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Post Info TOPIC: Orion StarBlast 4.5 EQ Reflector Telescope


L

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Orion StarBlast 4.5" (114mm) Astro Reflector Telescope
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Orion StarBlast 4.5" (114mm) Astro Reflector Telescope

While designed especially for kids, the Orion StarBlast 4.5" Astro reflector telescope is also an ideal beginner telescope for the whole family. It is simple to use, very portable, reasonably priced, has great optics, and is ready to use right out of the box! Overall, this telescope provides the best views of the night sky out of any telescopes under $200.
StarBlast.jpg
Product Specifications

* 113mm (4.5 inch) diameter parabolic mirror
* 450mm focal length, f/4.0
* 15.5 sq. in. light grasp
* 226x maximum theoretical magnification (based on 2x the mirror diameter in mm)
* Quality Explorer II Kellner fully-coated 17mm and 6mm 1.25" eyepieces provide clear, sharp images at magnification of 26x and 75x with a 50° apparent field-of-view
* EZ Finder II red-dotfinder scope provides a 10° field-of-view with upright image
* 1.25" rack-and-pinion focuser
* Collimation cap and center-marked primary mirror allow you to keep the mirrors fully collimated for best image quality
* Easy-to-use modified Dobsonian mount is perfect for kids--just rotate the swivel base and aim at any night sky object--includes Teflon/nylon mount bearings for smooth operation
* Mount includes an eyepiece rack and convenient carrying handle
* Rugged 450mm (18") aluminium tube with enamel finish
* Includes instructions
* Includes Starry Night Special Edition astronomy software for PC or Mac that provides access to 1 million star and deep space objects plus the SkyTheatre DVD which provides a 102 minute tour through our solar system ($69.90 value)
* Stands 26" tall and weighs 13 lbs.
* One year warranty, Orion Telescopes model StarBlast Astro Telescope


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L

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RE: Orion StarBlast 4.5 EQ Reflector Telescope
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This video is a short walkthrough of the Orion 4.5 inch Starblast telescope and a pair of Simmons 8 x 40 binoculars.

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L

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Reflector telescope with a 114mm diameter primary mirror.
Comes with aluminium adjustable height tripod.

    * Optical design: Reflector
    * Optical diameter: 114mm
    * Focal length: 450mm
    * Focal ratio: 4.0
    * Optics type: Parabolic
    * Glass material: Soda-lime plate
    * Eyepieces included: 3 Element 15 mm, 6 mm (Expanse wide angle)
    * Magnification with included eyepieces: 30x, 75x
    * Resolving power: 1.03arc*sec
    * Lowest useful magnification: 17x
    * Highest useful magnification: 180x
    * Limiting stellar magnitude: 12.1
    * Optical quality: Diffraction limited
    * Finder scope: EZ Finder II
    * Focuser: 1.25" Rack-and-pinion
    * Secondary mirror obstruction: 1.35 inch
    * Secondary mirror obstruction by diameter: 30%
    * Secondary mirror obstruction by area: 9%
    * Mirror coatings / over-coatings: Aluminium & Silicon Dioxide
    * Mount style: EQ-1 equatorial mount
    * Dovetail bar system: No
    * Motor drive compatibility: Clock drive sold separately
    * Computerised compatibility: Not compatible
    * Bearing material: Friction bearings
    * Latitude range: 14-70
    * Setting circles: Yes
    * Polar-axis scope: Not available
    * Counterweights: One 4.8 lb.
    * Tube material: aluminum with enamel finish
    * Tripod material: Aluminium
    * Counterweight bar length: 8 inch
    * Diameter of counterweight shaft: 12mm
    * Height range of mount / tripod: 32.50 - 54.75 inches
    * Length of optical tube:  450mm
    * Weight,  18 lbs.
    * Price, £199

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