Explore Scientific 10-inch Hybrid Truss Tube Dobsonian Telescope - DOB1045C
| Article number: | DOB1045C |
| Availability: | More on the Way to us |
This is a hybrid truss-tube Dobsonian because the secondary-mirror is held inside a tube (like a traditional Dobsonian telescope) rather than an open cage.
Nowhere do you get as much light for your money like a good Dobsonian. Disassembly of the scope, which does not require 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 flow at high magnifications.
This is an ideal workhorse for the deep-sky observers. A 254mm mirror collects hundreds of 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.
The significant differences between this telescope and the Explore Scientific Generation II model are:
* White aluminum-tube secondary rather than a cage assembly
* Single-speed focuser rather than a 2-speed focuser (upgrade requires a new focuser; not just a 10:1 reduction knob)
* No cooling fans
Features:
- Comes with an excellent assortment of accessories
- Single-speed focuser
- Two eyepieces: a 25 mm Plossl; a 10 mm Plossl;
- Moon filter
- Moon map
- Wil Tirion multi-latitude planisphere for the Northern Hemisphere
- Red-dot finder
- Collimation tool
Specifications:
- Item Number: DOB1045C
- 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: 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: * 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 mag
- Theoretical maximum magnification: 500x
* Mirror weight can vary because of the manufacturing process; these values are approximate.