Etain Dorsa (Venus)
Data as of 2026-10-23
What it is
- Type
- Dorsum, dorsa
- IAU definition
Ridge
- Diameter
- 1,400 km, 23 % of the radius of its body
- Centre
- 45° S, 199° east (planetocentric latitude, east longitude from 0 to 360°, the IAU convention)
- Name adopted
- 1997
- Origin of the name
Irish sun and horse goddess.
Quoted in English, as the IAU publishes it.
In Galaxy
Opens its body in the application, the camera turned towards Etain Dorsa.
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.
| Mission and instrument | Products | First | Last |
|---|---|---|---|
| Magellan · Radar System | 539 | February 3, 1991 | October 25, 1991 |
| ESA's Venus Express · Visible and Infrared Thermal Imaging Spectrometer | 6,382 | May 15, 2006 | May 14, 2014 |
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/1855
Type definitions: IAU Descriptor Terms, read on October 17, 2026. https://planetarynames.wr.usgs.gov/DescriptorTerms