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EarthNeptuneJupiterMOA-2011-BLG-322L b
Diagram, not a photograph. Sizes to scale; distance from the star on a logarithmic scale, worked out from the orbital period and the star’s mass. The planet’s colour shows its equilibrium temperature (not measured), not its real colour. Source: NASA Exoplanet Archive.

Confirmed exoplanet · Database record + computed analysis

MOA-2011-BLG-322L b

A confirmed world orbiting MOA-2011-BLG-322L, 24,657.4 light-years away.

24,657.4 light-years (7,560.0 pc) Discovered 2013 · Microlensing

A gas giant

12.40 Earth radii, Jupiter-class (Jupiter is 11.2). With 3690.0 Earth masses packed into that size, its density points to rock and iron rather than gas.

How far is that, really?

At 24,657 light-years, tonight's light from this system left it around the year -22631. A Voyager-speed probe would need roughly 436,253,714 years to get there.

How we found it

It was found by gravitational microlensing: the star (and planet) drifted in front of a farther star, and their gravity briefly magnified the background light in a telltale pattern. Such alignments never repeat, so each detection is a one-time event. The discovery was announced in 2013 from MOA.

Everything above is computed from the archive’s measured values for this planet. Where a quantity is missing, the statement is omitted rather than guessed.

About this record

The measured values come from the NASA Exoplanet Archive, and any missing value has not been determined yet; the Atlas never fills gaps with guesses. More standout worlds: Proxima b, TRAPPIST-1e, K2-18 b, 55 Cancri e, and the detection methods that found them all.