Explore Scientific - Generation II - 16-inch Truss Tube Dobsonian Telescope - SKU# DOB1645-00

by Explore Scientific
$3,599.99

CURRENTLY ON BACKORDER. Before you order, we recommend that you send a request for the estimated shipping time to info@astrozap.com (be sure to include the SKU #).

If the estimated shipping time is acceptable, you can submit an order to hold your place in our order line for the product. Please be aware that your payment will be processed at the time of ordering. Estimated shipping times are subject to change, and you can cancel your order anytime before the product is shipped from Explore Scientific.

This is a Generation II telescope. All updates have been performed on this telescope. No telescope type has changed the hobby quite as much as the Dobsonian. Before the popularization of the Dobsonian by John Dobson, the vast majority of amateur telescopes consisted of small telescopes with primitive mechanics - barely enough to see the polar caps of Mars or the rings of Saturn. Larger telescopes, such as the Schmidt-Cassegrain were reserved for the wealthy. The ingenious combination of simple yet effective mechanisms with the greatest possible opening gives the Dobsonian telescope a unique triumphant march around the world. Nowhere do you get as much light for your money like a good Dobson. Disassembly of the scope without tools ensures a trouble-free transport of this great scope even in small cars. The entire structure has been optimized for maximum stiffness with minimal weight. The combination of high altitude bearings with optimized aluminum structures allows fine adjustment flows at high magnifications.

The ideal workhorse for the deep sky observers. A 406mm mirror collects more than 2,400 times as much light as the naked eye. Details on planets and deep sky objects will be visible even for inexperienced observers. Bright star clusters are resolved to the core, and the sight of the terminator on the moon is an unforgettable experience.

Includes 2" focuser with helical gearing and 10:1 reduction; LED Red Dot Finder, collimation assist tool; soft light baffle and two radial main mirror fan for fast temperature equilibrium.

The scope is ready for the use with our optional coma corrector.


Specifications



Item Number DOB1645–00
f/ratio f/4.5
Focal length 1,826 mm
Primary mirror diameter 40.9 cm
Secondary obstruction 25%
Mirror cell support points 9
Truss pole length 140 cm
Truss pole diameter 25 mm
Secondary cage assembly diameter 48 cm OD
Secondary cage assembly weight 8 pounds
Secondary cage assembly height 17 cm
Mirror box/rocker box height 42.5 cm
Mirror box weight * 66 pounds
Height to center of eyepiece at zenith 167 cm
Theoretical limiting stellar magnitude 0.29 arc sec
Theoretical Rayleigh limit 0.34 arc sec
Theoretical limiting magnitude 15.74 mag
Theoretical maximum magnification 800x
* Mirror weight can vary because of the manufacturing process; these values are approximate

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