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Anomaly exoplanet 81 EP

ups And b

RA 24.1984° · Dec 41.4038° · exoplanet

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Score breakdown

· 8 badges
81 pts · Anomaly
Anomaly 120 pts → Mythic
  • Found before the year 2000 +18
  • Lava world +14
  • Its star is visible to the naked eye +12
  • Two suns in its sky +12
  • Tidally locked +10
  • Multi-planet system +6
  • Confirmed exoplanet +5
  • Gas giant +4
Total score 81

39 more points to reach Mythic.

Badges

  • Confirmed exoplanet · +5
  • Gas giant · +4
  • Lava world · +14
  • Tidally locked · +10
  • Multi-planet system · +6
  • Its star is visible to the naked eye · +12
  • Two suns in its sky · +12
  • Found before the year 2000 · +18

Trivia

What makes it special

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

Hard to believe

  • It would float. It is less dense than water. Drop it in a big enough ocean and the whole world would bob on the surface.

What it actually is

  • Hugging its star. It orbits closer to its star than Mercury does to the Sun, completing a lap in less time than Mercury takes.
  • What it is made of. Lighter than Neptune — a puffed-up ball of hydrogen and helium with no surface anywhere on it to stand on.
  • Crowded system. One of at least 3 planets orbiting its star.

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 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.

Properties

density gcc
0.438
diameter km
178586.8
discovery facility
Lick Observatory
discovery method
Radial Velocity
discovery year
1996
dist ly
43.7225
eccentricity
0.0215
eq temp k
1523.73
host star teff
6156.77
insolation
955.9835
mag
4.0957
mass earth
218.531
multi star system
yes
name
ups And b
orbital period days
4.617
radius earth
14
semi major au
0.0592
spect
F8 V
sys num planets
3
sys num stars
2
tidally locked
yes
tidally locked inferred
yes

About ups And b

ups And b is an anomaly exoplanet. It lies about 43.7 light-years from Earth, shines at apparent magnitude 4.1, has spectral type F8 V and has an equilibrium temperature near 1,524 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 4.1, it can be glimpsed with the unaided eye under dark skies.

Like any astronomical target, ups 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 ups And b is an anomaly exoplanet

ups And b scores 81 points on Spacedle's rarity scale, which places it in the anomaly tier. Another 39 points would lift it into a rarer tier.

That score comes from 8 science badges — Confirmed exoplanet, Gas giant, Lava world, Tidally locked, Multi-planet system, Its star is visible to the naked eye, Two suns in its sky and Found before the year 2000 — 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.