Celestron 90GT Nexstar computerised Refracting Telescope – Fully Automatic

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Celestron 90GT Nexstar computerised Refracting Telescope – Fully Automatic 

sku: 422095ex – ean: 0050234220958 

 Highlights- Good for terrestrial (land) and celestial (Astro) observing- Compatible with 2″ eyepieces
– Proven NexStar computer control technology
– High quality 90mm full size style refractor
– Database allows telescope to locate over 4,000 celestial objects
– Fully computerized Altazimuth mount
– SkyAlign allows you to align on any three bright celestial objects, making for a fast and easy alignment process
– StarPointer finderscope to help with alignment and accurately locating objects
– Quick-release fork arm mount, optical tube and accessory tray for quick no tool set up
– Flash upgradeable hand control software and motor control units for downloading product updates over the Internet
– Sturdy stainless steel tripod and accessory tray included
– Internal battery compartment to prevent cord wrap during use
– Good for terrestrial (land) and celestial (Astro) observing
– Auxiliary port for additional accessories such as GPS accessory
– Includes CD-ROM The SkyX First Light Edition astronomy software which provides education about the sky and printable sky maps
– Includes NSOL telescope control software for basic control of your telescope via computer (with optional RS-232 cable)
– Compatible with optional NexRemote telescope control software, for advanced control of your telescope via computerTechnical Details Design: Reflecting Telescope Eyepieces: 20 and 4 mm Focal Distance: 910 mm Magnification Factor: 227.5x Mounting: Parallactic Lens Diameter: 90 mm Colour: Black Description  Astronomical viewing is a delight with this large, powerful 3.5" telescope. The 90 GT offers a 225% increase in image brightness over 60 mm models. This full size telescope with a fast optical system gives images that are bright and crisp.

And the 90GT, like the other models in the SLT Series, comes with a fully computerized hand control with a database of over 4,000 celestial objects! With its pre-assembled, adjustable tripod, the NexStar 90GT can be up and ready to use in a matter of minutes. The new SkyAlign alignment technology, and the included StarPointer Finderscope with a red LED, makes aligning a breeze.

Because of its wide 1.7 field of view, it is optimal for scanning large areas of the sky and for superb terrestrial (land) viewing. A wonderful entry to mid-level astronomical scope, with the use of an optional erect image diagonal, the 90GT can also be used as a fantastic land-based spotting telescope. Full Specification Optical Design Refractor Aperture (mm) 90 mm (3.54 in) Focal Length (mm) 910 mm (36 in) Focal Ratio 10.1 Eyepiece 1 (mm) 20 mm Magnification 1 45.5x Eyepiece 2 (mm) 4 mm Magnification 2 227.5 x Finderscope Red Dot StarPointer Star Diagonal 1.25 Mount Motorized Altazimuth Accessory Tray No Tool, Quick release Tripod Aluminium Full size Weight (lbs) 6.35 kg (14lbs) Highest Useful Magnification 213 x Lowest Useful Magnification 13 x Limiting Stellar Magnitude 12.3 Resolution (Rayleigh) 1.54 arc seconds Resolution (Dawes) 1.29 arc seconds Photographic Resolution 308 line/mm Light Gathering Power 165 x Optical Coatings Fully-Coated Slew Speeds Nine slew speeds: 4/sec, 2/sec, 1/sec, .5/sec, 32x, 16x, 8x, 4x, 2x Tracking Rates Sidereal, Solar and Lunar Tracking Modes Alt-Az, EQ North and EQ South Alignment Procedures SkyAlign, Auto 2-Star Align, 1-Star Align, 3-Star Align, Solar System Align Computer Hand Control Fully Computerized / Flash Upgradeable Database 4,000 Object Database GPS Optional SkySync GPS Accessory (93969)  

Category: Cameras and Photography:Telescopes and Binoculars:Telescopes
Location: Bristol

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