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Epic exoplanet 67 EP

LP 890-9 c

RA 64.1309° · Dec -28.3158° · exoplanet

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Score breakdown

· 6 badges
67 pts · Epic
Epic 78 pts → Anomaly
  • In the habitable zone +30
  • Tidally locked +10
  • Super-Earth +8
  • Orbits a red dwarf +8
  • Multi-planet system +6
  • Confirmed exoplanet +5
Total score 67

11 more points to reach Anomaly.

Badges

  • Confirmed exoplanet · +5
  • In the habitable zone · +30
  • Super-Earth · +8
  • Tidally locked · +10
  • Multi-planet system · +6
  • Orbits a red dwarf · +8

Trivia

What makes it special

  • Goldilocks zone. Sits where it's neither too hot nor too cold — liquid water could exist on a surface here.

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 the zone means. The habitable zone is only about temperature: it is the band where liquid water could survive on a surface. It is a promising address, not evidence of anything living.
  • 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 18 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.
  • Best time of year. It stands highest in the middle of the night around November — that's when to go looking.

Properties

diameter km
17437.7254
discovery facility
SPECULOOS Southern Observatory
discovery method
Transit
discovery year
2022
dist ly
105.7717
eq temp k
272
habitable zone
yes
host star teff
2850
inclination
89.287
insolation
0.906
mag
18
mass earth
25.3
name
LP 890-9 c
orbital period days
8.4575
radius earth
1.367
semi major au
0.0398
spect
M6 V
sys num planets
2
sys num stars
1
tidally locked
yes
tidally locked inferred
yes

About LP 890-9 c

LP 890-9 c is an epic exoplanet. It lies about 105.8 light-years from Earth, shines at apparent magnitude 18, has spectral type M6 V and has an equilibrium temperature near 272 K.

Sits where it's neither too hot nor too cold — liquid water could exist on a surface here.

How to see it

At apparent magnitude 18, it takes a larger telescope or a long-exposure image to capture.

Like any astronomical target, LP 890-9 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 LP 890-9 c is an epic exoplanet

LP 890-9 c scores 67 points on Spacedle's rarity scale, which places it in the epic tier. Another 11 points would lift it into a rarer tier.

That score comes from 6 science badges — Confirmed exoplanet, In the habitable zone, Super-Earth, 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.