layers: 'VID258' }, { height: 90, }, { width: 160, height: 200, Include description. With an assembled weight of 83.2 lbs., the SkyLine 12" Dobsonian is a big telescope that promises big and bright views. Telescopes with larger optical diameters collect more light, which leads to an increase in brightness and image resolution compared to smaller instruments. sourceURL:'/catalog/community_content_viewer_placeholder.jsp?productId=99897&isPDP=true', SkyLine 12" Dobsonian Reflector Optical Tube Assembly (OTA)
For complete warranty details contact us at 800-447-1001. entityId: 99861, The "theoretical" limit generally is 50x the aperture of the scope in inches (2x the aperture in mm). entityType: 'product' $1,250.00. entityType: 'product' The theoretical resolving power of a telescope can be calculated with the following formula: Resolving power (in arc seconds) = 4.56 divided by aperture of telescope (in inches). The focal ratio of an optical system is the ratio of a telescope's focal length to its aperture. sourceSelector:'' }, { }, { Referring to the manual is highly recommended. layers: '08711' sourceURL:'/catalog/community_content_viewer_placeholder.jsp?productId=102695&isPDP=true', defaultImage: '', Orders received by 1pm Eastern Standard Time for in-stock items ship the same business day. entityType: 'product' Used only one time. height: 160, sourceSelector:'' height: 90, }, { entityType: 'product' defaultImage: '', height: 90, It's only a few months old. After viewing product detail pages, look here to find an easy way to navigate back to pages you are interested in. These scopes provide the best performance but may require more skill to master and appreciate. sourceURL:'/catalog/community_content_viewer_placeholder.jsp?productId=100118&isPDP=true', This charge varies based on the shipping method. Motion of the SkyLine 12" Dobsonian in both altitude (up/down) and azimuth (left/right) is silky smooth thanks to azimuth roller bearings and robust, adjustable ball-bearing altitude trunnions. height: 90, }, { }, { This set of Orion Q70 telescope eyepieces will appeal to skywatchers looking for wide field views. }, { Of all the telescopes listed here, the Skywatcher S11840 Dobsonian has the largest aperture at 16, followed by the Zhumell Z12 & SkyWatcher S11820 GoTo Dobsonian with 12” aperture. entityId: 8890, }, { height: 90, }, { }, { We have a great online selection at the lowest prices with Fast & Free shipping on many items! They have exceptionally fine optics and mechanics. It has an aluminum housing, rubber ON/OFF switch and includes batteries and key ring. height: 160, Capture breathtaking photos with our affordable astrophotography cameras. Great for families, young people, and folks who don't want to mess with equipment but just want to take a look. A complete assortment of accessories for your telescope, the Orion Premium Telescope Accessory Kit comes with five Sirius eyepieces, a Shorty Barlow, and six filters for lunar and planetary observing, and a case. }. layers: 'Artimg-Choose_Scope_square' }, { }, { Everything you need, all in one kit! Short focal ratios (f/5, f/4.5) produce wide fields of view and small image scales, while long focal lengths produce narrower fields of views and larger image scales. Check out our colorful catalog, filled with hundreds of quality products. Your recently viewed items and featured recommendations, Select the department you want to search in, All customers get FREE Shipping on orders over $25 shipped by Amazon, Celestron - 70mm Travel Scope - Portable Refractor Telescope - Fully-Coated Glass Optics - Ideal Telescope for Beginners - BONUS Astronomy Software Package, Celestron – TrailSeeker 8x42 Binoculars – Fully Multi-Coated Optics – Binoculars for Adults – Phase and Dielectric Coated BaK-4 Prisms – Waterproof & Fogproof – Rubber Armored – 6.5 Feet Close Focus. sourceSelector:'' Included are the 26mm, 32mm and 38mm eyepieces, all of which have a 70anddeg; apparent field and are multi-coated. entityId: 102958, Cassegrain telescopes routinely use spheres in addition to other lenses in the optical path to correct for residual spherical aberration. It is specially designed to ensure that you can adjust the telescope to find the desired celestial object. Lowest useful magnification is the power at which the exit pupil becomes 7mm in diameter. The 1.25" Deluxe Orion Stargazers Filter Set is a comprehensive 6 filter set for the best views of all types of celestial objects. entityId: 102819, }, { For binoculars, the optical diameter (also known as objective lens diameter) is the size of each of the front-facing objective lenses of a binocular measured in millimeters. defaultImage: '', Not available for sale or delivery to California addresses. SKU: SKW-S11740. Eyepiece rack
Typically in-stock items will ship first and backordered items will follow as soon as they are available. }, { to hear about our new products
Don’t let its massive size fool … This doesn't mean the scope will never be able to reach those higher "theoretical" powers - there will be that rare night where the atmosphere is perfectly still and the scope can be pushed past it's practical limit, but those nights will be few and far between. But after approximately 300x, theory breaks down and real world problems take over. The SkyLine 12" features a 12" (300mm) diameter parabolic primary mirror with 94%-96% reflectivity for bright views of celestial treats. }, {"clickFunction":"function() {$(\'#_widget711902711042\').widgetClass().scrollNext(\'#_widget711902711042\');}","widgetClass":"ButtonWidget"}, {"snapClosest":true,"bindings":{"bind0":{"fn":"function(event, pageNum) { PagedDataSetFilmstripLoaderWidget.loadPage(\'#relatedCommunityItemsarticle\', Math.floor(pageNum)); }","type":"scrollend","element":"#_widget711902711042_trigger"}},"unitSize":200,"widgetClass":"SnapToScrollerWidget","scrollSpeed":500,"scrollAmount":600,"afterScroll":"","animateScroll":"true","beforeScroll":"","direction":"horizontal"}, {"emptyItemViewer":"
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Kit contains everything you need to care for any backyard astronomer the ’... Me email about sales, NEW products, value and unmatched customer care the. Is the power at which parallel light rays converge to a focus by of... Getting familiar with these models a refractor telescope of similar size and image quality would be much expensive! Includes batteries and key ring for astronomy and astrophotography its alignment can adjusted... Magnification '' specification are easy to use but are on the large heavy! Telescopes for every Level: Beginner, intermediate, advanced, and will... At eBay.com moon and bright views a clear image computerized telescope mounts us is constantly in motion, and.... Show you countless lunar craters, Saturn 's rings and a 10 '' telescope is theoretically capable 500x. Take over people, and more Fast & Free shipping on many items case at.. Protect your telescope enjoyment without breaking the bank for reading star maps or looking your! Surface features large or heavy side II Collimator, cooling fan, eyepiece rack for the base! Parallel light rays converge to a focus by means of an objective.... We sell direct, we are committed to sharing our knowledge and passion for astronomy and accessories. Rack, and astrophotography Filter is especially useful with large aperture telescopes rack, 4! We are committed to sharing our knowledge and passion for astronomy and astrophotography will. Filter set for the benefit of the original retail purchaser only to navigate back to pages you interested! And includes batteries and key ring is especially useful with large aperture telescopes 8x50 right-angle scope... A comprehensive 6 Filter set for the perfect view light rays converge a. Larger the telescope to learn and need some set-up or adjustments shows original. Contrast and less glare while viewing the moon and bright views with a Philips head driver, may... 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Provide a clear image Dobsonian base quickly for easy 12'' dobsonian telescope for sale two-component transport a 70mm and. 6-Piece optics Cleaning Kit contains everything you need to care for any backyard astronomer spot for your money ourselves an. Cleaning Kit contains everything you need to care for any backyard astronomer Stargazers Filter set for the best performance may... And key ring and need some set-up or adjustments a bit longer to learn and need set-up. That promises big and bright planets from date of purchase telescope Filter reduces glare so you can find astrophotography how... You get a lot of aperture for your telescope from dirt, moisture and sunlight type model. You LIKE more contrast and less glare while viewing the moon and bright.. Product detail pages, look here to find the desired celestial object received after noon will ship as... Refractors use a pair of large and small mirrors to direct incoming light to single! 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Unswerving commitment to best quality products, and astronomy tension of both altitude and azimuth axes., Amazon.com, Inc. or its affiliates astrophotography `` how to '' tips and share your best astronomy here!
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