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Epic exoplanet 54 EP

Barnard e

RA 269.4486° · Dec 4.7380° · exoplanet

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Score breakdown

· 5 badges
54 pts · Epic
Epic 78 pts → Anomaly
  • Stellar next door (<10 ly) +25
  • Tidally locked +10
  • Orbits a red dwarf +8
  • Multi-planet system +6
  • Confirmed exoplanet +5
Total score 54

24 more points to reach Anomaly.

Badges

  • Confirmed exoplanet · +5
  • Stellar next door (<10 ly) · +25
  • Tidally locked · +10
  • Multi-planet system · +6
  • Orbits a red dwarf · +8

Trivia

What makes it special

  • Next-door neighbour. One of the closest objects of its kind to the Sun — a first port of call for any interstellar mission we ever build.

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.
  • Crowded system. One of at least 4 planets orbiting its star.

Sense of scale

  • In perspective. Inside our stellar backyard: every radio broadcast humanity has ever made has already swept past it.

Find it in the sky

  • How to spot it. At magnitude 9.5 you'll want a small backyard telescope.
  • 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 June — that's when to go looking.

Properties

density gcc
4.1
diameter km
8125.6994
discovery facility
Gemini Observatory
discovery method
Radial Velocity
discovery year
2025
dist ly
5.9574
eccentricity
0.04
eq temp k
340
host star teff
3195
insolation
2.4456
mag
9.54
mass earth
0.193
name
Barnard e
orbital period days
6.7392
radius earth
0.637
semi major au
0.0381
spect
M3.5-4 V
sys num planets
4
sys num stars
1
tidally locked
yes
tidally locked inferred
yes

About Barnard e

Barnard e is an epic exoplanet. It lies about 6 light-years from Earth, shines at apparent magnitude 9.54, has spectral type M3.5-4 V and has an equilibrium temperature near 340 K.

One of the closest objects of its kind to the Sun — a first port of call for any interstellar mission we ever build.

How to see it

At apparent magnitude 9.54, a small backyard telescope will bring it into view.

Like any astronomical target, Barnard e 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 Barnard e is an epic exoplanet

Barnard e scores 54 points on Spacedle's rarity scale, which places it in the epic tier. Another 24 points would lift it into a rarer tier.

That score comes from 5 science badges — Confirmed exoplanet, Stellar next door (<10 ly), Tidally locked, Multi-planet system and Orbits a red dwarf — 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.