Thetis Regio (Venus)
Data as of 2026-10-23
What it is
- Type
- Regio, regiones
- IAU definition
A large area marked by reflectivity or color distinctions from adjacent areas, or a broad geographic region
- Diameter
- 2,801 km, 46 % of the radius of its body
- Centre
- 11.4° S, 129.9° east (planetocentric latitude, east longitude from 0 to 360°, the IAU convention)
- Name adopted
- 1982
- Origin of the name
Greek Titaness.
Quoted in English, as the IAU publishes it.
In Galaxy
Opens its body in the application, the camera turned towards Thetis Regio.
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 | 1,038 | December 20, 1990 | May 9, 1992 |
| ESA's Venus Express · Visible and Infrared Thermal Imaging Spectrometer | 2,822 | May 15, 2006 | August 11, 2014 |
| MESSENGER at Venus · MERCURY ATMOSPHERIC AND SURFACE COMPOSITION SPECTROMETER | 5 | June 5, 2007 | June 6, 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/5970
Type definitions: IAU Descriptor Terms, read on October 17, 2026. https://planetarynames.wr.usgs.gov/DescriptorTerms