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Epic exoplanet 51 EP

TOI-411 b

RA 54.8195° · Dec -42.7630° · exoplanet

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Score breakdown

· 6 badges
51 pts · Epic
Epic 78 pts → Anomaly
  • Denser than iron +18
  • Tidally locked +10
  • Super-Earth +8
  • Multi-planet system +6
  • Confirmed exoplanet +5
  • Found by TESS +4
Total score 51

27 more points to reach Anomaly.

Badges

  • Confirmed exoplanet · +5
  • Super-Earth · +8
  • Tidally locked · +10
  • Denser than iron · +18
  • Multi-planet system · +6
  • Found by TESS · +4

Trivia

Hard to believe

  • Denser than iron. It is packed tighter than solid iron — whatever it is made of, it is not ordinary rock.

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 3 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 8.3 it is just past naked-eye reach — ordinary binoculars will pull it in.
  • 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
18.96
diameter km
17373.9444
discovery facility
Transiting Exoplanet Survey Satellite (TESS)
discovery method
Transit
discovery year
2022
dist ly
204.7581
eccentricity
0.126
eq temp k
1241
host star teff
6169
inclination
88.3
insolation
495.139
mag
8.27
mass earth
13.71
name
TOI-411 b
orbital period days
4.0403
radius earth
1.362
semi major au
0.0573
spect
F7/F8V
sys num planets
3
sys num stars
1
tidally locked
yes
tidally locked inferred
yes

About TOI-411 b

TOI-411 b is an epic exoplanet. It lies about 204.8 light-years from Earth, shines at apparent magnitude 8.27, has spectral type F7/F8V and has an equilibrium temperature near 1,241 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 8.27, it is an easy target for binoculars.

Like any astronomical target, TOI-411 b 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 TOI-411 b is an epic exoplanet

TOI-411 b scores 51 points on Spacedle's rarity scale, which places it in the epic tier. Another 27 points would lift it into a rarer tier.

That score comes from 6 science badges — Confirmed exoplanet, Super-Earth, Tidally locked, Denser than iron, Multi-planet system and Found by TESS — 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.