Epic exoplanet 67 EP

HD 80653 b

RA 140.3391° · Dec 14.3679° · exoplanet

Loading sky survey…

🌌 View in 3D star map

Tonight’s visibility

Computing the sky for your location…

Score breakdown

· 6 badges

67 pts · Epic

Epic 68 pts → Anomaly

Ultra-hot Jupiter +26
Ultra-short period +14
Super-Earth +8
Blasted by starlight +8
Multi-planet system +6
Confirmed exoplanet +5

Total score 67

1 more point to reach Anomaly.

Badges

Confirmed exoplanet · +5
Super-Earth · +8
Ultra-hot Jupiter · +26
Ultra-short period · +14
Multi-planet system · +6
Blasted by starlight · +8

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. ≈ 6.3 million years at Voyager 1's speed (17 km/s).
Fastest probe ever. ≈ 559.5 thousand years even at the Parker Solar Probe's 192 km/s.
At 10% light speed. ≈ 3583 years in a starship at a tenth of light speed.
Distance. 358 light-years from Earth.

Look-back time

Look-back time. The light you'd see left around the year 1668.

Saying hello

Say hello. A radio message and its reply would take 717 years round-trip.

Standing on it

A year here. A full year lasts just 0.7 Earth days.

By the numbers

Size. About 1.6× the width of Earth.
Volume. About 4.2 Earths could fit inside it.
Mass. About 5.7× the mass of Earth.
Your weight. You'd weigh about 2.2× your Earth weight standing here.
Temperature. Around 2463 K — hot enough to vaporise iron.

How we found it

Discovery. Found by K2 using the transit method.

Cosmic context

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

Properties

density gcc: 7.47
discovery facility: K2
discovery method: Transit
dist ly: 358.315
eccentricity: 0
eq temp k: 2463
insolation: 6130
mass earth: 5.72
name: HD 80653 b
orbital period days: 0.7196
radius earth: 1.613
sys num planets: 2

Nearby objects

About HD 80653 b

HD 80653 b is an epic exoplanet. It lies about 358.3 light-years from Earth, has an equilibrium temperature near 2,463 K, spans roughly 1.61 Earth radii and weighs about 5.72 Earth masses.

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

How to see it

Like any astronomical target, HD 80653 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 HD 80653 b is an epic exoplanet

HD 80653 b scores 67 points on Spacedle's rarity scale, which places it in the epic tier. Another 1 point would lift it into a rarer tier.

That score comes from 6 science badges — Confirmed exoplanet, Super-Earth, Ultra-hot Jupiter, Ultra-short period, Multi-planet system and Blasted by starlight — 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.