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Rare exoplanet 42 EP

Kepler-238 e

RA 287.8971° · Dec 40.6378° · exoplanet

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Score breakdown

· 6 badges
42 pts · Rare
Rare 46 pts → Epic
  • Richly packed system +14
  • Distant (>1000 ly) +10
  • Multi-planet system +6
  • Confirmed exoplanet +5
  • Neptune-like +4
  • Found by Kepler +3
Total score 42

4 more points to reach Epic.

Badges

  • Confirmed exoplanet · +5
  • Neptune-like · +4
  • Multi-planet system · +6
  • Richly packed system · +14
  • Found by Kepler · +3
  • Distant (>1000 ly) · +10

Trivia

What makes it special

  • Packed system. Crammed into a system of five or more planets.

Could we get there?

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

Getting there

  • Aboard Voyager 1. ≈ 103.1 million years at Voyager 1's speed (17 km/s).
  • Fastest probe ever. ≈ 9.2 million years even at the Parker Solar Probe's 192 km/s.
  • At 10% light speed. ≈ 58.7 thousand years in a starship at a tenth of light speed.
  • Distance. 5867 light-years from Earth.

Look-back time

  • Look-back time. Its light left before the last ice age ended.

Saying hello

  • Say hello. A radio message and its reply would take 11.7 thousand years round-trip.

Standing on it

  • A year here. A full year lasts just 23.7 Earth days.

By the numbers

  • Size. About 5.6× the width of Earth.
  • Volume. About 176 Earths could fit inside it.
  • Mass. Roughly 170× Earth's mass — about 0.5 Jupiters.
  • Your weight. You'd weigh about 5.4× your Earth weight standing here.
  • Density. Less dense than water — drop it in a big enough ocean and it would float.
  • Temperature. Around 458°C — hotter than a self-cleaning oven.

How we found it

  • Discovery. Found by Kepler using the transit method.

Cosmic context

  • Crowded system. One of at least 5 planets orbiting its star.

Properties

density gcc
0.54
discovery facility
Kepler
discovery method
Transit
dist ly
5866.731
eccentricity
0
eq temp k
731
insolation
98.461
mass earth
169.7
name
Kepler-238 e
orbital period days
23.654
radius earth
5.6
sys num planets
5
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Sky imagery and survey data courtesy of Aladin Lite & CDS, Strasbourg. Object data from the NASA Exoplanet Archive, JPL Small-Body Database, and the ATNF Pulsar Catalogue.