Palisa Regio
| Feature type | Regio |
|---|---|
| Location | 243 Ida |
| Coordinates | 23°00′S 34°00′E / 23.00°S 34.00°E[1] |
| Diameter | 23 km (14 mi) |
| Naming | 1997 |
| Eponym | Johann Palisa, an Austrian astronomer |
Palisa Regio is a regio, or a large area with distinct color or albedo, on 243 Ida, a main-belt asteroid. The crater was named after Johann Palisa, an Austrian astronomer, who discovered 243 Ida.[2][3] The name "Palisa Regio" was officially approved by the International Astronomical Union (IAU) in 1997.[1]
Geology and characteristics
Located at 23°00′S 34°00′E / 23.00°S 34.00°E,[1][4] Palisa Regio has a diameter of 23 kilometres (14 mi).[1] It is slightly concave and some astronomers suggest that it might be a highly degraded ancient crater.[5]
References
- ^ a b c d "Palisa Regio". Gazetteer of Planetary Nomenclature. USGS Astrogeology Research Program. Retrieved 2 January 2026. (Center Latitude: -23.00°, Center Longitude: 34.00°; Planetographic, +East)
- ^ Gillispie, Charles Coulston, ed. (1981). Dictionary of Scientific Biography. Vol. 9. New York: Charles Scribner's Sons.
- ^ "Ida". We Name The Stars. Retrieved 12 December 2025.
- ^ "GeoHack - Palisa". geohack.toolforge.org. Retrieved 12 December 2025.
- ^ "1997LPI....28.1385S Page 1385". adsabs.harvard.edu. Retrieved 12 December 2025.