← Back to dex
Anomaly exoplanet 88 EP

VHS J125601.92-125723.9 b

RA 194.0090° · Dec -12.9560° · exoplanet

Loading sky survey…
🌌 View in 3D star map
Tonight’s visibility

Computing the sky for your location…

Score breakdown

· 9 badges
88 pts · Anomaly
Anomaly 120 pts → Mythic
  • Directly imaged +16
  • Circumbinary (orbits both stars) +14
  • Orbits beyond Neptune's distance +12
  • Hot Jupiter +10
  • Long-period world +10
  • Eccentric orbit +9
  • Orbits a red dwarf +8
  • Confirmed exoplanet +5
  • Gas giant +4
Total score 88

32 more points to reach Mythic.

Badges

  • Confirmed exoplanet · +5
  • Gas giant · +4
  • Hot Jupiter · +10
  • Long-period world · +10
  • Eccentric orbit · +9
  • Circumbinary (orbits both stars) · +14
  • Directly imaged · +16
  • Orbits a red dwarf · +8
  • 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. Inside our stellar backyard: every radio broadcast humanity has ever made has already swept past it.

Find it in the sky

  • How to spot it. At magnitude 17.7 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 April — 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. ≈ 727.9 thousand years at Voyager 1's speed (17 km/s).

Properties

circumbinary
yes
density gcc
10.9
diameter km
174440.4795
discovery facility
Paranal Observatory
discovery method
Imaging
discovery year
2015
dist ly
41.4218
eccentricity
0.68
eq temp k
1194
host star teff
2620
inclination
24
insolation
0
mag
17.73
mass earth
5085.2545
name
VHS J125601.92-125723.9 b
orbital period days
5800000
radius earth
13.675
semi major au
350
spect
M7.5
sys num planets
1
sys num stars
2

About VHS J125601.92-125723.9 b

VHS J125601.92-125723.9 b is an anomaly exoplanet. It lies about 41.4 light-years from Earth, shines at apparent magnitude 17.73, has spectral type M7.5 and has an equilibrium temperature near 1,194 K.

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 17.73, it takes a larger telescope or a long-exposure image to capture.

Like any astronomical target, VHS J125601.92-125723.9 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 VHS J125601.92-125723.9 b is an anomaly exoplanet

VHS J125601.92-125723.9 b scores 88 points on Spacedle's rarity scale, which places it in the anomaly tier. Another 32 points would lift it into a rarer tier.

That score comes from 9 science badges — Confirmed exoplanet, Gas giant, Hot Jupiter, Long-period world, Eccentric orbit, Circumbinary (orbits both stars), Directly imaged and Orbits a red dwarf — 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.