Tyrrhena Dorsa (Mars)
Data as of 2026-10-23
What it is
- Type
- Dorsum, dorsa
- IAU definition
Ridge
- Diameter
- 779.4 km, 23 % of the radius of its body
- Centre
- 24.2° S, 115.72° east (planetocentric latitude, east longitude from 0 to 360°, the IAU convention)
- Name adopted
- 1991
- Origin of the name
Albedo feature name.
Quoted in English, as the IAU publishes it.
In Galaxy
Opens its body in the application, the camera turned towards Tyrrhena 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 |
|---|---|---|---|
| Mars Global Surveyor · Mars Orbiter Laser Altimeter | 434 | September 15, 1997 | June 30, 2001 |
| Mars Global Surveyor · Mars Orbiter Camera | 11,866 | November 21, 1997 | October 16, 2006 |
| 2001 Mars Odyssey Orbiter · Thermal Emission Imaging System | 11,470 | March 22, 2002 | November 26, 2025 |
| ESA's Mars Express · Planetary Fourier Spectrometer | 1,014 | April 6, 2004 | December 14, 2018 |
| ESA's Mars Express · High Resolution Stereo Camera | 412 | April 23, 2004 | March 2, 2026 |
| ESA's Mars Express · Observatoire Mineralogie, Eau, Glaces, Activite | 316 | April 23, 2004 | November 1, 2023 |
| ESA's Mars Express · Mars Advanced Radar for Subsurface and Ionsphere Sounding | 2,331 | July 5, 2005 | April 23, 2022 |
| Mars Reconnaissance Orbiter · Compact Reconnaissance Imaging Spectrometer for Mars | 14,129 | October 4, 2006 | May 3, 2022 |
| Mars Reconnaissance Orbiter · Context Camera | 532 | October 4, 2006 | May 18, 2026 |
| Mars Reconnaissance Orbiter · High-Resolution Imaging Science Experiment | 437 | October 4, 2006 | June 30, 2026 |
| Mars Reconnaissance Orbiter · Shallow Radar | 1,037 | February 27, 2007 | April 19, 2025 |
| ExoMars Trace Gas Orbiter · Colour and Stereo Surface Imaging System | 557 | August 21, 2018 | December 13, 2024 |
| Viking Orbiter 1 and 2 · Visual Imaging Subsystem Camera A/B | 573 | no date published | no date published |
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/6171
Type definitions: IAU Descriptor Terms, read on October 17, 2026. https://planetarynames.wr.usgs.gov/DescriptorTerms