Index[A] [B] [C] [D] [E] [F] [G] [H] [I] [J] [K] [L] [M] [N] [O] [P] [Q] [R] [S] [T] [U] [V] [W] [X] [Z] R Coronae Borealis variable stars RACI (right-angle record keeping 2nd 3rd 4th 5th 6th 7th recurrent novae recycled or remanufactured Teflon red pens reflector telescopes 2nd 3rd 4th 5th 6th 7th 8th Dobsonian reflectors 2nd 3rd 4th 5th EQ (equatorially mounted) reflectors refractor telescopes 2nd 3rd 4th 5th 6th 7th advantages disadvantages false color grab-'n-go telescopes short-tube refractors Revised Harvard Photometry Catalog Rigel QuikFinder unit-power finders Right Ascension 2nd right-angle right-angle finders rods roof prisms rotating variable stars RR Lyrae variable stars RTGUI software rubylith film RV Tauri variable stars |