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Common exoplanet 21 EP

OGLE-2017-BLG-1140L b

RA 266.8831° · Dec -24.5227° · exoplanet

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Score breakdown

· 3 badges
21 pts · Common
Common 22 pts → Uncommon
  • Found by microlensing +12
  • Confirmed exoplanet +5
  • Gas giant +4
Total score 21

1 more point to reach Uncommon.

Badges

  • Confirmed exoplanet · +5
  • Gas giant · +4
  • Found by microlensing · +12

Trivia

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.

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.

By the numbers

  • Size. About 13.5× the width of Earth.
  • Your weight. You'd weigh about 2.8× your Earth weight standing here.
  • Mass. Roughly 505× Earth's mass — about 1.6 Jupiters.
  • Volume. About 2460 Earths could fit inside it.

How we came to know it

  • A very new science. The first planet confirmed around a Sun-like star was found in 1995. Every exoplanet humanity knows of has been discovered inside a single lifetime.

Properties

density gcc
1.13
diameter km
172208.7
discovery facility
OGLE
discovery method
Microlensing
discovery year
2018
mass earth
505
name
OGLE-2017-BLG-1140L b
radius earth
13.5
semi major au
1.02
sys num planets
1
sys num stars
1

Nearby objects

About OGLE-2017-BLG-1140L b

OGLE-2017-BLG-1140L b is a common exoplanet. It spans roughly 13.5 Earth radii, weighs about 505 Earth masses and belongs to a system of 1 known planets.

Lighter than Neptune — a puffed-up ball of hydrogen and helium with no surface anywhere on it to stand on.

How to see it

Like any astronomical target, OGLE-2017-BLG-1140L 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-2017-BLG-1140L b is a common exoplanet

OGLE-2017-BLG-1140L b scores 21 points on Spacedle's rarity scale, which places it in the common tier. Another 1 point would lift it into a rarer tier.

That score comes from 3 science badges — Confirmed exoplanet, Gas giant 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.