Explore Scientific 152 Comet Hunter 6" f/4.8 Maksutov-Newtonian Telescope - OTA Only

Explore Scientific 152 Comet Hunter 6" f/4.8 Maksutov-Newtonian Telescope - OTA Only

Explore Scientific 152 Comet Hunter 6" f/4.8 Maksutov-Newtonian Telescope - OTA Only

B&H # EX152CH6 MFR # MN06048CF-05
Explore Scientific 152 Comet Hunter 6" f/4.8 Maksutov-Newtonian Telescope - OTA Only

Explore Scientific 152 Comet Hunter 6" f/4.8 Maksutov-Newtonian Telescope - OTA Only

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Expected availability: 7-14 business days

Product Highlights

  • 152mm / 6" Aperture
  • 731mm Focal Length, f/4.8 Focal Ratio
  • Lightweight Carbon Fiber Optical Tube
  • Anti-Reflection Fully Multicoated Optics
  • 2" Crayford-Style Two-Speed Focuser
  • 1.25" Eyepiece Adapter
  • Vixen-Style Dovetail Mounting Plate
  • Mounting Cradle-Ring with Handle
  • Mount and Tripod Required
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This product may contain mercury. Consult your local environment authorities for regulations regarding how to properly dispose of products containing mercury.

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  • 1Description

Developed in collaboration with David H. Levy, one of the discoverers of the Shoemaker-Levy 9 comet among others, the Explore Scientific 152 Comet Hunter 6" f/4.8 Maksutov-Newtonian Telescope is purpose-built to produce high contrast images with a precise focusing capability for observing everything from planets and deep-space objects, to sweeping the sky for comets. The Maksutov-Newtonian design utilizes a front corrector plate to flatten the incoming light, a rear mirror to focus the light, and a secondary mirror to direct the light to the observer's eye. This combination of corrector plate and mirrors creates a wide flat field of view with minimal edge distortion to bring the resolution down to a fine 0.77 arcsec. Combined with the fast f/4.8 focal ratio, it makes an equally useful platform for astrophotography or astro-imaging. The optical tube assembly (OTA) is constructed of carbon fiber to make it less resistant to expansion and contraction with temperature changes, which can cause the corrector and mirrors to shift out of alignment over time causing the scope to be incapable of producing sharp images.

The Comet Hunter is offered here without a mount or tripod, but a mounting cradle-ring assembly is provided for attaching it to compatible mounts. It clamps over the optical tube and lets the user adjust the orientation and position of the scope relative to the mount to optimize viewing comfort and balancing, while avoiding interference with other equipment. The stainless steel Vixen-style dovetail plate makes it compatible with any alt-az or equatorial mount with a Vixen-style saddle. The OTA is equipped with 2" Craford-style focuser that, unlike a traditional rack-and-pinion focuser, uses a steel rod held tightly against the draw tube. This toothless friction system eliminates backlash and enables ultra-fine precision focusing. Having the ability to use large 2" eyepieces provides an expansive amount of angular view required for wide-field observations, as well as providing full coverage for today's larger imaging sensors for astrophotography.

Optical Performance
  • Aperture: 6" / 152mm
  • Focal ratio: f/4.8
  • Focal length: 731mm
  • Maksutov-Newtonian style optical design
  • Anti-reflection fully multicoated optics maximize light transmission through the optical path while improving contrast and color fidelity
  • Secondary mirror: 49mm diameter with a 32% obstruction
  • Resolution: 0.77 arcsec
Mounting
  • User-supplied mount and tripod required
  • Vixen-style dovetail plate included
  • Compatible with any alt-az or equatorial mount with a Vixen-style saddle
  • Cradle-ring assembly for plate allows the scope orientation to be changed based on mount configuration
  • Integrated carry handle on cradle-ring assembly
2" Crayford Focuser
  • Accepts 2" eyepieces and accessories
  • 10:1 two-speed focusing
    • Two coarse focus wheels, one on each side of eyepiece holder
    • Fine smaller focus dial on right-side of eyepiece holder
  • Crayford focusers use a toothless friction system that allows for super-fine precision focusing without backlash
  • The larger drawtube allows light to cover today's imaging sensors for astrophotography without vignetting
  • 1.25" adapter to use the more common smaller barrel diameter eyepieces and accessories
UPC: 812257010356
In the Box
Explore Scientific 152 Comet Hunter 6" f/4.8 Maksutov-Newtonian Telescope - OTA Only
  • 1.25" Eyepiece Adapter
  • Dew Shield and Cover
  • Cradle Ring with Dovetail Plate
  • Limited 1-Year USA Warranty, Extendable to Transferrable Lifetime Warranty with Registration
  • Table of Contents
    • 1Description
    Optical Design Maksutov-Newtonian
    Aperture 6.0" / 15.2 cm
    Focal Length 731 mm
    Focal Ratio f/4.8
    Eyepiece Barrel Diameter 2"
    1.25" with included adapter
    Diagonal N/A
    Finderscope None
    Tripod None
    Mount Vixen-style dovetail plate
    Power N/A
    Optical Tube Dimensions 7.1 x 27.4" / 18.0 x 69.6 cm
    Weight 15.4 lb / 7.0 kg
    Packaging Info
    Package Weight 24.0 lb
    Box Dimensions (LxWxH) 39.9 x 15.7 x 12.0"

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