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List of geological features on Ida and Dactyl

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This is a list of named geological features on asteroid 243 Ida and its moon, Dactyl.

Ida

Regiones

Idaean regiones (geologically distinct areas) are named after the discoverer of the asteroid, and the places where he worked.

Regio Coordinates Diameter (km) Approval Date Named After Ref
Palisa Regio 23°S 34°W / 23°S 34°W / -23; -34 (Palisa) 23 1997 Johann Palisa WGPSN
Pola Regio 11°S 184°W / 11°S 184°W / -11; -184 (Pola) 8 1997 Pola, Croatia WGPSN
Vienna Regio 8°N 2°W / 8°N 2°W / 8; -2 (Vienna) 13 1997 Vienna WGPSN

Dorsa

Dorsum Coordinates Diameter (km) Approval Date Named After Ref
Townsend Dorsum 25°N 30°W / 25°N 30°W / 25; -30 (Townsend) 40 1997 Tim E. Townsend, a member of the Galileo probe imaging team WGPSN

Craters

Idaean craters are named after famous caves.

Crater Coordinates Diameter (km) Approval Date Named After Ref
Afon 6°30′S 0°00′E / 6.5°S -0°E / -6.5; -0 (Afon) 0.8 1994 Novy Afon Cave, Abkhazia WGPSN
Atea 5°42′S 18°54′W / 5.7°S 18.9°W / -5.7; -18.9 (Atea) 2 1997 Atea Cave, Papua New Guinea WGPSN
Azzurra 30°30′N 217°12′W / 30.5°N 217.2°W / 30.5; -217.2 (Azzurra) 9.6 1997 Azzurra Grotto, Italy WGPSN
Bilemot 27°48′S 29°12′W / 27.8°S 29.2°W / -27.8; -29.2 (Bilemot) 1.8 1997 Bilemot Cave, Korea WGPSN
Castellana 13°24′S 335°12′W / 13.4°S 335.2°W / -13.4; -335.2 (Castellana) 5.2 1997 Castellana Cave, Italy WGPSN
Choukoutien 12°48′N 23°36′W / 12.8°N 23.6°W / 12.8; -23.6 (Choukoutien) 1.1 1997 Choukoutien, China WGPSN
Fingal 13°12′S 39°54′W / 13.2°S 39.9°W / -13.2; -39.9 (Fingal) 1.5 1997 Fingal's Cave, UK WGPSN
Kartchner 7°S 179°W / 7°S 179°W / -7; -179 (Kartchner) 0.9 1997 Kartchner Caverns, AZ, United States WGPSN
Kazumura 32°00′S 41°06′W / 32°S 41.1°W / -32; -41.1 (Kazumura) 2.1 1997 Kazumura Cave, HI, United States WGPSN
Lascaux 0°48′N 161°12′W / 0.8°N 161.2°W / 0.8; -161.2 (Lascaux) 11.8 1997 Lascaux Cave, France WGPSN
Lechuguilla 7°54′N 357°06′W / 7.9°N 357.1°W / 7.9; -357.1 (Lechuguilla) 1.5 1997 Lechuguilla Cave, NM, United States WGPSN
Mammoth 18°18′S 180°18′W / 18.3°S 180.3°W / -18.3; -180.3 (Mammoth) 10.2 1997 Mammoth Cave, KY, United States WGPSN
Manjang 28°18′S 90°30′W / 28.3°S 90.5°W / -28.3; -90.5 (Manjang) 1 1997 Manjang Cave, Korea WGPSN
Orgnac 6°18′S 202°42′W / 6.3°S 202.7°W / -6.3; -202.7 (Orgnac) 10.6 1997 Orgnac Cave, France WGPSN
Padirac 4°18′S 5°12′W / 4.3°S 5.2°W / -4.3; -5.2 (Padirac) 1.9 1997 Padirac Cave, France WGPSN
Peacock 2°S 52°W / 2°S 52°W / -2; -52 (Peacock) 0.2 1997 Peacock Cave, FL, United States WGPSN
Postojna 42°54′S 359°54′W / 42.9°S 359.9°W / -42.9; -359.9 (Postojna) 6 1997 Postojna Cave, Slovenia WGPSN
Sterkfontein 4°06′S 54°06′W / 4.1°S 54.1°W / -4.1; -54.1 (Sterkfontein) 4.7 1997 Sterkfontein, South Africa WGPSN
Stiffe 27°54′S 126°30′W / 27.9°S 126.5°W / -27.9; -126.5 (Stiffe) 1.5 1997 Stiffe Cave, Italy WGPSN
Undara 2°00′N 113°48′W / 2°N 113.8°W / 2; -113.8 (Undara) 8.5 1997 Undara Cave, Australia WGPSN
Viento 12°12′N 343°54′W / 12.2°N 343.9°W / 12.2; -343.9 (Viento) 1.6 1997 Viento Cave, Spain WGPSN

Dactyl

Dactylian craters are named after the mythological Dactyls.

Crater Coordinates Diameter (km) Approval Date Named After Ref
Acmon 39°S 138°W / 39°S 138°W / -39; -138 (Acmon) 0.3 1997 Acmon WGPSN
Celmis 46°S 220°W / 46°S 220°W / -46; -220 (Celmis) 0.2 1997 Celmis WGPSN

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