Celestron CPC1100 Orion XT10i, XT12i Celestron C6R Explore Scientific 80mm APO Celestron Advanced VX mount Lunt LS80THa/PT/DSII/B1800FT Canon 15x50 IS Binoculars ES 82° 6.7, 11, 30mm ES 100 Degree 9, 14, and 20mm Dinkmeier Premimum Binoviewers TeleVue 24 Panoptic pair
"You're not afraid of the dark, are you?" - Riddick "The best scientists are humble. They seek to understand, not to ensure their legacy, but merely to understand." - Mori
Quote:I wasn't sure if things took a year, a 10 years, 10 thousand years or 10 million years.
--------------------Clear Skies, PJ Refl.- 203/1420; Refr.- 110/616, 75/500; Bino.- 15X60, 10X50, 8X30 __________________________________________________
DJ Eastern Missouri, USA Bushnell 8x42's, SV80ed, Nexstar 130SLT, C5+, 8" LX200 Classic, 10" f/7 Cave, Orion XT10 w/Moonlite focuser
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
Quote:Below is a link to part 5 of a five part write-up about stars with orbital periods amateurs can follow visually.Be sure to check out parts 1-4 also.http://admin.prairieastronomyclub.org/dblstar5.htm