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Epic exoplanet 49 EP

TOI-3540 A b

RA 328.9114° · Dec 28.1795° · exoplanet

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Score breakdown

· 6 badges
49 pts · Epic
Epic 68 pts → Anomaly
  • Lava world +14
  • Puffy low-density world +12
  • Hot Jupiter +10
  • Confirmed exoplanet +5
  • Gas giant +4
  • Found by TESS +4
Total score 49

19 more points to reach Anomaly.

Badges

  • Confirmed exoplanet · +5
  • Gas giant · +4
  • Hot Jupiter · +10
  • Lava world · +14
  • Puffy low-density world · +12
  • Found by TESS · +4

Trivia

What makes it special

  • Lava world. Its surface is likely an ocean of molten rock.
  • Cotton-candy planet. So low-density it would float on water.

Standing on it

  • A year here. A full year lasts just 3.1 Earth days.

By the numbers

  • Size. About 23.5× the width of Earth.
  • Volume. About 13 thousand Earths could fit inside it.
  • Mass. Roughly 375× Earth's mass — about 1.2 Jupiters.
  • Your weight. You'd weigh about 0.7× your Earth weight standing here.
  • Density. Less dense than water — drop it in a big enough ocean and it would float.
  • Temperature. Around 1225°C — hotter than a self-cleaning oven.

How we found it

  • Discovery. Found by Transiting Exoplanet Survey Satellite (TESS) using the transit method.

Properties

density gcc
0.065
discovery facility
Transiting Exoplanet Survey Satellite (TESS)
discovery method
Transit
eccentricity
0
eq temp k
1498
insolation
841.3
mass earth
375.0375
name
TOI-3540 A b
orbital period days
3.12
radius earth
23.5389
sys num planets
1

About TOI-3540 A b

TOI-3540 A b is an epic exoplanet. It has an equilibrium temperature near 1,498 K, spans roughly 23.54 Earth radii, weighs about 375.04 Earth masses and completes an orbit every 3.12 days.

Its surface is likely an ocean of molten rock.

How to see it

Like any astronomical target, TOI-3540 A 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-3540 A b is an epic exoplanet

TOI-3540 A b scores 49 points on Spacedle's rarity scale, which places it in the epic tier. Another 19 points would lift it into a rarer tier.

That score comes from 6 science badges — Confirmed exoplanet, Gas giant, Hot Jupiter, Lava world, Puffy low-density world 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.

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Sky imagery and survey data courtesy of Aladin Lite & CDS, Strasbourg. Object data from the NASA Exoplanet Archive, JPL Small-Body Database, and the ATNF Pulsar Catalogue.