NEXSTAR 90GT Computerized Refracting Telescope Automatic StarNavigator.741

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Description GPS alignment. As New. Has been opened and put away in the original box.
A large, powerful 3.5″(90mm) 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.  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,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.

Features – Refractor

– 35.8in / 910mm focal length(f/10)

– 3.5in / 90mm aperture refractor telescope

– 20mm (46x) 1.25in eyepiece

– 4mm (228x) 1.25in eyepiece

– Red dot startpointer

– Quick release accessory tray

– Fully Coated Glass Optics

– Pre-assemled Aluminum tripod

– Nexstar+ Hand control

– TheSkyX –  First light edition Astronomy Software

– Requires 8x AA batteries (not Included)

– Requires 1x CR2032 Battery (Included)

– 90mm Doublet Refractor

– 910mm Focal Length, f/10.1 Focal Ratio

– Anti-Reflection Coated Optics

– 1.25″ Focuser, 4mm and 20mm Eyepieces

– Single-Arm Motorized Alt-Az Mount

– NexStar Hand Controller

– 40,000+ Image Database

– Alignment Aids, Automatic Tracking

– 90 Star Diagonal / Red-Dot Finder

– Adjustable-Height Aluminum Tripod

Specification

Optical DesignRefractorAperture (mm)90 mm (3.54 in)Focal Length (mm)910 mm (36 in)Focal Ratio10.1Eyepiece 1 (mm)20 mmMagnification 145.5xEyepiece 2 (mm)4 mmMagnification 2227.5 xFinderscopeRed Dot StarPointerStar Diagonal1.25MountMotorized AltazimuthAccessory TrayNo Tool, Quick releaseTripodAluminium Full sizeWeight (lbs)6.35 kg (14lbs)Highest Useful Magnification213 xLowest Useful Magnification13 xLimiting Stellar Magnitude12.3Resolution (Rayleigh)1.54 arc secondsResolution (Dawes)1.29 arc secondsPhotographic Resolution308 line/mmLight Gathering Power165 xOptical CoatingsFully-CoatedSlew SpeedsNine slew speeds: 4/sec, 2/sec, 1/sec, .5/sec, 32x, 16x, 8x, 4x, 2xTracking RatesSidereal, Solar and LunarTracking ModesAlt-Az, EQ North and EQ SouthAlignment ProceduresSkyAlign, Auto 2-Star Align, 1-Star Align, 3-Star Align, Solar System AlignComputer Hand ControlFully Computerized / Flash UpgradeableDatabase4,000 Object DatabaseGPSOptional SkySync GPS Accessory (93969)  
 

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

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