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Uncommon exoplanet 31 EP

Kepler-1985 b

RA 293.5664° · Dec 42.1326° · exoplanet

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Score breakdown

· 5 badges
31 pts · Uncommon
Uncommon 34 pts → Rare
  • Tidally locked +10
  • Orbits a Sun-like star +8
  • Confirmed exoplanet +5
  • Sub-Neptune +5
  • Found by Kepler +3
Total score 31

3 more points to reach Rare.

Badges

  • Confirmed exoplanet · +5
  • Sub-Neptune · +5
  • Tidally locked · +10
  • Found by Kepler · +3
  • Orbits a Sun-like star · +8

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.

Find it in the sky

  • How to spot it. At magnitude 15.2 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 July — that's when to go looking.

Standing on it

  • A year here. A full year lasts just 3.4 Earth days.
  • Eternal day. One side bakes in endless daylight while the other freezes in permanent night, with a ring of perpetual twilight in between.
  • Starlight here. It receives about 383 times as much starlight as Earth gets from the Sun.

Properties

density gcc
2.71
diameter km
28956.574
discovery facility
Kepler
discovery method
Transit
discovery year
2023
eccentricity
0
eq temp k
1129
host star teff
5370
inclination
82.03
insolation
382.68
mag
15.223
mass earth
5.77
name
Kepler-1985 b
orbital period days
3.4206
radius earth
2.27
semi major au
0.0426
sys num planets
1
sys num stars
1
tidally locked
yes
tidally locked inferred
yes

About Kepler-1985 b

Kepler-1985 b is an uncommon exoplanet. It shines at apparent magnitude 15.22, has an equilibrium temperature near 1,129 K, spans roughly 2.27 Earth radii and weighs about 5.77 Earth masses.

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 15.22, it takes a larger telescope or a long-exposure image to capture.

Like any astronomical target, Kepler-1985 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 Kepler-1985 b is an uncommon exoplanet

Kepler-1985 b scores 31 points on Spacedle's rarity scale, which places it in the uncommon tier. Another 3 points would lift it into a rarer tier.

That score comes from 5 science badges — Confirmed exoplanet, Sub-Neptune, Tidally locked, Found by Kepler and Orbits a Sun-like star — 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.