Epic exoplanet 61 EP

CT Cha b

RA 166.0375° · Dec -76.4554° · exoplanet

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Score breakdown

· 5 badges

61 pts · Epic

Epic 68 pts → Anomaly

Ultra-hot Jupiter +26
Directly imaged +16
Hot Jupiter +10
Confirmed exoplanet +5
Gas giant +4

Total score 61

7 more points to reach Anomaly.

Badges

Confirmed exoplanet · +5
Gas giant · +4
Hot Jupiter · +10
Ultra-hot Jupiter · +26
Directly imaged · +16

Trivia

What makes it special

Ultra-hot Jupiter. So hot that iron vaporises and rains back down as molten metal.

Could we get there?

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

Getting there

Aboard Voyager 1. ≈ 10.9 million years at Voyager 1's speed (17 km/s).
Fastest probe ever. ≈ 971.3 thousand years even at the Parker Solar Probe's 192 km/s.
At 10% light speed. ≈ 6220 years in a starship at a tenth of light speed.
Distance. 622 light-years from Earth.

Look-back time

Look-back time. The light you'd see left around the year 1404.

Saying hello

Say hello. A radio message and its reply would take 1244 years round-trip.

By the numbers

Size. About 24.7× the width of Earth.
Volume. About 15 thousand Earths could fit inside it.
Mass. Roughly 5403× Earth's mass — about 17 Jupiters.
Your weight. You'd weigh about 8.9× your Earth weight standing here.
Temperature. Around 2600 K — hot enough to vaporise iron.

How we found it

Discovery. Found by Paranal Observatory using the imaging method.

Properties

density gcc: 1.98
discovery facility: Paranal Observatory
discovery method: Imaging
dist ly: 622.0447
eq temp k: 2600
insolation: 0
mass earth: 5403
name: CT Cha b
radius earth: 24.66
sys num planets: 1

About CT Cha b

CT Cha b is an epic exoplanet. It lies about 622 light-years from Earth, has an equilibrium temperature near 2,600 K, spans roughly 24.66 Earth radii and weighs about 5,403 Earth masses.

So hot that iron vaporises and rains back down as molten metal.

How to see it

Like any astronomical target, CT Cha 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 CT Cha b is an epic exoplanet

CT Cha b scores 61 points on Spacedle's rarity scale, which places it in the epic tier. Another 7 points would lift it into a rarer tier.

That score comes from 5 science badges — Confirmed exoplanet, Gas giant, Hot Jupiter, Ultra-hot Jupiter and Directly imaged — 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.