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Common exoplanet 19 EP

WASP-105 b

RA 24.1679° · Dec -50.6593° · exoplanet

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Score breakdown

· 3 badges
19 pts · Common
Common 22 pts → Uncommon
  • Tidally locked +10
  • Confirmed exoplanet +5
  • Gas giant +4
Total score 19

3 more points to reach Uncommon.

Badges

  • Confirmed exoplanet · +5
  • Gas giant · +4
  • 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 12 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 October — 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. ≈ 9.7 million years at Voyager 1's speed (17 km/s).

Properties

density gcc
2.65
diameter km
137264.876
discovery facility
SuperWASP-South
discovery method
Transit
discovery year
2017
dist ly
552.0908
eccentricity
0
eq temp k
900
host star teff
5070
inclination
89.7
insolation
166.5368
mag
12.049
mass earth
572.094
name
WASP-105 b
orbital period days
7.8729
radius earth
10.7606
semi major au
0.075
spect
K2
sys num planets
1
sys num stars
1
tidally locked
yes
tidally locked inferred
yes

About WASP-105 b

WASP-105 b is a common exoplanet. It lies about 552.1 light-years from Earth, shines at apparent magnitude 12.05, has spectral type K2 and has an equilibrium temperature near 900 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 12.05, it takes a larger telescope or a long-exposure image to capture.

Like any astronomical target, WASP-105 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 WASP-105 b is a common exoplanet

WASP-105 b scores 19 points on Spacedle's rarity scale, which places it in the common tier. Another 3 points would lift it into a rarer tier.

That score comes from 3 science badges — Confirmed exoplanet, Gas giant 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.