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Epic exoplanet 57 EP

HD 106270 b

RA 183.4049° · Dec -9.5136° · exoplanet

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Score breakdown

· 4 badges
57 pts · Epic
Epic 68 pts → Anomaly
  • In the habitable zone +30
  • Denser than iron +18
  • Confirmed exoplanet +5
  • Gas giant +4
Total score 57

11 more points to reach Anomaly.

Badges

  • Confirmed exoplanet · +5
  • In the habitable zone · +30
  • Gas giant · +4
  • Denser than iron · +18

Trivia

What makes it special

  • Goldilocks zone. Sits where it's neither too hot nor too cold — liquid water could exist.
  • 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. ≈ 5.4 million years at Voyager 1's speed (17 km/s).
  • Fastest probe ever. ≈ 477.7 thousand years even at the Parker Solar Probe's 192 km/s.
  • At 10% light speed. ≈ 3060 years in a starship at a tenth of light speed.
  • Distance. 306 light-years from Earth.

Look-back time

  • Look-back time. The light you'd see left around the year 1720.

Saying hello

  • Say hello. A radio message and its reply would take 612 years round-trip.

Standing on it

  • A year here. A full year lasts about 5.2 Earth years.

By the numbers

  • Size. About 12.4× the width of Earth.
  • Volume. About 1907 Earths could fit inside it.
  • Mass. Roughly 3623× Earth's mass — about 11.4 Jupiters.
  • Your weight. You'd weigh about 23.6× your Earth weight standing here.
  • Density. Denser than solid iron.
  • Temperature. A frigid -36°C — colder than dry ice.

How we found it

  • Discovery. Found by W. M. Keck Observatory using the radial velocity method.

Properties

density gcc
10.4
discovery facility
W. M. Keck Observatory
discovery method
Radial Velocity
dist ly
305.9604
eccentricity
0.185
eq temp k
237.07
habitable zone
yes
insolation
0.511
mass earth
3623.2438
name
HD 106270 b
orbital period days
1888
radius earth
12.4
sys num planets
1

About HD 106270 b

HD 106270 b is an epic exoplanet. It lies about 306 light-years from Earth, has an equilibrium temperature near 237 K, spans roughly 12.4 Earth radii and weighs about 3,623.24 Earth masses.

Sits where it's neither too hot nor too cold — liquid water could exist.

How to see it

Like any astronomical target, HD 106270 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 106270 b is an epic exoplanet

HD 106270 b scores 57 points on Spacedle's rarity scale, which places it in the epic tier. Another 11 points would lift it into a rarer tier.

That score comes from 4 science badges — Confirmed exoplanet, In the habitable zone, Gas giant and Denser than iron — 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.