Epic exoplanet 59 EP

TOI-1338 b

RA 92.1331° · Dec -59.5410° · exoplanet

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Score breakdown

· 6 badges

59 pts · Epic

Epic 68 pts → Anomaly

In the habitable zone +30
Distant (>1000 ly) +10
Multi-planet system +6
Confirmed exoplanet +5
Gas giant +4
Found by TESS +4

Total score 59

9 more points to reach Anomaly.

Badges

Confirmed exoplanet · +5
In the habitable zone · +30
Gas giant · +4
Multi-planet system · +6
Found by TESS · +4
Distant (>1000 ly) · +10

Trivia

What makes it special

Goldilocks zone. Sits where it's neither too hot nor too cold — liquid water could exist.

Could we get there?

Verdict. Impossible with our current technology — and the next millennium of it.

Getting there

Aboard Voyager 1. ≈ 22.9 million years at Voyager 1's speed (17 km/s).
Fastest probe ever. ≈ 2 million years even at the Parker Solar Probe's 192 km/s.
At 10% light speed. ≈ 13 thousand years in a starship at a tenth of light speed.
Distance. 1301 light-years from Earth.

Look-back time

Look-back time. The light you'd see left around the year 725.

Saying hello

Say hello. A radio message and its reply would take 2603 years round-trip.

Standing on it

A year here. A full year lasts just 95.4 Earth days.

By the numbers

Size. About 7.7× the width of Earth.
Volume. About 450 Earths could fit inside it.
Mass. About 11.3× the mass of Earth.
Your weight. You'd weigh about 0.2× your Earth weight standing here.
Density. Less dense than water — drop it in a big enough ocean and it would float.
Temperature. A surprisingly temperate -18°C average.

How we found it

Discovery. Found by Transiting Exoplanet Survey Satellite (TESS) using the transit method.

Cosmic context

Crowded system. One of at least 2 planets orbiting its star.

Properties

density gcc: 0.56
discovery facility: Transiting Exoplanet Survey Satellite (TESS)
discovery method: Transit
dist ly: 1301.4179
eccentricity: 0.0331
eq temp k: 254.65
habitable zone: yes
insolation: 0.9938
mass earth: 11.3
name: TOI-1338 b
orbital period days: 95.4001
radius earth: 7.661
sys num planets: 2

About TOI-1338 b

TOI-1338 b is an epic exoplanet. It lies about 1,301.4 light-years from Earth, has an equilibrium temperature near 255 K, spans roughly 7.66 Earth radii and weighs about 11.3 Earth masses.

Sits where it's neither too hot nor too cold — liquid water could exist.

How to see it

Like any astronomical target, TOI-1338 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-1338 b is an epic exoplanet

TOI-1338 b scores 59 points on Spacedle's rarity scale, which places it in the epic tier. Another 9 points would lift it into a rarer tier.

That score comes from 6 science badges — Confirmed exoplanet, In the habitable zone, Gas giant, Multi-planet system, Found by TESS and Distant (>1000 ly) — 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.