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Common exoplanet 18 EP

HD 108341 b

RA 186.8792° · Dec -71.4225° · exoplanet

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Score breakdown

· 3 badges
18 pts · Common
Common 24 pts → Uncommon
  • Eccentric orbit +9
  • Confirmed exoplanet +5
  • Gas giant +4
Total score 18

6 more points to reach Uncommon.

Badges

  • Confirmed exoplanet · +5
  • Gas giant · +4
  • Eccentric orbit · +9

Trivia

Could we get there?

  • Verdict. Hopelessly far for any craft humanity can build today.

Getting there

  • Aboard Voyager 1. ≈ 2.8 million years at Voyager 1's speed (17 km/s).
  • Fastest probe ever. ≈ 249.1 thousand years even at the Parker Solar Probe's 192 km/s.
  • At 10% light speed. ≈ 1595 years in a starship at a tenth of light speed.
  • Distance. 160 light-years from Earth.

Look-back time

  • Look-back time. The light you'd see left around the year 1866.

Saying hello

  • Say hello. A radio message and its reply would take 319 years round-trip.

Standing on it

  • A year here. A full year lasts about 3.1 Earth years.

By the numbers

  • Size. About 13.3× the width of Earth.
  • Volume. About 2353 Earths could fit inside it.
  • Mass. Roughly 715× Earth's mass — about 2.3 Jupiters.
  • Your weight. You'd weigh about 4.0× your Earth weight standing here.
  • Temperature. A frigid -118°C — colder than dry ice.

How we found it

  • Discovery. Found by La Silla Observatory using the radial velocity method.

Cosmic context

  • Wild orbit. Its highly elliptical path swings between scorching and frozen each lap.

Properties

density gcc
1.67
discovery facility
La Silla Observatory
discovery method
Radial Velocity
dist ly
159.5236
eccentricity
0.85
eq temp k
155.23
insolation
0.1066
mass earth
715.1139
name
HD 108341 b
orbital period days
1129
radius earth
13.3
sys num planets
1

About HD 108341 b

HD 108341 b is a common exoplanet. It lies about 159.5 light-years from Earth, has an equilibrium temperature near 155 K, spans roughly 13.3 Earth radii and weighs about 715.11 Earth masses.

Its highly elliptical path swings between scorching and frozen each lap.

How to see it

Like any astronomical target, HD 108341 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 HD 108341 b is a common exoplanet

HD 108341 b scores 18 points on Spacedle's rarity scale, which places it in the common tier. Another 6 points would lift it into a rarer tier.

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

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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.