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Rare exoplanet 47 EP

EPIC 206042996 c

RA 337.5136° · Dec -13.6101° · exoplanet

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Score breakdown

· 5 badges
47 pts · Rare
Rare 50 pts → Epic
  • Earth-sized +16
  • Ultra-short period +14
  • Distant (over 1,000 light-years) +6
  • Multi-planet system +6
  • Confirmed exoplanet +5
Total score 47

3 more points to reach Epic.

Badges

  • Confirmed exoplanet · +5
  • Distant (over 1,000 light-years) · +6
  • Earth-sized · +16
  • Ultra-short period · +14
  • Multi-planet system · +6

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 8.5 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. Denser than Earth — a solid world of rock and iron, with no meaningful atmosphere to speak of by mass.
  • 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 16.6 it is far too faint for the eye: this one belongs to cameras and long exposures.
  • Southern sky. It rides the southern half of the sky — an easier target the further south you are.

Properties

density gcc
5.95
diameter km
15307.44
discovery facility
K2
discovery method
Transit
discovery year
2021
dist ly
1473.4717
host star teff
4114
inclination
89.9
mag
16.59
mass earth
1.87
name
EPIC 206042996 c
orbital period days
0.3549
radius earth
1.2
sys num planets
2
sys num stars
1

About EPIC 206042996 c

EPIC 206042996 c is a rare exoplanet. It lies about 1,473.5 light-years from Earth, shines at apparent magnitude 16.59, spans roughly 1.2 Earth radii and weighs about 1.87 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 16.59, it takes a larger telescope or a long-exposure image to capture.

Like any astronomical target, EPIC 206042996 c 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 206042996 c is a rare exoplanet

EPIC 206042996 c scores 47 points on Spacedle's rarity scale, which places it in the rare tier. Another 3 points 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 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.