Palisa Regio is a geological feature located on the main-belt asteroid 243 Ida. [1]
It is categorized as a "regio" (a large area with distinct color or albedo), [1] Palisa Regio has a diameter of 23 kilometers. It is slightly concave, some scientists suggest it might be a highly degraded ancient crater., [2] It's coordinates are 23°S 34°W. [3]
Idaean regiones (geologically distinct areas) are supposed to be named after the discoverer of the asteroid, and the places where he worked. Palisa Regio is named after Johann Palisa, the discoverer of 243 Ida [4]