← Back to dex
Epic exoplanet 53 EP

KELT-11 b

RA 161.7069° · Dec -9.3994° · exoplanet

Loading sky survey…
🌌 View in 3D star map
Tonight’s visibility

Computing the sky for your location…

Score breakdown

· 6 badges
53 pts · Epic
Epic 68 pts → Anomaly
  • Lava world +14
  • Puffy low-density world +12
  • Hot Jupiter +10
  • Blasted by starlight +8
  • Confirmed exoplanet +5
  • Gas giant +4
Total score 53

15 more points to reach Anomaly.

Badges

  • Confirmed exoplanet · +5
  • Gas giant · +4
  • Hot Jupiter · +10
  • Lava world · +14
  • Puffy low-density world · +12
  • Blasted by starlight · +8

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.

Could we get there?

  • Verdict. Hopelessly far for any craft humanity can build today.

Getting there

  • Aboard Voyager 1. ≈ 5.7 million years at Voyager 1's speed (17 km/s).
  • Fastest probe ever. ≈ 505 thousand years even at the Parker Solar Probe's 192 km/s.
  • At 10% light speed. ≈ 3234 years in a starship at a tenth of light speed.
  • Distance. 323 light-years from Earth.

Look-back time

  • Look-back time. The light you'd see left around the year 1703.

Saying hello

  • Say hello. A radio message and its reply would take 647 years round-trip.

Standing on it

  • A year here. A full year lasts just 4.7 Earth days.

By the numbers

  • Size. About 15.1× the width of Earth.
  • Volume. About 3465 Earths could fit inside it.
  • Mass. Roughly 65.2× Earth's mass — about 0.2 Jupiters.
  • Your weight. You'd weigh about 0.3× your Earth weight standing here.
  • Density. Less dense than water — drop it in a big enough ocean and it would float.
  • Temperature. Around 1439°C — hotter than a self-cleaning oven.

How we found it

  • Discovery. Found by KELT-South using the transit method.

Properties

density gcc
0.093
discovery facility
KELT-South
discovery method
Transit
dist ly
323.415
eccentricity
0
eq temp k
1712
insolation
1433
mass earth
65.1548
name
KELT-11 b
orbital period days
4.7362
radius earth
15.1321
sys num planets
1

About KELT-11 b

KELT-11 b is an epic exoplanet. It lies about 323.4 light-years from Earth, has an equilibrium temperature near 1,712 K, spans roughly 15.13 Earth radii and weighs about 65.15 Earth masses.

Its surface is likely an ocean of molten rock.

How to see it

Like any astronomical target, KELT-11 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 KELT-11 b is an epic exoplanet

KELT-11 b scores 53 points on Spacedle's rarity scale, which places it in the epic tier. Another 15 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 Blasted by starlight — 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.

spacedle A daily roll through the real universe. © 2026 spacedle. Buy me a coffee

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.