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Common exoplanet 19 EP

Kepler-1533 b

RA 295.9756° · Dec 44.7134° · exoplanet

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Score breakdown

· 4 badges
19 pts · Common
Common 22 pts → Uncommon
  • Distant (over 1,000 light-years) +6
  • Confirmed exoplanet +5
  • Sub-Neptune +5
  • Found by Kepler +3
Total score 19

3 more points to reach Uncommon.

Badges

  • Confirmed exoplanet · +5
  • Distant (over 1,000 light-years) · +6
  • Sub-Neptune · +5
  • Found by Kepler · +3

Trivia

What it actually is

  • 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.

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 13.3 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.

Could we get there?

  • Verdict. Impossible with our current technology — and the next millennium of it.

Getting there

  • Aboard Voyager 1. ≈ 55.4 million years at Voyager 1's speed (17 km/s).
  • Fastest probe ever. ≈ 4.9 million years even at the Parker Solar Probe's 192 km/s.

Properties

density gcc
1.57
diameter km
44136.452
discovery facility
Kepler
discovery method
Transit
discovery year
2016
dist ly
3153.2795
eccentricity
0
eq temp k
330
host star teff
6431
inclination
89.99
insolation
4.786
mag
13.289
mass earth
11.8
name
Kepler-1533 b
orbital period days
308.5471
radius earth
3.46
semi major au
0.9342
sys num planets
1
sys num stars
1

About Kepler-1533 b

Kepler-1533 b is a common exoplanet. It lies about 3,153.3 light-years from Earth, shines at apparent magnitude 13.29, has an equilibrium temperature near 330 K and spans roughly 3.46 Earth radii.

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

How to see it

At apparent magnitude 13.29, it takes a larger telescope or a long-exposure image to capture.

Like any astronomical target, Kepler-1533 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-1533 b is a common exoplanet

Kepler-1533 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 4 science badges — Confirmed exoplanet, Distant (over 1,000 light-years), Sub-Neptune 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.