← Back to dex
Rare exoplanet 45 EP

Gl 725 A b

RA 280.6834° · Dec 59.6381° · exoplanet

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

Computing the sky for your location…

Score breakdown

· 5 badges
45 pts · Rare
Rare 50 pts → Epic
  • Nearby (<25 ly) +12
  • Two suns in its sky +12
  • Super-Earth +8
  • Orbits a red dwarf +8
  • Confirmed exoplanet +5
Total score 45

5 more points to reach Epic.

Badges

  • Confirmed exoplanet · +5
  • Nearby (<25 ly) · +12
  • Super-Earth · +8
  • Orbits a red dwarf · +8
  • Two suns in its sky · +12

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. Its density says rock, though lighter than Earth's mix: probably less iron, or a thick shell of water and ice over the top.

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 8.9 it is just past naked-eye reach — ordinary binoculars will pull it in.
  • Northern sky. It rides the northern half of the sky — an easier target the further north you are.
  • Best time of year. It stands highest in the middle of the night around July — that's when to go looking.

Could we get there?

  • Verdict. A multi-generation starship could one day attempt the crossing.

Getting there

  • Aboard Voyager 1. ≈ 201.8 thousand years at Voyager 1's speed (17 km/s).

Properties

density gcc
4.71
diameter km
18879.176
discovery facility
Multiple Observatories
discovery method
Radial Velocity
discovery year
2025
dist ly
11.4853
eccentricity
0
eq temp k
376.1
host star teff
3433
insolation
3.3572
mag
8.94
mass earth
2.78
multi star system
yes
name
Gl 725 A b
orbital period days
11.2201
radius earth
1.48
semi major au
0.068
spect
M3
sys num planets
1
sys num stars
2

About Gl 725 A b

Gl 725 A b is a rare exoplanet. It lies about 11.5 light-years from Earth, shines at apparent magnitude 8.94, has spectral type M3 and has an equilibrium temperature near 376 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 8.94, it is an easy target for binoculars.

Like any astronomical target, Gl 725 A 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 Gl 725 A b is a rare exoplanet

Gl 725 A b scores 45 points on Spacedle's rarity scale, which places it in the rare tier. Another 5 points would lift it into a rarer tier.

That score comes from 5 science badges — Confirmed exoplanet, Nearby (<25 ly), Super-Earth, Orbits a red dwarf and Two suns in its sky — 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.