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Epic exoplanet 71 EP

TOI-2580 b

RA 62.1992° · Dec 67.1165° · exoplanet

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Score breakdown

· 8 badges
71 pts · Epic
Epic 78 pts → Anomaly
  • Ultra-hot Jupiter +26
  • Puffy low-density world +12
  • Tidally locked +10
  • Distant (over 1,000 light-years) +6
  • Confirmed exoplanet +5
  • Gas giant +4
  • Blasted by starlight +4
  • Found by TESS +4
Total score 71

7 more points to reach Anomaly.

Badges

  • Confirmed exoplanet · +5
  • Distant (over 1,000 light-years) · +6
  • Gas giant · +4
  • Ultra-hot Jupiter · +26
  • Tidally locked · +10
  • Puffy low-density world · +12
  • Blasted by starlight · +4
  • Found by TESS · +4

Trivia

What makes it special

  • Ultra-hot Jupiter. So hot that iron vaporises on the dayside, blows around to the night side and rains back down as molten metal.

Hard to believe

  • It would float. It is less dense than water. Drop it in a big enough ocean and the whole world would bob on the surface.

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. Lighter than Neptune — a puffed-up ball of hydrogen and helium with no surface anywhere on it to stand on.

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 11.4 you'll want a small backyard telescope.
  • 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.
  • Best time of year. It stands highest in the middle of the night around November — that's when to go looking.

Properties

density gcc
0.22
diameter km
221625.1995
discovery facility
Transiting Exoplanet Survey Satellite (TESS)
discovery method
Transit
discovery year
2024
dist ly
1236.9564
eccentricity
0.08
eq temp k
2410
host star teff
6120
insolation
1730
mag
11.419
mass earth
200.2319
name
TOI-2580 b
orbital period days
3.3977
radius earth
17.3739
semi major au
0.048
spect
F
sys num planets
1
sys num stars
1
tidally locked
yes
tidally locked inferred
yes

About TOI-2580 b

TOI-2580 b is an epic exoplanet. It lies about 1,237 light-years from Earth, shines at apparent magnitude 11.42, has spectral type F and has an equilibrium temperature near 2,410 K.

So hot that iron vaporises on the dayside, blows around to the night side and rains back down as molten metal.

How to see it

At apparent magnitude 11.42, a small backyard telescope will bring it into view.

Like any astronomical target, TOI-2580 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-2580 b is an epic exoplanet

TOI-2580 b scores 71 points on Spacedle's rarity scale, which places it in the epic tier. Another 7 points would lift it into a rarer tier.

That score comes from 8 science badges — Confirmed exoplanet, Distant (over 1,000 light-years), Gas giant, Ultra-hot Jupiter, Tidally locked, Puffy low-density world, Blasted by starlight 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.