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Uncommon exoplanet 27 EP

HD 11112 b

RA 27.0881° · Dec -41.4944° · exoplanet

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Score breakdown

· 4 badges
27 pts · Uncommon
Uncommon 33 pts → Rare
  • Long-period world +10
  • Frozen world +8
  • Confirmed exoplanet +5
  • Gas giant +4
Total score 27

6 more points to reach Rare.

Badges

  • Confirmed exoplanet · +5
  • Gas giant · +4
  • Frozen world · +8
  • Long-period world · +10

Trivia

What makes it special

  • Frozen world. A deep-frozen world far from its star's warmth.

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. ≈ 226 thousand years even at the Parker Solar Probe's 192 km/s.
  • At 10% light speed. ≈ 1447 years in a starship at a tenth of light speed.
  • Distance. 145 light-years from Earth.

Look-back time

  • Look-back time. The light you'd see left around the year 1881.

Saying hello

  • Say hello. A radio message and its reply would take 289 years round-trip.

Standing on it

  • A year here. A full year lasts about 47.2 Earth years.

By the numbers

  • Size. About 12.6× the width of Earth.
  • Volume. About 2000 Earths could fit inside it.
  • Mass. Roughly 2599× Earth's mass — about 8.2 Jupiters.
  • Your weight. You'd weigh about 16.4× your Earth weight standing here.
  • Temperature. A frigid -179°C — colder than dry ice.

How we found it

  • Discovery. Found by Multiple Observatories using the radial velocity method.

Properties

density gcc
7.14
discovery facility
Multiple Observatories
discovery method
Radial Velocity
dist ly
144.7493
eccentricity
0.285
eq temp k
94.51
insolation
0.0133
mass earth
2598.5651
name
HD 11112 b
orbital period days
17244.9076
radius earth
12.6
sys num planets
1

About HD 11112 b

HD 11112 b is an uncommon exoplanet. It lies about 144.7 light-years from Earth, has an equilibrium temperature near 95 K, spans roughly 12.6 Earth radii and weighs about 2,598.57 Earth masses.

A deep-frozen world far from its star's warmth.

How to see it

Like any astronomical target, HD 11112 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 11112 b is an uncommon exoplanet

HD 11112 b scores 27 points on Spacedle's rarity scale, which places it in the uncommon tier. Another 6 points would lift it into a rarer tier.

That score comes from 4 science badges — Confirmed exoplanet, Gas giant, Frozen world and Long-period world — 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.

spacedle A daily roll through the real universe. © 2026 spacedle. Buy me a coffee

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.