...planets and deep space? I just purchased an Orion Skyquest XT10 10" Dobsonian telescope. What would be the best eyepieces to view the planets as well as deep space? It has a 2" eyepiece mount with an adapter for 1.25" eyepiece. It came with a 25mm Sirius Plossl eyepiece (1.25") and a 10mm Sirius Plossl eyepiece (1.25"). Any help and advice would be greatly appreciated. Thanks.