[citation needed] Offset to the west of the crater's midpoint is its central peak, designated Alpha (α) Albategnius.
[citation needed] Albategnius is located to the south of the crater Hipparchus and to the east of both Ptolemaeus and Alphonsus.
The surface in this area is marked by a set of nearly parallel scars that form channels running roughly in a north–south line, bent slightly to the southeast.
[citation needed] Albategnius is believed to have been featured prominently in an early sketch drawing by Galileo in his book Sidereus Nuncius (1610), appearing along the lunar terminator.
[5] By convention these features are identified on lunar maps by placing the letter on the side of the crater midpoint that is closest to Albategnius.