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
Roberto Botero, Kent, UK
Quote:.. I'm planning another attempt on Gamma Equ, using a C9.25 ...outside the first diffraction ring for 235mm and CO ~0.37...
Quote:... I leave you and your friend to your mutual admiration society. You guys are a riot!
Norme 150mm MCT f/13, 31% CO Yellow Zone "People say I'm in denial. I disagree."
DJ Eastern Missouri, USA Bushnell 8x42's, SV80ed, Nexstar 130SLT, C5+, 8" LX200 Classic, 10" f/7 Cave, Orion XT10 w/Moonlite focuser
David Cotterell Toronto, Ontario "If an observer actually sees an object, there is no point in referring to a formula to find out whether he ought to see it; and if he fails to detect it, no formula will ensure his success." - W.H. Steavenson 8" f/15.5 TEC Maksutov 16" f/5 Teeter/Zambuto Dob 66mm WO SD AT 65EDQ APO Refractor Astro-Physics Mach 1 GTO Mount iOptron ZEQ25 mount Canon 60Da
If you haven't seen it but have tried, don't tell someone else they couldn't have seen it ( by hinting or direct comment)
Quote:... one near-certainty with the 6” off-axis mask; but this ‘companion’ seemed relatively too bright...
Quote:...do I understand it right that your other observations made this a false positive?
Quote:Quote:... one near-certainty with the 6” off-axis mask; but this ‘companion’ seemed relatively too bright... David, do I understand it right that your other observations made this a false positive?
Quote:... I just resolved Kui 97 ...