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Epic exoplanet 73 EP

LTT 1445 A c

RA 45.4625° · Dec -16.5945° · exoplanet

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Score breakdown

· 8 badges
73 pts · Epic
Epic 78 pts → Anomaly
  • Earth-sized +16
  • Nearby (<25 ly) +12
  • Two suns in its sky +12
  • Tidally locked +10
  • Orbits a red dwarf +8
  • Multi-planet system +6
  • Confirmed exoplanet +5
  • Found by TESS +4
Total score 73

5 more points to reach Anomaly.

Badges

  • Confirmed exoplanet · +5
  • Nearby (<25 ly) · +12
  • Earth-sized · +16
  • Tidally locked · +10
  • Multi-planet system · +6
  • Found by TESS · +4
  • Orbits a red dwarf · +8
  • Two suns in its sky · +12

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.

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. 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 10.6 you'll want a small backyard telescope.
  • 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

density gcc
5.57
diameter km
14631.3614
discovery facility
Transiting Exoplanet Survey Satellite (TESS)
discovery method
Transit
discovery year
2022
dist ly
22.4046
eccentricity
0.223
eq temp k
508
host star teff
3340
inclination
87.43
insolation
10.9
mag
10.59
mass earth
1.54
multi star system
yes
name
LTT 1445 A c
orbital period days
3.1239
radius earth
1.147
semi major au
0.0266
spect
M3.0
sys num planets
2
sys num stars
3
tidally locked
yes
tidally locked inferred
yes

About LTT 1445 A c

LTT 1445 A c is an epic exoplanet. It lies about 22.4 light-years from Earth, shines at apparent magnitude 10.59, has spectral type M3.0 and has an equilibrium temperature near 508 K.

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

Like any astronomical target, LTT 1445 A 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 LTT 1445 A c is an epic exoplanet

LTT 1445 A c scores 73 points on Spacedle's rarity scale, which places it in the epic tier. Another 5 points would lift it into a rarer tier.

That score comes from 8 science badges — Confirmed exoplanet, Nearby (<25 ly), Earth-sized, Tidally locked, Multi-planet system, Found by TESS, Orbits a red dwarf and Two suns in its sky — 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.