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Rare exoplanet 41 EP

OGLE-2018-BLG-1700L b

RA 269.9560° · Dec -28.5286° · exoplanet

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Score breakdown

· 5 badges
41 pts · Rare
Rare 50 pts → Epic
  • Circumbinary (orbits both stars) +14
  • Found by microlensing +12
  • Distant (over 1,000 light-years) +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
  • Circumbinary (orbits both stars) · +14
  • Found by microlensing · +12

Trivia

What it actually is

  • What it is made of. Its density says rock, though lighter than Earth's mix: probably less iron, or a thick shell of water and ice over the top.

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. ≈ 435.6 million years at Voyager 1's speed (17 km/s).
  • Fastest probe ever. ≈ 38.7 million years even at the Parker Solar Probe's 192 km/s.
  • At 10% light speed. ≈ 247.9 thousand years in a starship at a tenth of light speed.

Properties

circumbinary
yes
density gcc
3.58
diameter km
164554.98
discovery facility
OGLE
discovery method
Microlensing
discovery year
2020
dist ly
24787.856
mass earth
1400
name
OGLE-2018-BLG-1700L b
radius earth
12.9
semi major au
2.8
sys num planets
1
sys num stars
2

Nearby objects

About OGLE-2018-BLG-1700L b

OGLE-2018-BLG-1700L b is a rare exoplanet. It lies about 24,787.9 light-years from Earth, spans roughly 12.9 Earth radii, weighs about 1,400 Earth masses and belongs to a system of 1 known planets.

Its density says rock, though lighter than Earth's mix: probably less iron, or a thick shell of water and ice over the top.

How to see it

Like any astronomical target, OGLE-2018-BLG-1700L 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-2018-BLG-1700L b is a rare exoplanet

OGLE-2018-BLG-1700L 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 5 science badges — Confirmed exoplanet, Distant (over 1,000 light-years), Gas giant, Circumbinary (orbits both stars) 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.