Topography of the Alphonsus and Arzachel area of the Moon
Alphonsus (111km diameter) is one of the most intensively studied craters in the solar system.
Read moreAlphonsus (111km diameter) is one of the most intensively studied craters in the solar system.
Read moreThis paper describes an ingenious Occultation Machine that simplified the process of making occultation predictions.
Read more