Explore Scientific 152mm Mak-Newtonian David H Levy Comet Hunter Telescope f/4.8 Optical TubeCarbon Fiber 10:1 Dual Speed Focuser

Priced: $999.99
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Explore Scientific 152mm Mak-Newtonian David H Levy Comet Hunter Telescope f/4.8 Optical TubeCarbon Fiber 10:1 Dual Speed Focuser -

The Explore Scientific David H. Levy Comet Hunter is the result of a dream collaboration between long-time amateur astronomer & Explore Scientific founder, Scott Roberts and one of his life-long heroes, David H. Levy. David is an author, lecturer & discoverer of a plethora of comets and asteroids; most notably the co-discovery of Comet Shoemaker-Levy 9, the amazing "fuzzy snowball" that broke apart and whose fragments, streaming towards Jupiter like a celestial string of pearls, collided with the giant planet in 1994.
Scott and David wanted to create a durable, rich-field telescope that would produce high contrast, pinpoint star images whether the user was sweeping the heavens for comets, keeping an eye on Jupiter's Great Red Spot, or photographing the Sombrero galaxy or Orion nebula. The optics had to be fast, the tube assembly relatively lightweight but strong and all components needed to be built to withstand the test of time and hundreds of trips to a dark sky site!

Lining and Layers:

  • The 6-inch f/4.8 Maksutov-Newtonian primary mirror is crafted from BK-7 glass and layered with Explore Scientifics' Enhanced Multi-Layer Deposition (EMD)coatings for bright, high contrast images and the elimination of light scatter

Fabric:

  • Carbon fiber isn't the most economical choice when designing a telescope, but the high strength-to-weight ratio and low expansion characteristics of the material, which helps maintain focus despite fluctuations in temperature, made it the only choice for the Comet Hunter

Features:

  • The cradle and mounting plate for a telescope is not to be trifled with. This is the component that secures your Comet Hunter to the mount and keeps it from falling on your toes as you slew it around the sky
  • The Explore Scientific Comet Hunter includes a high quality precision 2" dual-speed Crayford-style focuser with 10:1 micro focus and tension adjustment. The ability to adjust and lock the tension on the draw tube is helpful when you change the weight of the load attached to the focuser
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Clear Aperture:152mm
Coatings:EMD (Enhanced Multilayer Deposition) Coatings
Cradle:Dual Clamp-Ring Style with Built-In Handle
Dewshield Inner Diameter:6.875" / 17.46 cm
Focal Length:731mm
Focal Ratio:f/4.8
Focuser:2-Speed, w/ Adjustable Tension and Lock
Limiting Stellar Magnitude:13.4
Lowest Useful Visual Power:22.8x
Maximum Practical Visual Power:360x
Optical Design:Maksutov-Newtonian
Optical Tube Assembly Weight:15.4 lbs / 6.98 kg
Primary Mirror Diameter:152mm
Resolving Power:0.77 arc seconds
Saddle Plate:One-Piece Machined Aluminum Extrusion; Fits Explore Scientific Mounts; Vixen Mounts; Meade LXD55/75 Mounts
Secondary Mirror Diameter (M.A.):46mm
Secondary Obstruction:49mm; 32% Obstruction
Tube Construction:Carbon Fiber; Aluminum; Stainless Steel
Tube Diameter:180mm
Tube Length:696mm

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