Astronomer for the People. "Taking Chaos out of the Cosmos" "There's an amazing universe all around us...EXPLORE IT!!!" So many galaxies, so little time!
"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:He's just being conservative, since there's a wide range of skill between observers. Some can go to mag 15 in an 8", others can't. Clear skies!Thomas, Denmark
7x35 and 10x50 sears tower binocs, 3" f/10 edmunds reflector, 2.4" f/11.7 manon refractor, 6" f/8 jaegers refractor, 10" f/11 R30 Istar refractor, 3" f/15.8 sans&streiffe refractor, 3.1" f/15 selsi refractor(towa 339), 2.4" f/15 sears refractor, selsi 30x30mm spyglass, criterion 5-draw 25x45x75x spyglass(1957), 4.25" f/14.8 tasco 20te.http://cleardarksky.com/c/OmahaNEkey.html
The opinions expressed herein are solely mine as an amateur astronomer hobbyist & consumer. Information herein was correlated from experience, discussions with others, & research from multiple sources freely available at time of posting. All reasonable care & skill was used, but no warranty is made as to accuracy, & liability cannot be accepted for errors/omissions. This is for information only and not intended nor implied to be a substitute for professional advice.
Quote:Having owned the 8" F8.8 for about two years, I would say this scope is really great for both planetary and DSO observation......But one important aspect I want to mentioned here is the weight , at 45 LBs, is only the bare OTA, the whole OTA with all the accessories will exceed 60 Lbs, and mine even hit close to 70 lbs....REgardsJames Ling
.... back yard astronomer ================= Don't forget to look at the moon often. Its a play ground of fun if you throttle up the magnification!
Quote:On Sale! Phoenix WFT 204-6 Comet Hunter Achromatic Doublet - $2994 On Sale! Perseus AT 204-9 Achromatic Doublet - $3244 Want to track down those DSOs? You need aperture. F6 or F9 Want to see great planetary detail? You need aperture. F9 The Rayleigh Limit for a telescope with a 6 inch aperture is approximately 0.9 arc seconds The Rayleigh Limit for a telescope with a 8 inch aperture is approximately 0.7 arc seconds An 8 inch scope gathers twice as much light as a 6 inch An 8 inch scope has a limiting magnitude of at least 12.0 2 Element Achromatic Doublet designed by our own Master Optician Zdenek Rehor 210 mm Lens diameter with 204 mm (8 inch) clear aperture 1200 or 1800 mm Focal Length F5.9 and F8.8 Push-pull collimatable cell Fully Multicoated lenses Magnesium Alloy powder coated inside and out CNC machined tube CNC machined, anodized and color scheme counter cell and back plate New 3rd generation 2.5 inch fully rotatable, dual speed, draw tube brake, CNC machined Crayford Style Istar focuser Screw attached baffles. Absolutely no plastic, glue, molded metal parts or thin walled aluminum Scopes are hand assembled and individually star tested F5.9 1220 mm tube length including dew shield F8.8 1639 mm tube length including dew shield - 45 lbs. All Scopes include free shipping anywhere in the continental US 8 inch scopes include an Istar US made newly designed 3rd generation focuser 5 year warranty on lenses and tubes Available Pro style CNC machined powder coated tube rings