Safronov Regio (Pluto)

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
740 km, 62 % of the radius of its body
Centre
13.36° S, 209.49° east (planetocentric latitude, east longitude from 0 to 360°, the IAU convention)
Name adopted
September 22, 2023
Origin of the name

Viktor; Russian astronomer who proposed the planetesimal hypothesis for how the Solar System formed from a disk of gas and dust around the Sun (1917-1999).

Quoted in English, as the IAU publishes it.

In Galaxy

See it in Galaxy

Opens its body in the application, the camera turned towards Safronov 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 Safronov 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/16258

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

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