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Epic exoplanet 63 EP

ups And d

RA 24.1984° · Dec 41.4038° · exoplanet

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Score breakdown

· 5 badges
63 pts · Epic
Epic 68 pts → Anomaly
  • In the habitable zone +30
  • Denser than iron +18
  • Multi-planet system +6
  • Confirmed exoplanet +5
  • Gas giant +4
Total score 63

5 more points to reach Anomaly.

Badges

  • Confirmed exoplanet · +5
  • In the habitable zone · +30
  • Gas giant · +4
  • Denser than iron · +18
  • Multi-planet system · +6

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. ≈ 768.3 thousand years at Voyager 1's speed (17 km/s).
  • Fastest probe ever. ≈ 68.3 thousand years even at the Parker Solar Probe's 192 km/s.
  • At 10% light speed. ≈ 437 years in a starship at a tenth of light speed.
  • Distance. 43.7 light-years from Earth.

Look-back time

  • Look-back time. The light you'd see left around the year 1982.

Saying hello

  • Say hello. A radio message and its reply would take 87.4 years round-trip.

Standing on it

  • A year here. A full year lasts about 3.5 Earth years.

By the numbers

  • Size. About 12.5× the width of Earth.
  • Volume. About 1953 Earths could fit inside it.
  • Mass. Roughly 3258× Earth's mass — about 10.3 Jupiters.
  • Your weight. You'd weigh about 20.8× your Earth weight standing here.
  • Density. Denser than solid iron.
  • Temperature. A frigid -39°C — colder than dry ice.

How we found it

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

Cosmic context

  • Crowded system. One of at least 3 planets orbiting its star.

Properties

density gcc
9.17
discovery facility
Multiple Observatories
discovery method
Radial Velocity
dist ly
43.7225
eccentricity
0.2987
eq temp k
233.9
habitable zone
yes
insolation
0.5308
mass earth
3257.7412
name
ups And d
orbital period days
1276.46
radius earth
12.5
sys num planets
3

About ups And d

ups And d is an epic exoplanet. It lies about 43.7 light-years from Earth, has an equilibrium temperature near 234 K, spans roughly 12.5 Earth radii and weighs about 3,257.74 Earth masses.

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

How to see it

Like any astronomical target, ups And d 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 ups And d is an epic exoplanet

ups And d scores 63 points on Spacedle's rarity scale, which places it in the epic tier. Another 5 points would lift it into a rarer tier.

That score comes from 5 science badges — Confirmed exoplanet, In the habitable zone, Gas giant, Denser than iron and Multi-planet system — 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.