← Back to dex
Common exoplanet 20 EP

Wolf 503 b

RA 206.8462° · Dec -6.1393° · exoplanet

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

Computing the sky for your location…

Score breakdown

· 3 badges
20 pts · Common
Common 22 pts → Uncommon
  • Tidally locked +10
  • Confirmed exoplanet +5
  • Sub-Neptune +5
Total score 20

2 more points to reach Uncommon.

Badges

  • Confirmed exoplanet · +5
  • Sub-Neptune · +5
  • Tidally locked · +10

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. Too light to be solid rock and too heavy to be all gas: most likely a deep global ocean or a thick steamy envelope over a rocky core.

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 10.3 you'll want a small backyard telescope.
  • Seen from everywhere. It sits almost on the celestial equator, so it can be seen from essentially anywhere on Earth.
  • 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. ≈ 2.6 million years at Voyager 1's speed (17 km/s).

Properties

density gcc
2.92
diameter km
26060.9166
discovery facility
K2
discovery method
Transit
discovery year
2018
dist ly
145.2242
eccentricity
0.41
eq temp k
790
host star teff
4716
inclination
89.87
insolation
69.6
mag
10.27
mass earth
6.26
name
Wolf 503 b
orbital period days
6.0013
radius earth
2.043
semi major au
0.0571
spect
K3.5 V
sys num planets
1
sys num stars
1
tidally locked
yes
tidally locked inferred
yes

About Wolf 503 b

Wolf 503 b is a common exoplanet. It lies about 145.2 light-years from Earth, shines at apparent magnitude 10.27, has spectral type K3.5 V and has an equilibrium temperature near 790 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 10.27, a small backyard telescope will bring it into view.

Like any astronomical target, Wolf 503 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 Wolf 503 b is a common exoplanet

Wolf 503 b scores 20 points on Spacedle's rarity scale, which places it in the common tier. Another 2 points would lift it into a rarer tier.

That score comes from 3 science badges — Confirmed exoplanet, Sub-Neptune and Tidally locked — 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.