Ulfrun 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
- 3,954 km, 65 % of the radius of its body
- Centre
- 27° N, 225° east (planetocentric latitude, east longitude from 0 to 360°, the IAU convention)
- Name adopted
- 1982
- Origin of the name
Norse giantess.
Quoted in English, as the IAU publishes it.
In Galaxy
Opens its body in the application, the camera turned towards Ulfrun 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 | 835 | February 20, 1991 | March 23, 1991 |
| ESA's Venus Express · Visible and Infrared Thermal Imaging Spectrometer | 1,093 | May 14, 2006 | May 13, 2014 |
| MESSENGER at Venus · Mercury Dual Imaging System - Wide Angle Camera | 392 | June 5, 2007 | June 5, 2007 |
| MESSENGER at Venus · Mercury Dual Imaging System - Narrow Angle Camera | 27 | June 5, 2007 | June 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/6198
Type definitions: IAU Descriptor Terms, read on October 17, 2026. https://planetarynames.wr.usgs.gov/DescriptorTerms