- For people with this name, see Pontanus .
is a lunar crater
that is located in the southern highlands
of the Moon
's near side. It lies approximately mid-way between the craters Sacrobosco
to the north-northeast and Gemma Frisius
to the south-southwest. It is 58 kilometers in diameter and 2,120 meters deep.Autostar Suite Astronomer Edition
. CD-ROM. Meade, April 2006.
The rim of this crater has been heavily worn by subsequent impacts, leaving a roughly circular, uneven slope about the interior. There is an outward protrusion in the rim to the south. The rim and inner wall to the north is less prominent, and is incised along the inner edge. The satellite crater Pontanus V is attached to the west-southwestern side. The interior floor is relatively uneven, particularly in the northern half, but is not marked by any significant craters.
The crater is named after the 15th-century Italian poet Giovanni Pontano
By convention these features are identified on lunar maps by placing the letter on the side of the crater mid-point that is closest to Pontanus.