Palisa Regio

Last updated

Palisa Regio
Feature type Regio
Location 243 Ida
Coordinates 23°00′S34°00′E / 23.00°S 34.00°E / -23.00; 34.00 [1]
Diameter23 km (14 mi)
Naming1997
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′S34°00′E / 23.00°S 34.00°E / -23.00; 34.00 , [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

  1. 1 2 3 4 "Palisa Regio". Gazetteer of Planetary Nomenclature. USGS Astrogeology Research Program. Retrieved 2 January 2026. (Center Latitude: -23.00°, Center Longitude: 34.00°; Planetographic, +East)
  2. ↑ Gillispie, Charles Coulston, ed. (1981). Dictionary of Scientific Biography. Vol. 9. New York: Charles Scribner's Sons.
  3. ↑ "Ida". We Name The Stars. Retrieved 12 December 2025.
  4. ↑ "GeoHack - Palisa". geohack.toolforge.org. Retrieved 12 December 2025.
  5. ↑ "1997LPI....28.1385S Page 1385". adsabs.harvard.edu. Retrieved 12 December 2025.


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