Roberto Botero, Kent, UK
Used acronyms: NEML=Naked Eye Magnitude Limit, SQM=Sky Quality Meter, TML=Telescope Magnitude Limit, CO=Central Obstruction, delta_m=difference in magnitudes between double star components, RoT=Rule of Thumb, pD_mm=proposed D_mm for resolving a binary (ident with earlier used pA=proposed Aperture), D_mm=Diameter (of scope) in mm, UCAC4=USNO CCD Astrograph Catalog 4th edition
Time spent looking at the stars is added to your life
Bashful, Misty, and little Ralphie - my heavenly stars
A-P 105 Traveler ~ TEC 140 ED ~ TEC 6 MCT
A-P Mach1 GTO ~ Losmandy GM-8 ~ TV Gibraltar
Quote:After being on the list for 10 years I just ordered an AP 130 GT. It will arrive in August. I have other, larger scopes and for a while I thought about not buying it. But, then the thought of using it for visual observations of double stars hit me. M I can see it now, me, with my copy of "Pleasures of the Telescope" by Garrett Serviss and a fine 5" refractor.Chapter 1The selection and testing of a glass:" If the pure and elevated pleasure to be derived from the possession and use of a good telescope of three, four, five, or six inches aperture were generally known, I am certain that no instrument of science would be more commonly found in the homes of intelligent people."Chapter II:In the Starry Heavens "Let us imagine ourselves the happy possessors of three properly mounted telescopes of five, four, and three inches aperture, respectively..."Any recommendations for a Lightweight portable GOTO mount?
--------------------Clear Skies, PJ Refl.- 203/1420; Refr.- 110/616, 75/500; Bino.- 15X60, 10X50, 8X30 __________________________________________________