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Uncommon exoplanet 33 EP

omi UMa b

RA 127.5650° · Dec 60.7177° · exoplanet

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Score breakdown

· 4 badges
33 pts · Uncommon
Uncommon 34 pts → Rare
  • Its star is visible to the naked eye +12
  • Two suns in its sky +12
  • Confirmed exoplanet +5
  • Gas giant +4
Total score 33

1 more point to reach Rare.

Badges

  • Confirmed exoplanet · +5
  • Gas giant · +4
  • Its star is visible to the naked eye · +12
  • 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 3.4 you can see it with your own eyes from a dark site.
  • Never sets. So far north that from Britain, Canada or northern Europe it never dips below the horizon — it is up every clear night of the year.
  • Best time of year. It stands highest in the middle of the night around January — 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. ≈ 3.1 million years at Voyager 1's speed (17 km/s).
  • Fastest probe ever. ≈ 279.7 thousand years even at the Parker Solar Probe's 192 km/s.

Properties

density gcc
2.9
diameter km
165830.6
discovery facility
Okayama Astrophysical Observatory
discovery method
Radial Velocity
discovery year
2012
dist ly
179.1082
eccentricity
0.149
eq temp k
473.88
host star teff
5075
insolation
8.4795
mag
3.3521
mass earth
1160.3915
multi star system
yes
name
omi UMa b
orbital period days
1569.81
radius earth
13
semi major au
3.691
spect
G4 II-III
sys num planets
1
sys num stars
2

About omi UMa b

omi UMa b is an uncommon exoplanet. It lies about 179.1 light-years from Earth, shines at apparent magnitude 3.35, has spectral type G4 II-III and has an equilibrium temperature near 474 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 3.35, it can be glimpsed with the unaided eye under dark skies.

Like any astronomical target, omi UMa 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 omi UMa b is an uncommon exoplanet

omi UMa b scores 33 points on Spacedle's rarity scale, which places it in the uncommon tier. Another 1 point would lift it into a rarer tier.

That score comes from 4 science badges — Confirmed exoplanet, Gas giant, Its star is visible to the naked eye 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.