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Dorsum Thera from Apollo 15 panoramic camera
Dorsum Thera is on the bottom left of the Lunar Orbiter 4 photo featuring other features in the area

Dorsum Thera is a wrinkle ridge at 24°24′N 31°24′W / 24.4°N 31.4°W / 24.4; -31.4 in Mare Imbrium on the Moon. It is approximately 7 km long. It was named in 1976 but was not named after a specific person, Thera being a common Greek feminine name.[1]

To the northeast are Courtney crater and Catena Yuri. To the southwest is Mons Vinogradov. The nearest prominent crater is Euler located to the south-southeast.


  1. ^ Dorsum Thera, Gazetteer of Planetary Nomenclature, International Astronomical Union (IAU) Working Group for Planetary System Nomenclature (WGPSN)