Explore Scientific 10" Truss Tube Dobsonian
Introducing this High-quality and functional 10" Truss Tube Dobsonian by Explore Scientific. a Generation II telescope that experience all updates. Before beginners, the vast majority of amateur telescopes consisted of small telescopes with small mounts that made them hard to use for deep-sky severe observations. But thanks to the popularization of John Dobson's altazimuth mount design with a low center of gravity combined with a Newtonian optical assembly. No hobby has changed by any telescope type yet quite as much as the Dobsonian Telescope.
Large commercial telescopes could do the job but were comparably expensive. The ingenious combination of simple yet efficient mechanisms with big-aperture Newtonian optics supplies the Dobsonian Telescope with worldwide fame and success. This telescope design usually suggests the most significant and largest aperture per dollar of any telescope model. Disassembling the scope without tools guarantees a trouble-free move of this great scope, even in very tiny in size cars. The entire format has been optimized for maximum inflexibility with minimum weight. They combine large altitude bearings with a developed metal structural design that grants an excellent and smooth adjustment, even at greater magnifications—the ideal workhorse for the deep sky watchers.
More than 1,500 times as much light as the naked eye is collected by a 254mm aperture mirror. Even young and new observers will see details on planets and deep-sky objects. Many star clusters are bound and determined to the core, spiral structure in distant galaxies is apparent and reliable, and the complex matrix of bright and dark nebulae is a memorable and remarkable experience: azimuth (13-inch) bearings and Oversize altitude (16.5-inch) grant for a smooth procedure. Easy-to-adjust collimation mechanisms demand no additional tools and unique features for primary and secondary mirrors, which is only one person of this design. It comes with: Two-Speed 2-inch Rack & Pinion Focuser with 1.25-inch Adapter; LED Red Dot Finder, Collimation Assist Tool; Flexible Light Weight Light Baffle; Two Primary Mirror Fans with Battery Pack; Instructions; buy to see it for yourself and add to cart now!
Item Number | DOB1045–00 |
f/ratio | f/5 |
Focal length | 1,270 mm |
Primary mirror diameter | 25.4 cm |
Secondary obstruction | 24% |
Mirror cell support points | 9 |
Truss pole length | 64 cm |
Truss pole diameter | 20 mm |
Secondary cage assembly diameter | 33 cm |
Secondary cage assembly weight | 6.5 pounds |
Secondary cage assembly height | 17 cm |
Mirror box/rocker box height | 42 cm |
Mirror box weight * | 35 pounds |
Height to center of eyepiece at zenith | 119 cm |
Theoretical limiting stellar magnitude | 0.46 arc sec |
Theoretical Rayleigh limit | 0.54 arc sec |
Theoretical limiting magnitude | 14.7 |
Theoretical maximum magnification | 500x |
* | Mirror weight can vary because of the manufacturing process; these values are approximate |