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Rare exoplanet 35 EP

L 98-59 e

RA 124.5329° · Dec -68.3145° · exoplanet

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Score breakdown

· 4 badges
35 pts · Rare
Rare 50 pts → Epic
  • Richly packed system +14
  • Super-Earth +8
  • Orbits a red dwarf +8
  • Confirmed exoplanet +5
Total score 35

15 more points to reach Epic.

Badges

  • Confirmed exoplanet · +5
  • Super-Earth · +8
  • Richly packed system · +14
  • Orbits a red dwarf · +8

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. 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 5 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 11.7 you'll want a small backyard telescope.
  • Southern sky only. So far south it never rises for most of the northern hemisphere. To see it you'd have to travel to Chile, South Africa or Australia.
  • 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.

Properties

density gcc
5.2
diameter km
19006.738
discovery facility
Multiple Observatories
discovery method
Radial Velocity
discovery year
2021
dist ly
34.6358
eccentricity
0.012
eq temp k
347
host star teff
3415
inclination
80
insolation
2.4
mag
11.685
mass earth
2.82
name
L 98-59 e
orbital period days
12.8278
radius earth
1.49
semi major au
0.0712
spect
M3 V
sys num planets
5
sys num stars
1

About L 98-59 e

L 98-59 e is a rare exoplanet. It lies about 34.6 light-years from Earth, shines at apparent magnitude 11.69, has spectral type M3 V and has an equilibrium temperature near 347 K.

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 11.69, a small backyard telescope will bring it into view.

Like any astronomical target, L 98-59 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 L 98-59 e is a rare exoplanet

L 98-59 e scores 35 points on Spacedle's rarity scale, which places it in the rare tier. Another 15 points would lift it into a rarer tier.

That score comes from 4 science badges — Confirmed exoplanet, Super-Earth, Richly packed 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.