Avalon Chasma (Mimas)
Data as of 2026-10-23
What it is
- Type
- Chasma, chasmata
- IAU definition
A deep, elongated, steep-sided depression
- Diameter
- 120 km, 61 % of the radius of its body
- Centre
- 35° N, 213° east (planetocentric latitude, east longitude from 0 to 360°, the IAU convention)
- Name adopted
- 1982
- Origin of the name
Arthurian paradise.
Quoted in English, as the IAU publishes it.
In Galaxy
Opens its body in the application, the camera turned towards Avalon Chasma.
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 Avalon Chasma.
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/500
Type definitions: IAU Descriptor Terms, read on October 17, 2026. https://planetarynames.wr.usgs.gov/DescriptorTerms