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Rare exoplanet 39 EP

WISPIT 1 c

RA 117.7986° · Dec -50.1377° · exoplanet

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Score breakdown

· 5 badges
39 pts · Rare
Rare 46 pts → Epic
  • Directly imaged +16
  • Frozen world +8
  • Multi-planet system +6
  • Confirmed exoplanet +5
  • Gas giant +4
Total score 39

7 more points to reach Epic.

Badges

  • Confirmed exoplanet · +5
  • Gas giant · +4
  • Frozen world · +8
  • Multi-planet system · +6
  • Directly imaged · +16

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. ≈ 13.2 million years at Voyager 1's speed (17 km/s).
  • Fastest probe ever. ≈ 1.2 million years even at the Parker Solar Probe's 192 km/s.
  • At 10% light speed. ≈ 7502 years in a starship at a tenth of light speed.
  • Distance. 750 light-years from Earth.

Look-back time

  • Look-back time. The light you'd see left around the year 1276.

Saying hello

  • Say hello. A radio message and its reply would take 1500 years round-trip.

By the numbers

  • Size. About 12.8× the width of Earth.
  • Volume. About 2097 Earths could fit inside it.
  • Mass. Roughly 1684× Earth's mass — about 5.3 Jupiters.
  • Your weight. You'd weigh about 10.3× your Earth weight standing here.
  • Temperature. A frigid -265°C — colder than dry ice.

How we found it

  • Discovery. Found by Paranal Observatory using the imaging method.

Cosmic context

  • Crowded system. One of at least 2 planets orbiting its star.

Properties

density gcc
4.41
discovery facility
Paranal Observatory
discovery method
Imaging
dist ly
750.1816
eq temp k
8.21
insolation
0
mass earth
1684.4906
name
WISPIT 1 c
radius earth
12.8
sys num planets
2

About WISPIT 1 c

WISPIT 1 c is a rare exoplanet. It lies about 750.2 light-years from Earth, has an equilibrium temperature near 8 K, spans roughly 12.8 Earth radii and weighs about 1,684.49 Earth masses.

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

How to see it

Like any astronomical target, WISPIT 1 c 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 WISPIT 1 c is a rare exoplanet

WISPIT 1 c scores 39 points on Spacedle's rarity scale, which places it in the rare tier. Another 7 points would lift it into a rarer tier.

That score comes from 5 science badges — Confirmed exoplanet, Gas giant, Frozen world, Multi-planet system 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.