Among the considerations of a reflecting telescope is that the mirrors be precisely positioned within the OTA in terms of centering, tilt, and spacing. The 14.21" ID Orion Off Axis Solar Filter fits the Orion SkyQuest XT12 Dobsonian telescope and XX12 IntelliScope Truss Tube Dobsonian. This thin wall tube permits the designer to select a smaller secondary mirror/obstruction. Trunnions on the tube rotate on 5 inch diameter low-friction plastic bearings, allowing the telescope optical tube assembly to move up and down (altitude). The Primary mirror of the XX12 telescope is precisely mounted in a new nine point Floatation Cell at the rear of the telescope. We have been quite pleased with how Orion has used its influence to engineer trendsetting products, and then have them made to a very good and practical specification. Since most of our customers are taller than that, they will find it uncomfortable to stand bent over to observe for extended periods. IntelliScope™ Larger amateur Dobsonian telescopes often incorporate setting circles as an option which are helpful for locating objects by their cataloged coordinates. A Hands-On Telescope: The Dobsonian is a telescope you can push around - literally. Click on image to see enlarged view (187,513 bytes) Noteworthy features of the SkyQuest™ XX12 include: Receive a FREE Starry Night Special Edition software suite. Working with Gravity: The center of gravity lies directly over the center of rotation in both directions, so no matter to where the telescope is pointed, the weight is evenly distributed through the mount to the ground. DeepMap 600 shows the positions of more than six hundred of the finest celestial objects visible from the Northern Hemisphere. Click on the image to see enlarged view (68,924 bytes). Maybe the idea of a big-aperture telescope appeals to you, but the portability issue has kept you on the fence. To activate the full benefits of these "digital setting circles" all one needs to do is buy the optional IntelliScope™ Computer Controller, install the provided Elevation (up-down) Encoder onto the Base, plug in the IntelliScopeª Computer Controller, and go! To activate the full benefits of these "digital setting circles" all one needs to do is buy the optional IntelliScope™ Computer Controller, install the provided Elevation (up-down) Encoder onto the Base, plug in the IntelliScopeª Computer Controller, and go! Its density (g/cm3) is 2.23. Orion SkyQuest XX12 IntelliScope Truss-Tube Dobsonian . Many people find the beauty of a Dob is in their no-frills simplicity - they just work however, the modularity of the IntelliScope™ give you the choice. Lightweight rolled and welded steel tube construction with cast aluminum end rings Exterior is finished in durable deep bronze metallic enamel, interior in antireflection Bblack CorrecTension friction optimization system for variable yet smooth friction/drag on Altitude Bearings Low-mass molded expertly finished Parabolic Primary Mirror made of Pyrex® a glass optimized for optical use Mirrors are aluminized, over coated with a transparent Silicon Monoxide protective coating assuring good longevity Adjustable Mirror Cell with spring-loaded collimation thumbscrews support the lightweight Primary Mirror. The larger of the two is a Parabolic "Primary" mirror, this is the factor by which most telescopes are described; hence a 12" telescope has a primary mirror of 12 inch (30.5cm) in diameter. Right: optional Holster for the IntelliScope™ Control (32,298 bytes). Easily slides on or off of two screws for transport. Click on image to see enlarged view (268,752 bytes). Keep in mind that at such a low magnification the Exit Pupil (the diameter of the cone of light coming out of the eyepiece) is 11.2mm and so this may not be as practical a choice for those hunting the most faint objects as another eyepiece that provides 43X showing 1.5 degrees with a 7mm Exit Pupil. This characteristic, and sound design results in almost complete elimination of unwanted vibration and oscillation; the inevitable downfall of many poor telescope mounts. The Primary mirror of the XX12 telescope is precisely mounted in a new nine point Floatation Cell at the rear of the telescope. These telescope benefit from years of study and refinement of those Dobsonian style telescopes already on the market; they include advanced design and materials to keep them lightweight and simple to use. The XX12 can be a logical step up for those who already own smaller telescopes, or it may be a more handy second telescope - a "portable light bucket" for those with even larger telescopes. If the telescope is assembled by Company Seven for pickup in our showroom (an optional service which is not mandated by us) then we do provide some hardware changes and adjustments which improve the motion and longevity even further. This provides a reasonable balance between light weight and rigidity and this is suitable for observing at the more common observing environments with calm nights. (17,089 bytes). Some companies do sell Dobs complete with tracking systems however, even these factory made tracking Dobsonians are not completely satisfactory for deep-sky astrophotography. Smart scope. We know the tricks to make the telescope move smoother up and down, left and right. 26 inches / 66 cm, about 1500X that of human Eye (actual throughput) about 14.7. But the XX12 demand better rigidity and durability and so the tube assembly is rolled and welded lengthwise. If the telescope is assembled by Company Seven for pickup in our showroom (an optional service which is not mandated by us) then we do provide some hardware changes and adjustments which improve the motion and longevity even further. A Hands-On Telescope: The Dobsonian is a telescope you can push around - literally. The light from the Primary Mirror is reflected by the Secondary out to the side of the telescope and through the Focuser to form a virtual image at a point beyond the focuser. However, if you plan to observe from sites that are prone to gusting winds then you will notice how there is more of a tendency to lateral flexure (across the longitudinal axis of the optical tube, or left to right) of the XX12 than with its smaller cousins. Orion-designed collapsible GoTo Dobsonian base AND 8-pole truss optical tube both break down into easily manageable components for transport in virtually any car The XX12g now comes Wi-Fi enabled, … Smart buy: the SkyQuest XX12 IntelliScope™ today! Aids ventilation for faster cool-down time Optics hand finished and tested on a 125 line Ronchi Silky smooth cast and machined aluminum Focuser with Drawtube Lock, with collimation adjustments Right: optional Holster for the IntelliScope™ Control (32,298 bytes). This arrangement has become known as the "Dobsonian" or "Dob". 15187) for safer, and more convenient transport the telescope optical tube assembly. Smart price. Orion Introduction News Products Pricing Distribution Notes & Interesting Articles Orion Accessories Eyepieces/Oculars Filters Mounts Telescopes, Orion Accessories Eyepieces/Oculars Filters Mounts Telescopes. While an English mathematician originated this optical concept, it was Sir Isaac Newton who first made a working model in 1668, and he continued refining the design well into at least 1671. In the case of the better made larger Dobson telescopes (12-1/2 inch and larger) a Truss arrangement is employed in order to facilitate disassembly into a more manageable and compact package. This warranty is for the … This kit includes two vital items needed to safely view the Sun through an Orion SkyQuest XX12 Truss Tube Dobsonian. Middle Magnification eyepiece - usually between 80 to 120X, for views of the full Moon, Star Clusters, etc. The other Orion XT telescopes employ a rolled steel tube with a pressed seam. This standard eyepiece holder is provided with slots for up to three 1.25 inch accessories, and one of 2" diameter. And so the same factory may manufacture a telescope that appears similar for one buyer while making it to a better specification for another. Eyepiece designs such as the Plossl, Orthoscopic are acceptable. Furthermore, this tray is held in place by two keyhole shaped screw holes so that customers may easily slide the tray up and out to remove the tray for transport or if desired. And if you tire of holding the lightweight controller, you can holster it and take a break with the optional Holster! The overall alignment ("collimation") of the one optical element to the other, and their placing the focal plane (the point where the image comes to focus) at the correct position beyond the focuser are critical. With fully motorized GoTo and tracking drives providing automated pointing to any of the over 42,000 celestial objects in the hand controller's database, the Orion SkyQuest … Our most advanced 12" Dobsonian reflector telescope is geared up for extensive exploration of the night sky. This is due to the length of the fork tines and their relatively thin profile. Improved 2" to 1.25" accessory adapter with non-marring clamp to securely hold eyepiece, threaded to accept 48mm filters so that you will only need to buy one standard size filter for use with either 1.25" or 2" eyepieces. The IntelliScope™ system provides the user of the telescope the ability to quickly locate any of more than 14,000 fascinating celestial objects that come up in the Northern and Southern hemispheres with pushbutton ease! And so the same factory may manufacture a telescope that appears similar for one buyer while making it to a better specification for another. As we assemble the XT we evaluate cosmetics, often cleaning off surplus glue or dirt. 13.45 inches / 34.2 cm, 56.7 inches / 144cm (pointing overhead) 30 inches / 76 cm While it is possible to add motors and computer control (to automatically find and track stars) it is generally not necessary or cost effective on smaller Dobsonians. The motion on both axes is "buttery smooth," letting you guide the scope with just the lightest touch from one part of the sky to another. Of course, if you wish to pay a little less then the factory can spend less time in polishing or figuring the optics or trim some cost of elsewhere. Click on image to see enlarged view (56,680 bytes). Pyrex® is a sophisticated borosilicate glass composition made of Silicon, Boron, Sodium and Aluminum. In the case of the better made larger Dobson telescopes (12-1/2 inch and larger) a Truss arrangement is employed in order to facilitate disassembly into a more manageable and compact package. With a comparatively small central obstruction of about 5 per cent (by area), and fewer optical surfaces, the contrast and brightness can actually surpass more expensive designs such as the 8" and 10" Schmidt-Cassegrain telescopes. And if you tire of holding the lightweight controller, you can holster it and take a break with the optional Holster! You do not need to loosen and tighten clamps when targeting objects, as you must with other mounts. Whereas in many economical telescopes the image seems to bounce around forever after the scope has been touched, this is not the case with well made Dobsonians. Furthermore, this tray is held in place by two keyhole shaped screw holes so that customers may easily slide the tray up and out to remove the tray for transport or if desired. Left: CD-ROM "Starry Night Special Edition" with bonus "SkyTheatre" DVD suite (43,322 bytes). Whereas in many economical telescopes the image seems to bounce around forever after the scope has been touched, this is not the case with well made Dobsonians. The truss tube can be split into a small front tube component that includes the secondary mirror … If you can not manage its heft, then you may be better served to buy it's smaller cousin the Orion XT10 Dobsonian telescope since its 47.5 inch (121cm) OTA length is accommodated across the back seat of most cars. Company Seven chose Orion's SkyQuest™ telescopes in part because of their consistently good quality mechanical components and assembly at the factory that facilitate collimating these telescopes precisely upon delivery, if needed. Collimation Cap (slips into focuser to help collimate telescope) Eyepiece Holder for 1.25" and one 2" eyepieces or accessories Many people find the beauty of a Dob is in their no-frills simplicity - they just work however, the modularity of the IntelliScope™ give you the choice. Well you can hop off it now because we’ve got the perfect solution — the "space-saving" Orion SkyQuest … Incidentally, since the Center Spot is located at the center of the Primary in an area obstructed by the Secondary Mirror, and so this mark has no adverse impact on the optical performance. Quick release three point spring loaded adjustment Finder Mounting Bracket We install the Primary Mirror making those first and most time consuming adjustments to assure each optical and mechanical component is nominally installed. TeleVue's advanced designs include the "Nagler", "Radian", or "Panoptic" series eyepieces. In addition to getting some help from Newton's Law, Orion engineers developed and now refined the original CorrecTension Friction Optimization system. The overall alignment ("collimation") of the one optical element to the other, and their placing the focal plane (the point where the image comes to focus) at the correct position beyond the focuser are critical. The Orion SkyQuest™ Dobsonian telescopes sold by Company Seven provide excellent affordability and simplicity of operation, this makes these Dobsonians a great first telescope for entry into the hobby of amateur astronomy. Your personal planetarium and guide to the night sky! Keep in mind that at such a low magnification the Exit Pupil (the diameter of the cone of light coming out of the eyepiece) is 11.2mm and so this may not be as practical a choice for those hunting the most faint objects as another eyepiece that provides 43X showing 1.5 degrees with a 7mm Exit Pupil. Also compatible with 12-volt field battery rechargeable power packs. And yet at f4.9 this telescope affords the contrast and clarity qualities required to observe the moon, and planets; the XX12 actually reveals changes throughout the observing season! Bearings molded from ultra-high molecular weight (UHMW) polyethylene and Teflon provide a continuously smooth motion of the telescope in both axes. Aids ventilation for faster cool-down time Optics hand finished and tested on a 125 line Ronchi Silky smooth cast and machined aluminum Focuser with Drawtube Lock, with collimation adjustments The XX12 Base includes a convenient Eyepiece Accessory Tray. Click on image to see enlarged view (84,638 bytes). A well made reflecting telescope can offer the best view per the dollar of the faint, deep sky objects where light gathering power is essential. Continuing its tradition of innovation and product improvement, Orion chose to make the change from Borosilicate crown glass to Pyrex® in October 2002. His goal was to get the most telescope possible into the hands of the amateur observer for the lowest relative cost. While our larger Dobson telescopes include the Truss tube telescopes made by Astro-Systems. Compared to similar-aperture Newtonians on their heavy equatorial mounts (and at times awkward eyepiece position), Dobsonians are delightfully economical. This aluminum focuser accepts low magnification, wide field of view 2" eyepieces as well as the common 1.25" diameter eyepieces. This accessory speeds up the cooling of your big reflector's optics to ambient temperature with its small, quiet fan. Optical Tube Assembly Outer Diameter: Height from Eyepiece to Ground: Some companies do sell Dobs complete with tracking systems however, even these factory made tracking Dobsonians are not completely satisfactory for deep-sky astrophotography. The overlay is dialed to line up its local time indicator marks with the Month and Day printed around the edge of the chart disc, and so when properly set this will reveal what parts of the sky may be seen at any time of the year. Click on image to see enlarged view (84,638 bytes). With 1500X the light gathering power of the unaided human eye - you will know when you are on target! Height of the Base / Carriage: Maximum Diameter of the Base / Carriage: Weight of Optical Tube Assembly: Weight of Carriage: Effective Light Gathering Power: Magnitude Limit Visual: 58.3 inches / 148 cm (with lens cover) Light gathering power increases are more important and come quicker than one may think; consider that a 6"f8 - a 48" (122cm) long reflecting telescope may show objects about 335X fainter than the unaided eye, while the XT10 (with similar overall physical length) provides about 920X the light gathering power over the unaided human eye - in astronomy size can matter! Right: Orion XT-10 (black OTA) close up showing current model 2" Focuser, with 2" to 1.25" reducer as provided with the XX12 (23,649 bytes). Community Forum Software by IP.BoardLicensed to: Cloudy Nights, This is not recommended for shared computers, Astrotrac 360 tracking platform – first impression, FIELD TEST: CARL ZEISS APOCHROMATIC & SHARPEST (CZAS) BINOVIEWER, Review of iPolar hardware and software for polar alignment. View online or download Orion SkyQuest XX12 Intelliscope Truss Tube Dobsonian 9793 Instruction Manual, Manual Dobsonians are not equatorially mounted and so they are generally moved only by hand. Compared to similar-aperture Newtonians on their heavy equatorial mounts (and at times awkward eyepiece position), Dobsonians are delightfully economical. As you assemble the Base you may install the Azimuth Encoder, or if you pick up the telescope at Company Seven then you may have the instrument assembled with the Encoder(s) already installed for you. The XT12's 59 inch (1,500mm) focal length (f4.9 focal ratio) helps to keep the telescope within the dimensional limits that most adults will find to be manageable and portable, and yet it will still provide good high as well as low magnification observing. Orion Skyquest XX12 By Terri Welisek This evaluator is not easily given to emotional praise but the Orion Skyquest XX12 with Intelliscope gets a huge Yippee complete with Snoopy dance from me. Incidentally, since the Center Spot is located at the center of the Primary in an area obstructed by the Secondary Mirror, and so this mark has no adverse impact on the optical performance. Orion fitted Carrying Bag (Model No. The IntelliScope™ Control shown is optional. Compared to similar-aperture Newtonians on their heavy equatorial mounts (and at times awkward eyepiece position), Dobsonians are delightfully economical. As you assemble the Base you may install the Azimuth Encoder, or if you pick up the telescope at Company Seven then you may have the instrument assembled with the Encoder(s) already installed for you. We both have very good reputations for after sale support and a money back guarantee. These tubes are typically made of Sonotube/cardboard, or plastic, or rolled metal. Furthermore, these accessories can project an image farther from the focuser to attain focus with most 35mm SLR cameras, optional accessories such as binocular viewers, etc. But since virtually everybody who buys these telescopes wanted the IntelliScope™ control and encoder system, the IntelliScope™ Computer Control is included as standard equipment with each new IntelliScope™ telescope. You do not need to loosen and tighten clamps when targeting objects, as you must with other mounts. (127,639 bytes). Easily slides on or off of two screws for transport. Choose from dozens of additional menu options, including tours of the best deep-sky gems each month and identification of any object in the field of view. Thanks! The XX12 Base includes a convenient Eyepiece Accessory Tray. This new system is a mechanism to adjust the tension or drag on the altitude bearings to compensate for varying loads of eyepieces, cameras, finders, etc. But what really makes this star chart invaluable is its convenience; it folds "accordion style" into a thin, pocket-size 4-¾ x 10-½ inches format - just like a road map! The chart is easy to read, and you will see more of the night sky when reading this with an optional red flashlight. The Dobsonian telescope consists of an optical tube assembly riding on a wooden alt-azimuth platform. This tube holds optical collimation well even with temperature or humidity changes. Just select an object to view from the controller's database. We work so that our telescopes will perform as well as experience shows they can, and as we process the telescope we perform some tests that will reveal to our experienced eye whether or not the optics were made and collimated as they could be. High-resolution, 9,216-step digital encoders integrated in the telescope then pinpoint the object and the display guides the operator to point the telescope right to it. The included Light Shroud and 14.21" ID Orion Off Axis Solar Filter fits both the XX12i IntelliScope and XX12g GoTo Dobsonian … Easily slides on or off of two screws for transport. The Orion SkyQuest XX12 Truss Tube Dobsonian with. 14.25 inches / 36.2 cm The IntelliScope™ product line developed by Orion that came to dominate this area of the market, Smart scope. And if you tire of holding the lightweight controller, you can holster it and take a break with the optional Holster! It is possible for anyone with simple carpentry skills to install some stiffening ribs to the side boards of the carriage but we doubt many people will find this to be a practical concern.
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