← Back to dex
Common exoplanet 15 EP

TOI-756 c

RA 192.1037° · Dec -45.4705° · exoplanet

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

Computing the sky for your location…

Score breakdown

· 3 badges
15 pts · Common
Common 22 pts → Uncommon
  • Multi-planet system +6
  • Confirmed exoplanet +5
  • Gas giant +4
Total score 15

7 more points to reach Uncommon.

Badges

  • Confirmed exoplanet · +5
  • Gas giant · +4
  • Multi-planet system · +6

Trivia

What it actually is

  • 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.
  • Crowded system. One of at least 2 planets orbiting its star.

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 14.6 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. ≈ 4.9 million years at Voyager 1's speed (17 km/s).

Properties

density gcc
3.22
diameter km
165830.6
discovery facility
La Silla Observatory
discovery method
Radial Velocity
discovery year
2025
dist ly
281.0679
eccentricity
0.445
eq temp k
194
host star teff
3657
insolation
0.24
mag
14.607
mass earth
1287.205
name
TOI-756 c
orbital period days
149.4
radius earth
13
semi major au
0.439
spect
M1 V
sys num planets
2
sys num stars
1

About TOI-756 c

TOI-756 c is a common exoplanet. It lies about 281.1 light-years from Earth, shines at apparent magnitude 14.61, has spectral type M1 V and has an equilibrium temperature near 194 K.

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

How to see it

At apparent magnitude 14.61, it takes a larger telescope or a long-exposure image to capture.

Like any astronomical target, TOI-756 c 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 TOI-756 c is a common exoplanet

TOI-756 c scores 15 points on Spacedle's rarity scale, which places it in the common tier. Another 7 points would lift it into a rarer tier.

That score comes from 3 science badges — Confirmed exoplanet, Gas giant and Multi-planet system — 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.