Anomaly exoplanet 77 EP

HIP 21152 b

RA 68.0205° · Dec 5.4101° · exoplanet

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Score breakdown

· 7 badges

77 pts · Anomaly

Anomaly 95 pts → Mythic

Denser than iron +18
Directly imaged +16
Lava world +14
Hot Jupiter +10
Long-period world +10
Confirmed exoplanet +5
Gas giant +4

Total score 77

18 more points to reach Mythic.

Badges

Confirmed exoplanet · +5
Gas giant · +4
Hot Jupiter · +10
Lava world · +14
Long-period world · +10
Denser than iron · +18
Directly imaged · +16

Trivia

What makes it special

Lava world. Its surface is likely an ocean of molten rock.
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. ≈ 2.5 million years at Voyager 1's speed (17 km/s).
Fastest probe ever. ≈ 221.1 thousand years even at the Parker Solar Probe's 192 km/s.
At 10% light speed. ≈ 1416 years in a starship at a tenth of light speed.
Distance. 142 light-years from Earth.

Look-back time

Look-back time. The light you'd see left around the year 1884.

Saying hello

Say hello. A radio message and its reply would take 283 years round-trip.

Standing on it

A year here. A full year lasts about 60.2 Earth years.

By the numbers

Size. About 12× the width of Earth.
Volume. About 1728 Earths could fit inside it.
Mass. Roughly 7628× Earth's mass — about 24 Jupiters.
Your weight. You'd weigh about 53.0× your Earth weight standing here.
Density. Denser than solid iron.
Temperature. Around 1027°C — hotter than a self-cleaning oven.

How we found it

Discovery. Found by Multiple Observatories using the imaging method.

Properties

density gcc: 24.3
discovery facility: Multiple Observatories
discovery method: Imaging
dist ly: 141.5755
eccentricity: 0.36
eq temp k: 1300
insolation: 0.015
mass earth: 7627.8818
name: HIP 21152 b
orbital period days: 22000
radius earth: 12
sys num planets: 1

About HIP 21152 b

HIP 21152 b is an anomaly exoplanet. It lies about 141.6 light-years from Earth, has an equilibrium temperature near 1,300 K, spans roughly 12 Earth radii and weighs about 7,627.88 Earth masses.

Its surface is likely an ocean of molten rock.

How to see it

Like any astronomical target, HIP 21152 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 21152 b is an anomaly exoplanet

HIP 21152 b scores 77 points on Spacedle's rarity scale, which places it in the anomaly tier. Another 18 points would lift it into a rarer tier.

That score comes from 7 science badges — Confirmed exoplanet, Gas giant, Hot Jupiter, Lava world, Long-period world, 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.