Geological Chronicle
Positioned on the lunar far side behind the visible eastern limb, Vernadskiy is an impact crater measuring 91.97 kilometers in diameter within the Mare Moscoviense quadrangle. The formation lies to the west-northwest of the smaller crater Siedentopf, north of Gavrilov, and east of the more distant Meggers.
Lesser impacts have degraded the crater, producing an eroded and irregular edge along the perimeter. The equally worn crater Florensky is attached to the northeastern outer rim, linked to the former satellite designation Vernadskiy B. Inside, the floor is marked by smaller impacts but remains generally more level than the surrounding uneven terrain.
In 1970, the International Astronomical Union officially adopted the spelling Vernadskiy to honor Soviet mineralogist Vladimir Vernadsky. Other historical sources record variant transliterations of the name, including Vernadskyy, Vernadskij, and Vernadsky.