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Rare exoplanet 41 EP

OGLE-2006-BLG-109L b

RA 268.1438° · Dec -30.0878° · exoplanet

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Score breakdown

· 6 badges
41 pts · Rare
Rare 50 pts → Epic
  • Found by microlensing +12
  • Frozen world +8
  • Distant (over 1,000 light-years) +6
  • Multi-planet system +6
  • Confirmed exoplanet +5
  • Gas giant +4
Total score 41

9 more points to reach Epic.

Badges

  • Confirmed exoplanet · +5
  • Distant (over 1,000 light-years) · +6
  • Gas giant · +4
  • Frozen world · +8
  • Multi-planet system · +6
  • Found by microlensing · +12

Trivia

What makes it special

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

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

  • 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 2 planets orbiting its star.

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

  • Southern sky. It rides the southern half of the sky — an easier target the further south you are.
  • Best time of year. It stands highest in the middle of the night around June — that's when to go looking.

Could we get there?

  • Verdict. Impossible with our current technology — and the next millennium of it.

Properties

density gcc
0.463
diameter km
178586.8
discovery facility
OGLE
discovery method
Microlensing
discovery year
2008
dist ly
4924.9556
eq temp k
82
mass earth
231
name
OGLE-2006-BLG-109L b
orbital period days
1788.5
radius earth
14
semi major au
2.3
sys num planets
2
sys num stars
1

Nearby objects

About OGLE-2006-BLG-109L b

OGLE-2006-BLG-109L b is a rare exoplanet. It lies about 4,925 light-years from Earth, has an equilibrium temperature near 82 K, spans roughly 14 Earth radii and weighs about 231 Earth masses.

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

How to see it

Like any astronomical target, OGLE-2006-BLG-109L 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 OGLE-2006-BLG-109L b is a rare exoplanet

OGLE-2006-BLG-109L b scores 41 points on Spacedle's rarity scale, which places it in the rare tier. Another 9 points would lift it into a rarer tier.

That score comes from 6 science badges — Confirmed exoplanet, Distant (over 1,000 light-years), Gas giant, Frozen world, Multi-planet system and Found by microlensing — 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.