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Explore Scientific  |  SKU: DOB1045C

Explore Scientific 10" f/5 Hybrid Truss Tube Dobsonian Telescope


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Explore Scientific 10" f/5 Hybrid Truss Tube Dobsonian Telescope



  • 10" / 254 mm Aperture
  • 1270 mm Focal Length
  • f/5 Focal Ratio
  • Floor-based Manual Alt-Az Mount

Comes with an excellent assortment of accessories:

  • 2" 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 LED Finderscope
  • Collimation Tool


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.

The Explore Scientific 10" f/5 Hybrid Truss Tube Dobsonian Telescope allows you to explore details of lunar and planetary surfaces, observe deep sky objects, and resolve bright star clusters. The fast focal ratio enables devices to capture images quickly.

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.

The rocker mount features high-altitude bearings with aluminum structures that allow for fine adjustments at high magnifications.

This is an ideal workhorse for the deep-sky observers. A 254 mm 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

We recommend buying the accessory shroud, which will improve contrast at the eyepiece and offer dew protection for the primary mirror.

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Explore Scientific 10" f/5 Hybrid Truss Tube Dobsonian Telescope | DOB1045C | 811803031791

Explore Scientific 10" f/5 Hybrid Truss Tube Dobsonian Telescope





254 mm | 10"

Focal Length

1270 mm

Focal Ratio


Field of View



0.46 arc sec theoretical limiting stellar magnitude

0.54 arc sec theoretical Rayleigh limit

14.7 theoretical limiting magnitude

Barrel Size



25.2" (64cm) truss pole length

.79" (20mm) truss pole diameter

13" (33cm) secondary cage assembly diameter

6.7" 17cm) secondary cage assembly height

16.7" (42.5cm) mirror box/rocker box height

46.9" (119cm) height to center of eyepiece at zenith


Cage Assembly: 6.5 lb , Mirror Box: 35 lb
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