Anomaly exoplanet 79 EP

HIP 78530 b

RA 240.4810° · Dec -21.9805° · exoplanet

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Score breakdown

· 6 badges

79 pts · Anomaly

Anomaly 95 pts → Mythic

Ultra-hot Jupiter +26
Denser than iron +18
Directly imaged +16
Hot Jupiter +10
Confirmed exoplanet +5
Gas giant +4

Total score 79

16 more points to reach Mythic.

Badges

Confirmed exoplanet · +5
Gas giant · +4
Hot Jupiter · +10
Ultra-hot Jupiter · +26
Denser than iron · +18
Directly imaged · +16

Trivia

What makes it special

Ultra-hot Jupiter. So hot that iron vaporises and rains back down as molten metal.
Heavyweight. Packed denser than solid iron.

Could we get there?

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

Getting there

Aboard Voyager 1. ≈ 7.8 million years at Voyager 1's speed (17 km/s).
Fastest probe ever. ≈ 696.5 thousand years even at the Parker Solar Probe's 192 km/s.
At 10% light speed. ≈ 4460 years in a starship at a tenth of light speed.
Distance. 446 light-years from Earth.

Look-back time

Look-back time. The light you'd see left around the year 1580.

Saying hello

Say hello. A radio message and its reply would take 892 years round-trip.

By the numbers

Size. About 12× the width of Earth.
Volume. About 1728 Earths could fit inside it.
Mass. Roughly 7300× Earth's mass — about 23 Jupiters.
Your weight. You'd weigh about 50.7× your Earth weight standing here.
Density. Denser than solid iron.
Temperature. Around 2700 K — hot enough to vaporise iron.

How we found it

Discovery. Found by Gemini Observatory using the imaging method.

Properties

density gcc: 23.2
discovery facility: Gemini Observatory
discovery method: Imaging
dist ly: 446.0477
eq temp k: 2700
insolation: 0
mass earth: 7300
name: HIP 78530 b
radius earth: 12
sys num planets: 1

Nearby objects

About HIP 78530 b

HIP 78530 b is an anomaly exoplanet. It lies about 446 light-years from Earth, has an equilibrium temperature near 2,700 K, spans roughly 12 Earth radii and weighs about 7,300 Earth masses.

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

How to see it

Like any astronomical target, HIP 78530 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 HIP 78530 b is an anomaly exoplanet

HIP 78530 b scores 79 points on Spacedle's rarity scale, which places it in the anomaly tier. Another 16 points would lift it into a rarer tier.

That score comes from 6 science badges — Confirmed exoplanet, Gas giant, Hot Jupiter, Ultra-hot Jupiter, Denser than iron 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.