← Back to dex
Trash exoplanet 14 EP

TIC 154870955 b

RA 191.7457° · Dec 88.8299° · exoplanet

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

Computing the sky for your location…

Score breakdown

· 3 badges
14 pts · Trash
Trash 15 pts → Common
  • Confirmed exoplanet +5
  • Sub-Neptune +5
  • Found by TESS +4
Total score 14

1 more point to reach Common.

Badges

  • Confirmed exoplanet · +5
  • Sub-Neptune · +5
  • Found by TESS · +4

Trivia

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. Too light to be solid rock and too heavy to be all gas: most likely a deep global ocean or a thick steamy envelope over a rocky core.

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

Could we get there?

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

Getting there

  • Aboard Voyager 1. ≈ 13 million years at Voyager 1's speed (17 km/s).

Properties

density gcc
1.81
diameter km
39476.2889
discovery facility
Transiting Exoplanet Survey Satellite (TESS)
discovery method
Transit
discovery year
2026
dist ly
738.6227
host star teff
4739.58
inclination
88.185
mag
13.43
mass earth
9.77
name
TIC 154870955 b
orbital period days
7.9699
radius earth
3.0947
sys num planets
1
sys num stars
1

About TIC 154870955 b

TIC 154870955 b is a trash exoplanet. It lies about 738.6 light-years from Earth, shines at apparent magnitude 13.43, spans roughly 3.09 Earth radii and weighs about 9.77 Earth masses.

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 13.43, it takes a larger telescope or a long-exposure image to capture.

Like any astronomical target, TIC 154870955 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 TIC 154870955 b is a trash exoplanet

TIC 154870955 b scores 14 points on Spacedle's rarity scale, which places it in the trash tier. Another 1 point would lift it into a rarer tier.

That score comes from 3 science badges — Confirmed exoplanet, Sub-Neptune 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.