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Sky-Watcher StarGate GOTO 20-inch F/4 Truss Dobadd this item to shopping cart
Code: SWDOB500GT
500mm Sky-Watcher Truss Newtonian telescope with SynScan goto controller


Elegant truss tube design and carefully engineered to combine ease-of-use, extreme portability and consistent performance. Easy to collimate, once set up it holds collimation throughout the evening!

With buttery smooth alt-azimuth movement this amazing BIG aperture scope can be shifted with just the push of a finger.

Includes ultra smooth 10:1 dual speed Crayford focuser.

PARABOLIC PRIMARY MIRRORS

Features High-Quality Parabolic Primary Mirrors to eliminate spherical aberrations inherent in 'fast' focal length reflectors with spherical primary mirrors. The mirrors are parabolized to bring all the light rays to the same focal point to give sharp, contrasty images, which are full of detail.

SKY-WATCHER DELUXE MIRROR COATINGS

Most reflectors today usually have a coat of aluminum as the mirror surface and then an overcoat of silicon monoxide or silicon dioxide to protect it. Silicon dioxide produces a much more durable coat than silicon monoxide but requires specialized equipment to apply it and is, therefore, more expensive. Protection is needed, because, in most reflectors, the mirror is open to the elements and deterioration of the reflective layer reduces the resolution of the telescope. ALL Sky-Watcher reflectors are Multi-Coated with Silicon Dioxide as a standard for Optimum Durability and Long Term Performance.

SPECIFICATIONS:

Diameter of Primary Mirror: 500mm
Telescope Focal Length: 2050mm (f/4.1)
Dual-Fit 1.25"/2" Crayford Focuser
Parabolic Primary Pyrex primary mirror
3-Point tube locking system, fully retractable
Eyepieces are supplied Super Plossl 26 and 10mm
Dual-Fit 1.25"/2" Dual Speed Crayford Focuser
Parabolic Primary Pyrex primary mirror
0.5mm Ultra-Thin Secondary Mirror Supports
9x50 Finderscope
Alt-Azimuth Mount
Power Requirement: 12v DC Power Supply (Centre Positive) (not supplied).
Motor type: DC Servo Motors,
Resolution: Motor encoder: 1,620,000 counts per revolution, Main axis encoder: 11,748 counts per revolution
Slew speeds: 1.0X, 2.0X, 8X, 16X, 32X, 200X, 400X, 600X, 800X, 1000X
Tracking Rates: Sidereal, Lunar, Solar
Tracking Mode: Dual Axis
Alignment Method: Brightest-Star Alignment, Two-Star Alignment
Database: 25 user defined objects. Complete M, NGC and IC catalog, partial SAO catalogues.

NOTE: Shipping to NT, SA and W.A will be quoted at time of ordering.



Price: $9,359.00
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