hard to believe

  • A year in a day. Its entire year is over in 18.3 hours. Birthdays here would come round faster than meals.

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 14 it is far too faint for the eye: this one belongs to cameras and long exposures.
  • 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 October — that's when to go looking.

Properties

density gcc
5.31
diameter km
12628.638
discovery facility
K2
discovery method
Transit
discovery year
2021
dist ly
2036.8834
host star teff
5620
inclination
92.6
mag
13.991
mass earth
0.937
name
EPIC 220492298 b
orbital period days
0.7624
radius earth
0.99
sys num planets
1
sys num stars
1

Nearby objects

About EPIC 220492298 b

EPIC 220492298 b is a rare exoplanet. It lies about 2,036.9 light-years from Earth, shines at apparent magnitude 13.99, spans roughly 0.99 Earth radii and weighs about 0.94 Earth masses.

Genuinely comparable to Earth in size. Worlds in this narrow band are the ones every next-generation telescope is being pointed at.

How to see it

At apparent magnitude 13.99, it takes a larger telescope or a long-exposure image to capture.

Like any astronomical target, EPIC 220492298 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 EPIC 220492298 b is a rare exoplanet

EPIC 220492298 b scores 49 points on Spacedle's rarity scale, which places it in the rare tier. Another 1 point would lift it into a rarer tier.

That score comes from 5 science badges — Confirmed exoplanet, Distant (over 1,000 light-years), Earth-sized, Ultra-short period and Orbits a Sun-like star — 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.