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Epic exoplanet 53 EP

TOI-1736 c

RA 43.4345° · Dec 69.1013° · exoplanet

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Score breakdown

· 5 badges
53 pts · Epic
Epic 78 pts → Anomaly
  • In the habitable zone +30
  • Orbits a Sun-like star +8
  • Multi-planet system +6
  • Confirmed exoplanet +5
  • Gas giant +4
Total score 53

25 more points to reach Anomaly.

Badges

  • Confirmed exoplanet · +5
  • In the habitable zone · +30
  • Gas giant · +4
  • Multi-planet system · +6
  • Orbits a Sun-like star · +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.

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

  • What it is made of. Denser than Earth — a solid world of rock and iron, with no meaningful atmosphere to speak of by mass.
  • 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 9 it is just past naked-eye reach — ordinary binoculars will pull it in.
  • Never sets. So far north that from Britain, Canada or northern Europe it never dips below the horizon — it is up every clear night of the year.

Properties

density gcc
7.88
diameter km
159452.5
discovery facility
Haute-Provence Observatory
discovery method
Radial Velocity
discovery year
2023
dist ly
290.1099
eccentricity
0.3685
eq temp k
249
habitable zone
yes
host star teff
5636
inclination
69
insolation
0.9
mag
8.953
mass earth
2800
name
TOI-1736 c
orbital period days
571.25
radius earth
12.5
semi major au
1.37
sys num planets
2
sys num stars
1

Nearby objects

About TOI-1736 c

TOI-1736 c is an epic exoplanet. It lies about 290.1 light-years from Earth, shines at apparent magnitude 8.95, has an equilibrium temperature near 249 K and spans roughly 12.5 Earth radii.

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 8.95, it is an easy target for binoculars.

Like any astronomical target, TOI-1736 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 TOI-1736 c is an epic exoplanet

TOI-1736 c scores 53 points on Spacedle's rarity scale, which places it in the epic tier. Another 25 points would lift it into a rarer tier.

That score comes from 5 science badges — Confirmed exoplanet, In the habitable zone, Gas giant, Multi-planet system and Orbits a Sun-like star — 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.