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Rare exoplanet 36 EP

OGLE-2005-BLG-390L b

RA 268.5800° · Dec -30.3773° · exoplanet

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Score breakdown

· 5 badges
36 pts · Rare
Rare 50 pts → Epic
  • Found by microlensing +12
  • Frozen world +8
  • Distant (over 1,000 light-years) +6
  • Confirmed exoplanet +5
  • Sub-Neptune +5
Total score 36

14 more points to reach Epic.

Badges

  • Confirmed exoplanet · +5
  • Distant (over 1,000 light-years) · +6
  • Sub-Neptune · +5
  • Frozen world · +8
  • 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.

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

  • 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.

Getting there

  • Aboard Voyager 1. ≈ 378.3 million years at Voyager 1's speed (17 km/s).
  • Fastest probe ever. ≈ 33.6 million years even at the Parker Solar Probe's 192 km/s.

Properties

density gcc
2.8
diameter km
28191.202
discovery facility
OGLE
discovery method
Microlensing
discovery year
2005
dist ly
21526.296
eq temp k
50
mass earth
5.5
name
OGLE-2005-BLG-390L b
orbital period days
3285
radius earth
2.21
semi major au
2.6
sys num planets
1
sys num stars
1

Nearby objects

About OGLE-2005-BLG-390L b

OGLE-2005-BLG-390L b is a rare exoplanet. It lies about 21,526.3 light-years from Earth, has an equilibrium temperature near 50 K, spans roughly 2.21 Earth radii and weighs about 5.5 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-2005-BLG-390L 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-2005-BLG-390L b is a rare exoplanet

OGLE-2005-BLG-390L b scores 36 points on Spacedle's rarity scale, which places it in the rare tier. Another 14 points would lift it into a rarer tier.

That score comes from 5 science badges — Confirmed exoplanet, Distant (over 1,000 light-years), Sub-Neptune, Frozen world 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.