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Epic exoplanet 77 EP

kap And b

RA 355.1026° · Dec 44.3339° · exoplanet

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Score breakdown

· 7 badges
77 pts · Epic
Epic 78 pts → Anomaly
  • Directly imaged +16
  • Lava world +14
  • Orbits a hot blue-white star +14
  • Its star is visible to the naked eye +12
  • Orbits beyond Neptune's distance +12
  • Confirmed exoplanet +5
  • Gas giant +4
Total score 77

1 more point to reach Anomaly.

Badges

  • Confirmed exoplanet · +5
  • Gas giant · +4
  • Lava world · +14
  • Directly imaged · +16
  • Its star is visible to the naked eye · +12
  • Orbits a hot blue-white star · +14
  • Orbits beyond Neptune's distance · +12

Trivia

What makes it special

  • Lava world. Its surface is almost certainly an ocean of molten rock, kept liquid by the star it hugs.

What it actually is

  • What it is made of. Denser than Earth — a solid world of rock and iron, with no meaningful atmosphere to speak of by mass.

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 4.1 you can see it with your own eyes from a dark site.
  • 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 September — 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. ≈ 2.9 million years at Voyager 1's speed (17 km/s).

Properties

density gcc
7.49
diameter km
203037.2794
discovery facility
Subaru Telescope
discovery method
Imaging
discovery year
2012
dist ly
163.1357
eq temp k
1791
host star teff
11327
insolation
0.0207
mag
4.1379
mass earth
5498.4314
name
kap And b
radius earth
15.9168
semi major au
55
spect
B9 IVn
sys num planets
1
sys num stars
1

About kap And b

kap And b is an epic exoplanet. It lies about 163.1 light-years from Earth, shines at apparent magnitude 4.14, has spectral type B9 IVn and has an equilibrium temperature near 1,791 K.

Its surface is almost certainly an ocean of molten rock, kept liquid by the star it hugs.

How to see it

At apparent magnitude 4.14, it can be glimpsed with the unaided eye under dark skies.

Like any astronomical target, kap And 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 kap And b is an epic exoplanet

kap And b scores 77 points on Spacedle's rarity scale, which places it in the epic tier. Another 1 point would lift it into a rarer tier.

That score comes from 7 science badges — Confirmed exoplanet, Gas giant, Lava world, Directly imaged, Its star is visible to the naked eye, Orbits a hot blue-white star and Orbits beyond Neptune's distance — 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.