Sky-Watcher Classic 250P 10" Traditional Dobsonian Telescope #S11620

Description: Sky-Watcher Classic 250P 10" Traditional Dobsonian TelescopeSKU: SKWS116201Mfr. Part: S11620 Item IncludesOptical Tube - Dobsonian Base - 9x50 Finderscope - 1.25" 25x Eyepiece - 1.25" 10x Eyepiece - 2 to 1.25" Adapter - Dust Caps - Sky-Watcher 2 Year Limited Warranty DescriptionFeaturing large apertures and easy functionality, Sky-Watcher's Classic Dobsonian is the ideal beginner scope. Often referred to as 'light buckets', Dobsonians provide users with the highest possible aperture for their money when compared to telescopes of a similar size, such as Schmidt-Cassegrain's or refractors. Developed in the 1970s, the Dobsonian-style telescope is an inexpensive solution for bright, detailed visual observing using a simple design. The name 'Dobsonian' comes from the telescope's inventor, John Dobson, a Vedanta monk who popularized sidewalk astronomy and dedicated his life to astronomy outreach. Dobson was notorious for constructing large aperture reflecting telescopes capable of deep sky viewing, using low cost materials. These were often made with found materials, heavy cardboard tubes, recycled porthole glass, and plywood mounts. Dobson, who literally wrote the book on how and why to make amateur telescopes, encouraged other astronomers to assemble their own telescopes and taught workshops on telescope making. The Classic Dobsonian uses a parabolic primary mirror design, constructed of borosilicate, then polished and coated with our proprietary Radiant Aluminum Quartz (RAQ), producing a remarkable 94% reflectivity. With a 10-inch aperture, the Classic 250P Dobsonian is 1235 times brighter than the human eye! This simple yet effective design is perfect for visual observation of faint objects, such as nebulae, star clusters, and galaxies. Supporting the Classic Dobsonian is more than just a simple rocker box. The base uses Teflon bearings for smooth, easy azimuth slewing and a patented tension control handle to lock the telescope in place. Once locked on an object, the telescope can support both 1.25-inch accessories as well as the heavier 2-inch eyepieces, allowing you to use virtually any eyepiece on the market. The Classic Dobsonian includes two 1.25-inch eyepieces, a 1.25-inch adapter, a 2-inch eyepiece adapter, dust caps and a 9x50 finder scope. At Sky-Watcher, we stay true to the traditional John Dobson design, using just two mirrors, a metal tube, and a simple rocker box. Although we love computerized telescopes, using a star chart to find objects by hand can be far more fulfilling and will improve your knowledge of the night sky. Unplug your electronic devices, step outside, and become immersed in the wonders of the universe.FeaturesAffordable, large 250mm aperture delivers stunning viewing experience56% brighter than the Classic 200P DobsonianPatented tension control handle allows for precise slewing and maximum stabilityParabolic primary mirror with Radiant Aluminum Quartz (RAQ)Heavy-duty rocker box with Teflon bearings2" Crayford-style focuser with 1.25" adapter allows for use of nearly any eyepieceSpecificationsOptical DesignNewtonianMirror CoatingsRadiant Aluminum Quartz (RAQ) coatings with 94% reflectivityGlass TypeBorosilicatePrimary Aperture254mmFocal Ratiof/4.7Focal Length1200mmSecondary Diameter64mmSecondary Obstruction (by diameter)25%Secondary Obstruction by Area6%Optical InfoDawes Limit0.46Rayleigh Limit0.55Limiting Mag.14.5Minimum Magnification36Maximum Magnification500Light Gathering57% (compared to next size down)Observational InfoFocuser2" (5.08cm) CrayfordOTA Length (Retract/Ext.)45" (114.3cm)OTA Outer Diameter11.37" (28.89cm)Zenith Eyepiece Height48" (121.92cm)DimensionsDob Base: 29 x 20.5" (73.66 x 52.07cm) WHO WE ARE Adorama is one of the nation's largest Photographic retail and mail order suppliers. For over 35 years we have been serving professionals as well as amateurs in the photographic, video, digital imaging and telescope fields. We offer the best combination of quality services, vast selection, knowledgeable staff, and competitive pricing. Adorama Camera is your #1 source for the best and newest products in the photographic industry, and the largest inventory of items such as Digital Cameras, Digital Camera Accessories, Memory Cards, 35mm Cameras, Medium Format Cameras, Lenses, Video Cameras, TV's, MP3 Players, Binoculars, Telescopes, Scanners, Inkjet, Dye-Sub & Laser Printers, Office Fax machines, Shredders, Projectors, Inkjet Paper, Photographic Accessories, Filters, Batteries, Cases, Tripods, Flashes, Lighting & Studio Equipment, Film, Darkroom Products and Audio Video Equipment. All new equipment comes with all of the factory included accessories, including a full manufacturer's warranty, unless otherwise noted. We only post items that are in-stock and ready to ship. 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Items returned without a tracking number might take much longer to be processed. If you live in New York you may bring the return to our Manhattan store for exchange or refund. Hours of operationMon-Thurs: 9:00am - 6:00pm Friday: 9:00am - 1:00pm : 12pt;"> 9:00am - 6:00pm Friday: 9:00am - 1:00pm

Price: 910 USD

Location: Elizabeth, New Jersey

End Time: 2024-01-28T09:34:25.000Z

Shipping Cost: N/A USD