← Back to dex
Trash exoplanet 13 EP

NGTS-11 b

RA 23.5214° · Dec -14.4191° · exoplanet

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

Computing the sky for your location…

Score breakdown

· 3 badges
13 pts · Trash
Trash 15 pts → Common
  • Confirmed exoplanet +5
  • Gas giant +4
  • Found by TESS +4
Total score 13

2 more points to reach Common.

Badges

  • Confirmed exoplanet · +5
  • Gas giant · +4
  • Found by TESS · +4

Trivia

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 12.5 it is far too faint for the eye: this one belongs to cameras and long exposures.
  • 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 October — that's when to go looking.

Could we get there?

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

Properties

density gcc
0.78
diameter km
116818.1288
discovery facility
Transiting Exoplanet Survey Satellite (TESS)
discovery method
Transit
discovery year
2020
dist ly
621.0728
eccentricity
0.13
eq temp k
435
host star teff
5050
inclination
89.16
insolation
9.242
mag
12.456
mass earth
109.3335
name
NGTS-11 b
orbital period days
35.4553
radius earth
9.1578
semi major au
0.201
spect
K
sys num planets
1
sys num stars
1

About NGTS-11 b

NGTS-11 b is a trash exoplanet. It lies about 621.1 light-years from Earth, shines at apparent magnitude 12.46, has spectral type K and has an equilibrium temperature near 435 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 12.46, it takes a larger telescope or a long-exposure image to capture.

Like any astronomical target, NGTS-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 NGTS-11 b is a trash exoplanet

NGTS-11 b scores 13 points on Spacedle's rarity scale, which places it in the trash tier. Another 2 points would lift it into a rarer tier.

That score comes from 3 science badges — Confirmed exoplanet, Gas giant 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.