Anomaly exoplanet 79 EP

HIP 77900 b

RA 238.6254° · Dec -27.3387° · 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. ≈ 8.6 million years at Voyager 1's speed (17 km/s).
Fastest probe ever. ≈ 768.3 thousand years even at the Parker Solar Probe's 192 km/s.
At 10% light speed. ≈ 4920 years in a starship at a tenth of light speed.
Distance. 492 light-years from Earth.

Look-back time

Look-back time. The light you'd see left around the year 1534.

Saying hello

Say hello. A radio message and its reply would take 984 years round-trip.

By the numbers

Size. About 12.1× the width of Earth.
Volume. About 1772 Earths could fit inside it.
Mass. Roughly 6674× Earth's mass — about 21 Jupiters.
Your weight. You'd weigh about 45.6× your Earth weight standing here.
Density. Denser than solid iron.
Temperature. Around 2507 K — hot enough to vaporise iron.

How we found it

Discovery. Found by European Space Agency (ESA) Gaia Satellite using the imaging method.

Properties

density gcc: 20.7
discovery facility: European Space Agency (ESA) Gaia Satellite
discovery method: Imaging
dist ly: 492.0455
eq temp k: 2507
mass earth: 6674.3965
name: HIP 77900 b
radius earth: 12.1
sys num planets: 1

About HIP 77900 b

HIP 77900 b is an anomaly exoplanet. It lies about 492 light-years from Earth, has an equilibrium temperature near 2,507 K, spans roughly 12.1 Earth radii and weighs about 6,674.4 Earth masses.

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

How to see it

Like any astronomical target, HIP 77900 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 77900 b is an anomaly exoplanet

HIP 77900 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.