Observation by Bob Paterson
Bob is an experienced lunar observer who lives in Speen, near Newbury in Berkshire, England. He has been an active member of the SPA Lunar Section since 1992 and has contributed hundreds of excellent observational drawings. Bob uses a 150 mm Newtonian.
Deslandres
18 November 1996 150 mm reflector x61 & x135
There was much subtle shading visible within Deslandres, which I have only indicated in general terms. Shadows cast by the southeast walls showed the effect of fine "spires" at x135. Running from Lexell to Hell was what seemed to be a great gash in the lunar surface, and I can only assume that here the surface falls away quite steeply (in addition to the Moon's curvature) as one of my maps shows the spine of land to the west as being the far rim.
