Viking Orbiter 1 image with Thira below center
|Diameter||21.84 km (13.57 mi)|
Thira is a crater on Mars. It is located within the larger crater Gusev. It measures approximately 21.84 kilometres (13.57 mi) in diameter and was named after the town of Fira on the island of Santorini in Greece.
- "Thira (crater)". Gazetteer of Planetary Nomenclature. USGS Astrogeology Research Program.
Original source: https://en.wikipedia.org/wiki/Thira (crater). Read more