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Trash exoplanet 12 EP

Kepler-1737 b

RA 297.0148° · Dec 47.4864° · exoplanet

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Score breakdown

· 3 badges
12 pts · Trash
Trash 15 pts → Common
  • Confirmed exoplanet +5
  • Neptune-like +4
  • Found by Kepler +3
Total score 12

3 more points to reach Common.

Badges

  • Confirmed exoplanet · +5
  • Neptune-like · +4
  • Found by Kepler · +3

Trivia

Hard to believe

  • It would float. It is less dense than water. Drop it in a big enough ocean and the whole world would bob on the surface.

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. Lighter than Neptune — a puffed-up ball of hydrogen and helium with no surface anywhere on it to stand on.

Find it in the sky

  • How to spot it. At magnitude 15.5 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 64.6 Earth days.
  • Starlight here. It receives about 5.1 times as much starlight as Earth gets from the Sun.

Properties

density gcc
0.878
diameter km
68819.699
discovery facility
Kepler
discovery method
Transit
discovery year
2021
eccentricity
0
eq temp k
383
host star teff
5043
inclination
88.9
insolation
5.09
mag
15.498
mass earth
25.1
name
Kepler-1737 b
orbital period days
64.6175
radius earth
5.395
semi major au
0.297
sys num planets
1
sys num stars
1

About Kepler-1737 b

Kepler-1737 b is a trash exoplanet. It shines at apparent magnitude 15.5, has an equilibrium temperature near 383 K, spans roughly 5.39 Earth radii and weighs about 25.1 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 15.5, it takes a larger telescope or a long-exposure image to capture.

Like any astronomical target, Kepler-1737 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-1737 b is a trash exoplanet

Kepler-1737 b scores 12 points on Spacedle's rarity scale, which places it in the trash tier. Another 3 points would lift it into a rarer tier.

That score comes from 3 science badges — Confirmed exoplanet, Neptune-like and Found by Kepler — 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.