Annwn Regio (Europa)

Data as of 2026-10-23

What it is

Type
Regio, regiones
IAU definition

A large area marked by reflectivity or color distinctions from adjacent areas, or a broad geographic region

Diameter
2,300 km, 147 % of the radius of its body
Centre
20° N, 40° east (planetocentric latitude, east longitude from 0 to 360°, the IAU convention)
Name adopted
May 11, 2007
Origin of the name

Traditional name of the Welsh Otherworld where sparkling wine is the normal beverage, and age and sickness are unknown.

Quoted in English, as the IAU publishes it.

In Galaxy

See it in Galaxy

Opens its body in the application, the camera turned towards Annwn Regio.

Missions to its body

No observation record of this formation is crossed here. These are the missions the Planetary Data System declares for its body; none is claimed to have observed Annwn Regio.

Sources

International Astronomical Union Working Group for Planetary System Nomenclature, Gazetteer of Planetary Nomenclature, read on October 23, 2026. Feature page: https://planetarynames.wr.usgs.gov/Feature/14291

Type definitions: IAU Descriptor Terms, read on October 17, 2026. https://planetarynames.wr.usgs.gov/DescriptorTerms

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