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Uncommon exoplanet 26 EP

HD 87883 b

RA 152.1794° · Dec 34.2420° · exoplanet

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Score breakdown

· 4 badges
26 pts · Uncommon
Uncommon 34 pts → Rare
  • Eccentric orbit +9
  • Frozen world +8
  • Confirmed exoplanet +5
  • Gas giant +4
Total score 26

8 more points to reach Rare.

Badges

  • Confirmed exoplanet · +5
  • Gas giant · +4
  • Frozen world · +8
  • Eccentric orbit · +9

Trivia

What makes it special

  • Frozen world. A deep-frozen world, too far from its star's warmth for anything to stay liquid.

What it actually is

  • What it is made of. Its density says rock, though lighter than Earth's mix: probably less iron, or a thick shell of water and ice over the top.

Sense of scale

  • In perspective. Inside our stellar backyard: every radio broadcast humanity has ever made has already swept past it.

Find it in the sky

  • How to spot it. At magnitude 7.6 it is just past naked-eye reach — ordinary binoculars will pull it in.
  • 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 February — 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. ≈ 1 million years at Voyager 1's speed (17 km/s).

Properties

density gcc
5.38
diameter km
162003.74
discovery facility
Lick Observatory
discovery method
Radial Velocity
discovery year
2009
dist ly
59.6578
eccentricity
0.72
eq temp k
110.52
host star teff
4980
inclination
16.8
insolation
0.0238
mag
7.56
mass earth
2005.4972
name
HD 87883 b
orbital period days
3006
radius earth
12.7
semi major au
3.77
spect
K0
sys num planets
1
sys num stars
1

About HD 87883 b

HD 87883 b is an uncommon exoplanet. It lies about 59.7 light-years from Earth, shines at apparent magnitude 7.56, has spectral type K0 and has an equilibrium temperature near 111 K.

A deep-frozen world, too far from its star's warmth for anything to stay liquid.

How to see it

At apparent magnitude 7.56, it is an easy target for binoculars.

Like any astronomical target, HD 87883 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 87883 b is an uncommon exoplanet

HD 87883 b scores 26 points on Spacedle's rarity scale, which places it in the uncommon tier. Another 8 points would lift it into a rarer tier.

That score comes from 4 science badges — Confirmed exoplanet, Gas giant, Frozen world 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.