← Back to dex
Rare exoplanet 39 EP

HD 136352 b

RA 230.4401° · Dec -48.3188° · exoplanet

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

Computing the sky for your location…

Score breakdown

· 5 badges
39 pts · Rare
Rare 50 pts → Epic
  • Its star is visible to the naked eye +12
  • Super-Earth +8
  • Orbits a Sun-like star +8
  • Multi-planet system +6
  • Confirmed exoplanet +5
Total score 39

11 more points to reach Epic.

Badges

  • Confirmed exoplanet · +5
  • Super-Earth · +8
  • Multi-planet system · +6
  • Its star is visible to the naked eye · +12
  • Orbits a Sun-like star · +8

Trivia

What it actually is

  • Hugging its star. It orbits closer to its star than Mercury does to the Sun, completing a lap in less time than Mercury takes.
  • What it is made of. Denser than Earth — a solid world of rock and iron, with no meaningful atmosphere to speak of by mass.
  • Crowded system. One of at least 3 planets orbiting its star.

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 5.7 you can see it with your own eyes from a dark site.
  • 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 May — that's when to go looking.

Could we get there?

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

Properties

density gcc
5.6239
diameter km
21226.3168
discovery facility
La Silla Observatory
discovery method
Radial Velocity
discovery year
2019
dist ly
47.8862
eccentricity
0
eq temp k
905
host star teff
5664
inclination
88.49
insolation
111.6
mag
5.65
mass earth
4.72
name
HD 136352 b
orbital period days
11.578
radius earth
1.664
semi major au
0.0964
spect
G4 V
sys num planets
3
sys num stars
1

About HD 136352 b

HD 136352 b is a rare exoplanet. It lies about 47.9 light-years from Earth, shines at apparent magnitude 5.65, has spectral type G4 V and has an equilibrium temperature near 905 K.

It orbits closer to its star than Mercury does to the Sun, completing a lap in less time than Mercury takes.

How to see it

At apparent magnitude 5.65, it can be glimpsed with the unaided eye under dark skies.

Like any astronomical target, HD 136352 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 HD 136352 b is a rare exoplanet

HD 136352 b scores 39 points on Spacedle's rarity scale, which places it in the rare tier. Another 11 points would lift it into a rarer tier.

That score comes from 5 science badges — Confirmed exoplanet, Super-Earth, Multi-planet system, Its star is visible to the naked eye and Orbits a Sun-like star — 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.