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Anomaly exoplanet 79 EP

USco1556 b

RA 239.1037° · Dec -25.6890° · 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. ≈ 8.1 million years at Voyager 1's speed (17 km/s).
  • Fastest probe ever. ≈ 716.2 thousand years even at the Parker Solar Probe's 192 km/s.
  • At 10% light speed. ≈ 4587 years in a starship at a tenth of light speed.
  • Distance. 459 light-years from Earth.

Look-back time

  • Look-back time. The light you'd see left around the year 1567.

Saying hello

  • Say hello. A radio message and its reply would take 917 years round-trip.

By the numbers

  • Size. About 12.3× the width of Earth.
  • Volume. About 1861 Earths could fit inside it.
  • Mass. Roughly 4767× Earth's mass — about 15 Jupiters.
  • Your weight. You'd weigh about 31.5× your Earth weight standing here.
  • Density. Denser than solid iron.
  • Temperature. Around 2240 K — hot enough to vaporise iron.

How we found it

  • Discovery. Found by Multiple Observatories using the imaging method.

Properties

density gcc
14.1
discovery facility
Multiple Observatories
discovery method
Imaging
dist ly
458.6895
eq temp k
2240
insolation
0
mass earth
4767.45
name
USco1556 b
radius earth
12.3
sys num planets
1

About USco1556 b

USco1556 b is an anomaly exoplanet. It lies about 458.7 light-years from Earth, has an equilibrium temperature near 2,240 K, spans roughly 12.3 Earth radii and weighs about 4,767.45 Earth masses.

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

How to see it

Like any astronomical target, USco1556 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 USco1556 b is an anomaly exoplanet

USco1556 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.

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Sky imagery and survey data courtesy of Aladin Lite & CDS, Strasbourg. Object data from the NASA Exoplanet Archive, JPL Small-Body Database, and the ATNF Pulsar Catalogue.