http://planetarynames.wr.usgs.gov/
25143 Itokawa
Abbe (crater)
Abbot (crater)
Abel (crater)
Abenezra (crater)
Abul Wafa (crater)
Acosta (crater)
Adams (lunar crater)
Airy (lunar crater)
Aitken (crater)
Al-Bakri (crater)
Al-Biruni (crater)
Al-Khwarizmi (crater)
Al-Marrakushi (crater)
Alden (crater)
Alder (crater)
Aldrin (crater)
Alekhin (crater)
Alexander (crater)
Alfraganus (crater)
Alhazen (crater)
Almanon (crater)
Alpetragius (crater)
Alphonsus (crater)
Alter (crater)
Ameghino (crater)
Amici (crater)
Ammonius (crater)
Amundsen (crater)
Anaxagoras (crater)
Anaximander (crater)
Anaximenes (crater)
Anders (crater)
Anderson (crater)
Andersson (crater)
Andronov (crater)