Epic exoplanet 49 EP

LTT 9779 b

RA 358.6689° · Dec -37.6282° · exoplanet

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Score breakdown

· 6 badges

49 pts · Epic

Epic 68 pts → Anomaly

Lava world +14
Ultra-short period +14
Blasted by starlight +8
Confirmed exoplanet +5
Neptune-like +4
Found by TESS +4

Total score 49

19 more points to reach Anomaly.

Badges

Confirmed exoplanet · +5
Neptune-like · +4
Lava world · +14
Ultra-short period · +14
Blasted by starlight · +8
Found by TESS · +4

Trivia

What makes it special

Lava world. Its surface is likely an ocean of molten rock.

Could we get there?

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

Getting there

Aboard Voyager 1. ≈ 4.6 million years at Voyager 1's speed (17 km/s).
Fastest probe ever. ≈ 409.6 thousand years even at the Parker Solar Probe's 192 km/s.
At 10% light speed. ≈ 2624 years in a starship at a tenth of light speed.
Distance. 262 light-years from Earth.

Look-back time

Look-back time. The light you'd see left around the year 1764.

Saying hello

Say hello. A radio message and its reply would take 525 years round-trip.

Standing on it

A year here. A full year lasts just 0.8 Earth days.

By the numbers

Size. About 4.7× the width of Earth.
Volume. About 105 Earths could fit inside it.
Mass. About 29.3× the mass of Earth.
Your weight. You'd weigh about 1.3× your Earth weight standing here.
Temperature. Around 1705°C — hotter than a self-cleaning oven.

How we found it

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

Properties

density gcc: 1.536
discovery facility: Transiting Exoplanet Survey Satellite (TESS)
discovery method: Transit
dist ly: 262.3511
eccentricity: 0
eq temp k: 1978
insolation: 1781.1556
mass earth: 29.32
name: LTT 9779 b
orbital period days: 0.7921
radius earth: 4.72
sys num planets: 1

About LTT 9779 b

LTT 9779 b is an epic exoplanet. It lies about 262.4 light-years from Earth, has an equilibrium temperature near 1,978 K, spans roughly 4.72 Earth radii and weighs about 29.32 Earth masses.

Its surface is likely an ocean of molten rock.

How to see it

Like any astronomical target, LTT 9779 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 LTT 9779 b is an epic exoplanet

LTT 9779 b scores 49 points on Spacedle's rarity scale, which places it in the epic tier. Another 19 points would lift it into a rarer tier.

That score comes from 6 science badges — Confirmed exoplanet, Neptune-like, Lava world, Ultra-short period, Blasted by starlight 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.