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Rare exoplanet 39 EP

Wolf 327 b

RA 148.3783° · Dec 35.5705° · exoplanet

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Score breakdown

· 4 badges
39 pts · Rare
Rare 50 pts → Epic
  • Earth-sized +16
  • Ultra-short period +14
  • Confirmed exoplanet +5
  • Found by TESS +4
Total score 39

11 more points to reach Epic.

Badges

  • Confirmed exoplanet · +5
  • Earth-sized · +16
  • Ultra-short period · +14
  • Found by TESS · +4

Trivia

What makes it special

  • Earth-sized. Genuinely comparable to Earth in size. Worlds in this narrow band are the ones every next-generation telescope is being pointed at.

Hard to believe

  • A year in a day. Its entire year is over in 13.8 hours. Birthdays here would come round faster than meals.

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.

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 13 it is far too faint for the eye: this one belongs to cameras and long exposures.
  • 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 February — that's when to go looking.

Properties

density gcc
7.24
diameter km
15817.688
discovery facility
Transiting Exoplanet Survey Satellite (TESS)
discovery method
Transit
discovery year
2024
dist ly
93.0592
eccentricity
0
eq temp k
996
host star teff
3542
inclination
84.89
insolation
233.9
mag
13.018
mass earth
2.53
name
Wolf 327 b
orbital period days
0.5735
radius earth
1.24
semi major au
0.01
spect
M2.5 V
sys num planets
1
sys num stars
1
tidally locked
yes
tidally locked inferred
yes

About Wolf 327 b

Wolf 327 b is a rare exoplanet. It lies about 93.1 light-years from Earth, shines at apparent magnitude 13.02, has spectral type M2.5 V and has an equilibrium temperature near 996 K.

Genuinely comparable to Earth in size. Worlds in this narrow band are the ones every next-generation telescope is being pointed at.

How to see it

At apparent magnitude 13.02, it takes a larger telescope or a long-exposure image to capture.

Like any astronomical target, Wolf 327 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 327 b is a rare exoplanet

Wolf 327 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 4 science badges — Confirmed exoplanet, Earth-sized, Ultra-short period and Found by TESS — 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.