Cyane Fossae (Mars)
Data as of 2026-10-23
What it is
- Type
- Fossa, fossae
- IAU definition
Long, narrow depression
- Diameter
- 913.2 km, 27 % of the radius of its body
- Centre
- 31.25° N, 238.83° east (planetocentric latitude, east longitude from 0 to 360°, the IAU convention)
- Name adopted
- 1985
- Origin of the name
Classical albedo feature name.
Quoted in English, as the IAU publishes it.
In Galaxy
Opens its body in the application, the camera turned towards Cyane Fossae.
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 | 484 | September 15, 1997 | June 30, 2001 |
| Mars Global Surveyor · Mars Orbiter Camera | 13,937 | October 20, 1997 | October 17, 2006 |
| 2001 Mars Odyssey Orbiter · Thermal Emission Imaging System | 16,509 | March 9, 2002 | November 26, 2025 |
| ESA's Mars Express · Observatoire Mineralogie, Eau, Glaces, Activite | 542 | April 14, 2004 | January 10, 2024 |
| ESA's Mars Express · Planetary Fourier Spectrometer | 1,412 | May 12, 2004 | December 18, 2018 |
| ESA's Mars Express · High Resolution Stereo Camera | 727 | August 18, 2004 | March 8, 2026 |
| ESA's Mars Express · Mars Advanced Radar for Subsurface and Ionsphere Sounding | 2,654 | July 6, 2005 | February 27, 2022 |
| Mars Reconnaissance Orbiter · Compact Reconnaissance Imaging Spectrometer for Mars | 14,966 | September 29, 2006 | April 22, 2022 |
| Mars Reconnaissance Orbiter · Context Camera | 646 | November 9, 2006 | April 16, 2026 |
| Mars Reconnaissance Orbiter · Shallow Radar | 2,393 | December 10, 2006 | December 21, 2025 |
| Mars Reconnaissance Orbiter · High-Resolution Imaging Science Experiment | 390 | April 16, 2007 | June 1, 2026 |
| ExoMars Trace Gas Orbiter · Colour and Stereo Surface Imaging System | 580 | September 4, 2018 | December 13, 2024 |
| Viking Orbiter 1 and 2 · Visual Imaging Subsystem Camera A/B | 513 | 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/1358
Type definitions: IAU Descriptor Terms, read on October 17, 2026. https://planetarynames.wr.usgs.gov/DescriptorTerms