Explore Scientific 12" Truss Tube Dobsonian
Introducing this High-quality and functional 12" Truss Tube Dobsonian by Explore Scientific. a Generation II telescope that experience all updates. Before beginners, the vast majority of amateur telescopes dwell of small telescopes with primitive mechanics -not quite enough to see the polar caps of Mars or the rings of Saturn.
Larger telescopes, such as the Schmidt-Cassegrain, were comparably expensive. No hobby has changed by any telescope type yet quite as much as the Dobsonian Telescope. 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.
It's more than 1,800 times as light as a 305mm aperture mirror collects the naked eye. 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: It comes with: a 2" focuser with helical gearing and 10:1 reduction; LED Red Dot Finder, collimation assist tool; soft light baffle, and two radial main mirror fans for fast temperature equilibrium. With our optional coma corrector, the scope is ready for use. Buy to see it for yourself and add it to your cart now!
Item Number | DOB1245–00 |
f/ratio | f/5 |
Focal length | 1,525 mm |
Primary mirror diameter | 35 cm |
Secondary obstruction | 24% |
Mirror cell support points | 9 |
Truss pole length | 88 cm |
Truss pole diameter | 20 mm |
Secondary cage assembly diameter | 38 cm OD |
Secondary cage assembly weight | 6.5 pounds |
Secondary cage assembly height | 17 cm |
Mirror box/rocker box height | 42.5 cm |
Mirror box weight * | 50 pounds |
Height to the center of eyepiece at the zenith | 142.24 cm |
Theoretical limiting stellar magnitude | 0.38 arcsec |
Theoretical Rayleigh limit | 0.45 arcsec |
Theoretical limiting magnitude | 15.11 mag |