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Rare exoplanet 37 EP

UCAC4 328-061594 b

RA 152.6991° · Dec -24.4533° · exoplanet

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Score breakdown

· 4 badges
37 pts · Rare
Rare 50 pts → Epic
  • Directly imaged +16
  • Orbits beyond Neptune's distance +12
  • Confirmed exoplanet +5
  • Gas giant +4
Total score 37

13 more points to reach Epic.

Badges

  • Confirmed exoplanet · +5
  • Gas giant · +4
  • Directly imaged · +16
  • Orbits beyond Neptune's distance · +12

Trivia

Hard to believe

  • Denser than iron. It is packed tighter than solid iron — whatever it is made of, it is not ordinary rock.

What it actually is

  • What it is made of. Denser than Earth — a solid world of rock and iron, with no meaningful atmosphere to speak of by mass.

Sense of scale

  • In perspective. Far away by human standards, yet still a local address inside the Milky Way's spiral arms.

Find it in the sky

  • How to spot it. At magnitude 15.7 it is far too faint for the eye: this one belongs to cameras and long exposures.
  • Southern sky. It rides the southern half of the sky — an easier target the further south you are.
  • Best time of year. It stands highest in the middle of the night around February — that's when to go looking.

Could we get there?

  • Verdict. Hopelessly far for any craft humanity can build today.

Getting there

  • Aboard Voyager 1. ≈ 2.3 million years at Voyager 1's speed (17 km/s).

Properties

density gcc
20.7
diameter km
154350.02
discovery facility
Multiple Observatories
discovery method
Imaging
discovery year
2024
dist ly
130.1653
mag
15.689
mass earth
6674.3965
name
UCAC4 328-061594 b
radius earth
12.1
semi major au
19000
spect
DC
sys num planets
1
sys num stars
1

About UCAC4 328-061594 b

UCAC4 328-061594 b is a rare exoplanet. It lies about 130.2 light-years from Earth, shines at apparent magnitude 15.69, has spectral type DC and spans roughly 12.1 Earth radii.

Denser than Earth — a solid world of rock and iron, with no meaningful atmosphere to speak of by mass.

How to see it

At apparent magnitude 15.69, it takes a larger telescope or a long-exposure image to capture.

Like any astronomical target, UCAC4 328-061594 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 UCAC4 328-061594 b is a rare exoplanet

UCAC4 328-061594 b scores 37 points on Spacedle's rarity scale, which places it in the rare tier. Another 13 points would lift it into a rarer tier.

That score comes from 4 science badges — Confirmed exoplanet, Gas giant, Directly imaged and Orbits beyond Neptune's distance — 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.