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Rare exoplanet 39 EP

KMT-2021-BLG-0322L b

RA 270.9117° · Dec -29.6044° · exoplanet

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Score breakdown

· 5 badges
39 pts · Rare
Rare 50 pts → Epic
  • Found by microlensing +12
  • Two suns in its sky +12
  • Distant (over 1,000 light-years) +6
  • Confirmed exoplanet +5
  • Gas giant +4
Total score 39

11 more points to reach Epic.

Badges

  • Confirmed exoplanet · +5
  • Distant (over 1,000 light-years) · +6
  • Gas giant · +4
  • Found by microlensing · +12
  • Two suns in its sky · +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. ≈ 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.
  • At 10% light speed. ≈ 215.3 thousand years in a starship at a tenth of light speed.

Properties

density gcc
5.46
diameter km
162003.74
discovery facility
KMTNet
discovery method
Microlensing
discovery year
2021
dist ly
21526.296
mass earth
2034.1018
multi star system
yes
name
KMT-2021-BLG-0322L b
radius earth
12.7
sys num planets
1
sys num stars
2

Nearby objects

About KMT-2021-BLG-0322L b

KMT-2021-BLG-0322L b is a rare exoplanet. It lies about 21,526.3 light-years from Earth, spans roughly 12.7 Earth radii, weighs about 2,034.1 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, KMT-2021-BLG-0322L 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 KMT-2021-BLG-0322L b is a rare exoplanet

KMT-2021-BLG-0322L b scores 39 points on Spacedle's rarity scale, which places it in the rare tier. Another 11 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, Found by microlensing 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.