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Trash exoplanet 14 EP

TIC 423703298 b

RA 22.9360° · Dec -17.0136° · exoplanet

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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 12.9 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.

Getting there

  • Aboard Voyager 1. ≈ 7.8 million years at Voyager 1's speed (17 km/s).

Properties

density gcc
2.09
diameter km
35364.068
discovery facility
Transiting Exoplanet Survey Satellite (TESS)
discovery method
Transit
discovery year
2026
dist ly
444.1951
host star teff
4540.37
inclination
88.3796
mag
12.923
mass earth
8.11
name
TIC 423703298 b
orbital period days
4.0371
radius earth
2.7723
sys num planets
1
sys num stars
1

About TIC 423703298 b

TIC 423703298 b is a trash exoplanet. It lies about 444.2 light-years from Earth, shines at apparent magnitude 12.92, spans roughly 2.77 Earth radii and weighs about 8.11 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 12.92, it takes a larger telescope or a long-exposure image to capture.

Like any astronomical target, TIC 423703298 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 423703298 b is a trash exoplanet

TIC 423703298 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.