Ganis Chasma (Venus)

Data as of 2026-10-23

What it is

Type
Chasma, chasmata
IAU definition

A deep, elongated, steep-sided depression

Diameter
3,700 km, 61 % of the radius of its body
Centre
18° N, 189° east (planetocentric latitude, east longitude from 0 to 360°, the IAU convention)
Name adopted
1982
Origin of the name

Western Lapp forest maiden.

Quoted in English, as the IAU publishes it.

In Galaxy

See it in Galaxy

Opens its body in the application, the camera turned towards Ganis Chasma.

Observed by

Instruments whose footprint touches this formation, counted by the PDS Orbital Data Explorer (data frozen on September 29, 2026). A footprint that touches it is not a study of it.

Observed by
Mission and instrumentProductsFirstLast
Magellan · Radar System976January 28, 1991June 2, 1992
ESA's Venus Express · Visible and Infrared Thermal Imaging Spectrometer1,499May 14, 2006May 13, 2014
MESSENGER at Venus · Mercury Dual Imaging System - Wide Angle Camera24June 5, 2007June 5, 2007

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/2099

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

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