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Uncommon exoplanet 30 EP

HD 108341 b

RA 186.8792° · Dec -71.4225° · exoplanet

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Score breakdown

· 4 badges
30 pts · Uncommon
Uncommon 34 pts → Rare
  • Two suns in its sky +12
  • Eccentric orbit +9
  • Confirmed exoplanet +5
  • Gas giant +4
Total score 30

4 more points to reach Rare.

Badges

  • Confirmed exoplanet · +5
  • Gas giant · +4
  • Eccentric orbit · +9
  • Two suns in its sky · +12

Trivia

What it actually is

  • 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.

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 9.4 you'll want a small backyard telescope.
  • Southern sky only. So far south it never rises for most of the northern hemisphere. To see it you'd have to travel to Chile, South Africa or Australia.
  • Best time of year. It stands highest in the middle of the night around March — that's when to go looking.

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.

Properties

density gcc
1.67
diameter km
169657.46
discovery facility
La Silla Observatory
discovery method
Radial Velocity
discovery year
2014
dist ly
159.5236
eccentricity
0.85
eq temp k
155.23
host star teff
5122
inclination
65
insolation
0.1066
mag
9.38
mass earth
715.1139
multi star system
yes
name
HD 108341 b
orbital period days
1129
radius earth
13.3
semi major au
2
spect
K2 V
sys num planets
1
sys num stars
2

About HD 108341 b

HD 108341 b is an uncommon exoplanet. It lies about 159.5 light-years from Earth, shines at apparent magnitude 9.38, has spectral type K2 V and has an equilibrium temperature near 155 K.

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.

How to see it

At apparent magnitude 9.38, a small backyard telescope will bring it into view.

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 an uncommon exoplanet

HD 108341 b scores 30 points on Spacedle's rarity scale, which places it in the uncommon tier. Another 4 points would lift it into a rarer tier.

That score comes from 4 science badges — Confirmed exoplanet, Gas giant, Eccentric orbit and Two suns in its sky — 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.