Thierry Legault Thierry Legault Thierry Legault (born 1962, chinese name :特厄力‧立夠) is a French amateur astronomer, specializing in astrophotography. An engineer by trade, he started astrophotography in 1993 and resorted to CCD cameras to photograph the deep sky. He then joined the "Association des utilisateurs de détecteurs electroniques (l'AUDE)", which aims to develop astronomical observation based on electronic detectors. In 1994, along with Christian Buil, he participated in a mission at the Pic du Midi Observatory on the collision of comet Shoemaker-Levy 9 with Jupiter and launched himself into planetary photography. He is the first amateur to have shown on his photographs
Shoemaker (lunar crater) named Mawson (after the Antarctic explorer Douglas Mawson). It was officially named Shoemaker in honor of Eugene Shoemaker, the geologist whose remains were on board the Lunar Prospector spacecraft that impacted this crater floor. This crater became of interest to scientists when the Lunar Prospector detected unusually high concentrations of hydrogen on the floor of this and other nearby craters using a neutron spectrometer. The floor of this crater is kept in permanent shadow from the Sun, and thus maintains a temperature below . Thus the floor forms a cold trap, and any molecules of water that wander into the