Anomaly exoplanet 72 EP

Kepler-78 b

RA 293.7420° · Dec 44.4483° · exoplanet

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Score breakdown

· 6 badges

72 pts · Anomaly

Anomaly 95 pts → Mythic

Ultra-hot Jupiter +26
Earth-sized +16
Ultra-short period +14
Blasted by starlight +8
Confirmed exoplanet +5
Found by Kepler +3

Total score 72

23 more points to reach Mythic.

Badges

Confirmed exoplanet · +5
Earth-sized · +16
Ultra-hot Jupiter · +26
Ultra-short period · +14
Blasted by starlight · +8
Found by Kepler · +3

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. ≈ 7.1 million years at Voyager 1's speed (17 km/s).
Fastest probe ever. ≈ 633.4 thousand years even at the Parker Solar Probe's 192 km/s.
At 10% light speed. ≈ 4057 years in a starship at a tenth of light speed.
Distance. 406 light-years from Earth.

Look-back time

Look-back time. The light you'd see left around the year 1620.

Saying hello

Say hello. A radio message and its reply would take 811 years round-trip.

Standing on it

A year here. A full year lasts just 0.4 Earth days.

By the numbers

Size. About 1.2× the width of Earth.
Mass. About 1.7× the mass of Earth.
Your weight. You'd weigh about 1.2× your Earth weight standing here.
Temperature. Around 2223 K — hot enough to vaporise iron.

How we found it

Discovery. Found by Kepler using the transit method.

Properties

density gcc: 5.33
discovery facility: Kepler
discovery method: Transit
dist ly: 405.6598
eccentricity: 0
eq temp k: 2223
insolation: 4070
mass earth: 1.68
name: Kepler-78 b
orbital period days: 0.355
radius earth: 1.201
sys num planets: 1

About Kepler-78 b

Kepler-78 b is an anomaly exoplanet. It lies about 405.7 light-years from Earth, has an equilibrium temperature near 2,223 K, spans roughly 1.2 Earth radii and weighs about 1.68 Earth masses.

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

How to see it

Like any astronomical target, Kepler-78 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 Kepler-78 b is an anomaly exoplanet

Kepler-78 b scores 72 points on Spacedle's rarity scale, which places it in the anomaly tier. Another 23 points would lift it into a rarer tier.

That score comes from 6 science badges — Confirmed exoplanet, Earth-sized, Ultra-hot Jupiter, Ultra-short period, Blasted by starlight and Found by Kepler — 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.