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Explore Scientific  |  SKU: ES-ON20859

Explore Scientific 8" f/5.9 Dobsonian Telescope

Sale price $549.99 Regular price $687.49

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Ships from US warehouse in 1-2 business days

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The Explore Scientific 8" f/5.9 Dobsonian delivers 8-inch deep-sky performance in the most straightforward, value-focused package available. Its 208mm parabolic mirror gathers over 800 times the light of the unaided eye — enough to reveal spiral galaxy arms, nebula structure, Saturn's rings and Cassini Division, and fine lunar craters and rilles. This is the most direct path to serious aperture: proven optics, a rock-solid Dobsonian base, and a quality eyepiece to get you observing immediately.


Key Features
  • 208mm parabolic mirror — over 800x the light of the unaided eye, resolving galaxies, nebulae, and star clusters with sharp contrast and fine detail
  • Fast f/5.9 optics — bright, wide fields at 1219mm focal length, well suited for deep-sky sweeping and high-contrast planetary views
  • Smooth 2" Crayford focuser — backlash-free focusing with a 1.25" adapter for full eyepiece compatibility
  • Spring-tension Dobsonian base — stays balanced when you swap eyepieces or add accessories, with smooth push-to tracking
  • Durable rolled-steel tube — rigid construction holds collimation through transport and temperature swings
  • Under 38 lbs total — tube (19 lb) and base (18 lb) are manageable for one-person setup and car loading
  • Simple two-piece design — tube lifts off the base; no truss assembly, no alignment steps between you and the sky
  • Smartphone adapter included — start capturing the Moon, Jupiter, and Saturn with your phone right away

Ideal For
  • Upgraders from smaller scopes ready for the jump to 8" aperture and the deep-sky detail it unlocks
  • Observers who already own eyepieces and want maximum optics per dollar without paying for accessories they'll replace
  • Visual deep-sky enthusiasts chasing galaxies, nebulae, and star clusters from backyard or dark-sky sites
  • Simplicity-first astronomers — no GoTo alignment, no truss setup, just set down the base, drop in the tube, and observe
  • Dark-sky travelers who need a powerful scope that breaks into two portable pieces for the drive to a remote site

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Compare Explore Scientific dobsonians
A table comparing the facets of 3 products
Facet
Explore Scientific 8-inch Dobsonian telescope front three-quarter view showing open tube, secondary mirror spider, focuser, red-dot finder, and Dobsonian base
Explore Scientific 8" f/5.9 Dobsonian Telescope
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Explore Scientific 8-inch Ruby Red Dobsonian telescope on its base, front three-quarter view showing the open tube end, Crayford focuser, and red-dot finder
Explore Scientific 8" f/5.9 Dobsonian Telescope (Ruby Red)
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Explore Scientific 10-inch Dobsonian telescope on its base, front three-quarter view showing the open tube end, Crayford focuser, and red-dot finder
Explore Scientific 10" f/4.7 Dobsonian Telescope
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Price
Price
Sale price $549.99 Regular price $687.49
Sale price $649.99 Regular price $812.49
Sale price $749.99 Regular price $937.49
Primary Mirror Diameter
Primary Mirror Diameter
208 mm
208 mm
254 mm
Focal Length
Focal Length
1219 mm
1219 mm
1200 mm
Focal Ratio
Focal Ratio
f/5.9
f/5.9
f/4.7
Weight
Weight
Tube: 19 lb , Base: 18 lb
Tube: 19 lb , Base: 18 lb
Tube: 24 lb , Base: 21 lb

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