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Uncommon exoplanet 32 EP

TOI-1448 b

RA 316.3240° · Dec 57.7711° · exoplanet

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Score breakdown

· 5 badges
32 pts · Uncommon
Uncommon 34 pts → Rare
  • Tidally locked +10
  • Orbits a red dwarf +8
  • Confirmed exoplanet +5
  • Sub-Neptune +5
  • Found by TESS +4
Total score 32

2 more points to reach Rare.

Badges

  • Confirmed exoplanet · +5
  • Sub-Neptune · +5
  • Tidally locked · +10
  • Found by TESS · +4
  • Orbits a red dwarf · +8

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.

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 15.7 it is far too faint for the eye: this one belongs to cameras and long exposures.
  • Northern sky. It rides the northern half of the sky — an easier target the further north you are.
  • Best time of year. It stands highest in the middle of the night around August — 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. ≈ 4.2 million years at Voyager 1's speed (17 km/s).
  • Fastest probe ever. ≈ 373.5 thousand years even at the Parker Solar Probe's 192 km/s.

Properties

diameter km
35066.7938
discovery facility
Transiting Exoplanet Survey Satellite (TESS)
discovery method
Transit
discovery year
2024
dist ly
239.1849
eccentricity
0.36
eq temp k
426
host star teff
3412
inclination
89.62
insolation
5.45
mag
15.678
mass earth
19.5
name
TOI-1448 b
orbital period days
8.1122
radius earth
2.749
semi major au
0.0567
sys num planets
1
sys num stars
1
tidally locked
yes
tidally locked inferred
yes

About TOI-1448 b

TOI-1448 b is an uncommon exoplanet. It lies about 239.2 light-years from Earth, shines at apparent magnitude 15.68, has an equilibrium temperature near 426 K and spans roughly 2.75 Earth radii.

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

Like any astronomical target, TOI-1448 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-1448 b is an uncommon exoplanet

TOI-1448 b scores 32 points on Spacedle's rarity scale, which places it in the uncommon tier. Another 2 points would lift it into a rarer tier.

That score comes from 5 science badges — Confirmed exoplanet, Sub-Neptune, Tidally locked, Found by TESS and Orbits a red dwarf — 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.