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Epic exoplanet 47 EP

PSR J1719-1438 b

RA 259.7920° · Dec -14.6336° · exoplanet

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Score breakdown

· 4 badges
47 pts · Epic
Epic 68 pts → Anomaly
  • Denser than iron +18
  • Ultra-short period +14
  • Distant (>1000 ly) +10
  • Confirmed exoplanet +5
Total score 47

21 more points to reach Anomaly.

Badges

  • Confirmed exoplanet · +5
  • Ultra-short period · +14
  • Denser than iron · +18
  • Distant (>1000 ly) · +10

Trivia

What makes it special

  • Heavyweight. Packed denser than solid iron.

Could we get there?

  • Verdict. Impossible with our current technology — and the next millennium of it.

Getting there

  • Aboard Voyager 1. ≈ 68.8 million years at Voyager 1's speed (17 km/s).
  • Fastest probe ever. ≈ 6.1 million years even at the Parker Solar Probe's 192 km/s.
  • At 10% light speed. ≈ 39.1 thousand years in a starship at a tenth of light speed.
  • Distance. 3914 light-years from Earth.

Look-back time

  • Look-back time. Its light left before the last ice age ended.

Saying hello

  • Say hello. A radio message and its reply would take 7828 years round-trip.

Standing on it

  • A year here. A full year lasts just 0.1 Earth days.

By the numbers

  • Mass. Roughly 383× Earth's mass — about 1.2 Jupiters.
  • Density. Denser than solid iron.

How we found it

  • Discovery. Found by Parkes Observatory using the pulsar timing method.

Properties

density gcc
23
discovery facility
Parkes Observatory
discovery method
Pulsar Timing
dist ly
3913.872
eccentricity
0.06
mass earth
382.8
name
PSR J1719-1438 b
orbital period days
0.0907
sys num planets
1

About PSR J1719-1438 b

PSR J1719-1438 b is an epic exoplanet. It lies about 3,913.9 light-years from Earth, weighs about 382.8 Earth masses, completes an orbit every 0.09 days and belongs to a system of 1 known planets.

Packed denser than solid iron.

How to see it

Like any astronomical target, PSR J1719-1438 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 PSR J1719-1438 b is an epic exoplanet

PSR J1719-1438 b scores 47 points on Spacedle's rarity scale, which places it in the epic tier. Another 21 points would lift it into a rarer tier.

That score comes from 4 science badges — Confirmed exoplanet, Ultra-short period, Denser than iron and Distant (>1000 ly) — 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.