About 100X is around the minimum to see planetary details, 120X to 200X does better when skys permit..longer focal length scopes do better at the upper end, 50X per inch of aperature is about right for maximum, example a good 60mm longer refractor can handle 125X at the upper end, my longer focal length ETX90 3.5 inch maximum is around 200X, the larger 8 inch Dob is about 250X...usually find because of sky conditions 200X to 300X are about the limit...
Takes abit of practice to view at higher powers, after awhile will be able to put the image on the far edge of the eyepiece and let it travel all the way across, should add some more time for the view, besides filters for cutting the glare the planet Jupiter is getting lower in the sky which takes away the details because of the dense atomosphere...a bummer, simply have to wait for its next go around...
Even a 60mm 2.5 inch will show two major bands and it 4 moons, 5 to 7 bands with the 8 inch Dob, and a longer focal length even the ETX90 shows Shadow transits cast on Jupiters Disc, my favorite to observe, but again will have to wait for its next cycle when located higher in the sky...
Early morning at dawn soon will be getting views of Saturn, should easily detect its ring regardless of the size of scope... |