• Explore Scientific 10 inch f5 Truss-Tube Dobsonian Telescope OTA DOB1045
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Explore Scientific

Explore Scientific 10-Inch f/5 Truss-Tube Dobsonian OTA — Portable Telescope Tube for Beginner and Intermediate Deep-Sky Observers

Explore Scientific 10-Inch f/5 Truss-Tube Dobsonian OTA — Portable Telescope Tube for Beginner and Intermediate Deep-Sky Observers

$1,089.99
$1,089.99
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A serious deep-sky telescope that you can actually take anywhere. The Explore Scientific 10" f/5 Truss-Tube Dobsonian OTA packs a 254mm parabolic mirror into a design that breaks down for transport without tools. That mirror gathers dramatically more light than smaller beginner scopes — enough to pull in faint galaxies, globular clusters, and detailed nebulae even under average suburban skies.

This is the OTA-only version, built for observers who want the premium dual-speed focuser and mirror cooling fans over the accessory-kit DOB1045C. The dual-speed 2" rack-and-pinion focuser is a meaningful upgrade — precise fine-focus control that makes a real difference at high magnification.

What you'll see:

  • Galaxies — Andromeda, Whirlpool (M51), Sombrero, and hundreds of Messier and NGC targets
  • Nebulae — Orion Nebula in vivid structural detail, Ring Nebula, Lagoon, and fainter objects
  • Globular clusters like M13 and M22, individual stars resolving across the face
  • Planets — Saturn's rings with Cassini Division, Jupiter's cloud bands, Mars surface features
  • The Moon — craters, rilles, and mountain ranges in extraordinary detail

What's in the box:

  • 10" f/5 truss-tube Dobsonian OTA — 254mm parabolic mirror in collapsible truss design
  • Dual-speed 2" rack-and-pinion focuser with 1.25" adapter — precise fine-focus control without slipping
  • Dual primary-mirror fans — accelerate cool-down time for sharper views sooner
  • Red-dot finder — fast target acquisition
  • Collimation tool — for maintaining mirror alignment
  • Light baffle — reduces stray light for better contrast

Note: This is the OTA (optical tube assembly) only — no rocker box or eyepieces are included. You'll need a compatible Dobsonian rocker box and at least one eyepiece to observe. If you want a complete ready-to-use kit, see the DOB1045C.

Specs:

Aperture 254mm (10") parabolic mirror — reaches magnitude 14.7 objects under dark skies
Focal Length 1,270mm
Focal Ratio f/5 — fast and bright for wide, detailed deep-sky fields
Optical Design Newtonian reflector (Dobsonian OTA)
Focuser Dual-speed 2" rack-and-pinion with 1.25" adapter — precise control at high magnification
Mirror Cooling Dual primary-mirror fans — faster thermal equilibration for sharper stars sooner
Limiting Magnitude ~14.7
Eyepiece Height at Zenith ~119 cm

Serious aperture in a transport-friendly design — one of the best aperture-per-dollar telescopes available for deep-sky observing.

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Frequently Asked Questions

With a beginner telescope you can see a surprising amount — the craters and mountains on the Moon, the rings of Saturn, the moons of Jupiter, and star clusters like the Pleiades. As you get more comfortable, you can also spot nebulae and distant galaxies. Not sure which beginner telescope is right for you? Check out our Telescope Buying Guide.
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All telescopes on Telescope Wolves are hand-picked with beginners in mind. If you're unsure which telescope is right for you, check out our Telescope Buying Guide.
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