Epic exoplanet 49 EP

KMT-2021-BLG-1770L b

RA 270.4400° · Dec -27.4187° · exoplanet

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Score breakdown

· 5 badges

49 pts · Epic

Epic 68 pts → Anomaly

Denser than iron +18
Found by microlensing +12
Distant (>1000 ly) +10
Confirmed exoplanet +5
Gas giant +4

Total score 49

19 more points to reach Anomaly.

Badges

Confirmed exoplanet · +5
Gas giant · +4
Denser than iron · +18
Found by microlensing · +12
Distant (>1000 ly) · +10

Trivia

What makes it special

Heavyweight. Packed denser than solid iron.

Could we get there?

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

Getting there

Aboard Voyager 1. ≈ 396.6 million years at Voyager 1's speed (17 km/s).
Fastest probe ever. ≈ 35.2 million years even at the Parker Solar Probe's 192 km/s.
At 10% light speed. ≈ 225.7 thousand years in a starship at a tenth of light speed.
Distance. 22.6 thousand light-years from Earth.

Look-back time

Look-back time. This light set out before Homo sapiens existed.

Saying hello

Say hello. A radio message and its reply would take 45.1 thousand years round-trip.

By the numbers

Size. About 12.1× the width of Earth.
Volume. About 1772 Earths could fit inside it.
Mass. Roughly 6674× Earth's mass — about 21 Jupiters.
Your weight. You'd weigh about 45.6× your Earth weight standing here.
Density. Denser than solid iron.

How we found it

Discovery. Found by KMTNet using the microlensing method.

Properties

density gcc: 20.7
discovery facility: KMTNet
discovery method: Microlensing
dist ly: 22569.9952
mass earth: 6674.3965
name: KMT-2021-BLG-1770L b
radius earth: 12.1
sys num planets: 1

About KMT-2021-BLG-1770L b

KMT-2021-BLG-1770L b is an epic exoplanet. It lies about 22,570 light-years from Earth, spans roughly 12.1 Earth radii, weighs about 6,674.4 Earth masses and belongs to a system of 1 known planets.

Packed denser than solid iron.

How to see it

Like any astronomical target, KMT-2021-BLG-1770L 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-1770L b is an epic exoplanet

KMT-2021-BLG-1770L b scores 49 points on Spacedle's rarity scale, which places it in the epic tier. Another 19 points would lift it into a rarer tier.

That score comes from 5 science badges — Confirmed exoplanet, Gas giant, Denser than iron, Found by microlensing and Distant (>1000 ly) — 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.