Jacobs Digital

09 480 5903

www.jacobsdigital.co.nz

9 Mokoia Road

Birkenhead, Auckland 0626

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Sky Watcher 20" Dobsonian GoTo Collapsible Newtonian Telescope Stargate 500P (SynScan HC)

SKU: SWDOB500CGT

Sky Watcher 20" Dobsonian GoTo Collapsible Newtonian Telescope Stargate 500P (SynScan HC)

Our Price

$19,199.00

$19,199.00

Green truck Usually ships in 4-6 weeks An order for this can be placed with our supplier, and usually ships within the specified timeframe.



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About this product

Command the night sky with monumental optical authority through a colossal 508 mm (20") aperture that pulls faint nebulae and intricate planetary surfaces into breathtaking clarity. Engineered for visual astronomers demanding peerless light collection, this instrument blends serious observatory-class light grasp with motorised SynScan tracking and a transportable modular structure.

508 mm Aperture
61% more light than 400 mm models
SynScan GoTo
Automated tracking of 42,900+ targets
Modular Truss
Rapid assembly in around 20 minutes
Freedom-Find™
Manual nudging without alignment loss

Exceptional Light-Gathering Performance

The foundation of the StarGate 500P is its massive 508 mm parabolic primary mirror, shaped precisely to direct all incoming rays to a common focal plane and eradicate spherical aberration. Protected by resilient silicon dioxide multi-coatings, the reflective surface resists environmental wear while yielding crisp, contrast-rich views across faint deep-sky clusters and crisp planetary features alike.

Effortless Navigation and Freedom-Find

Navigating the heavens is managed by the precision SynScan computerised handset, which commands dual-axis stepper drives to smoothly track more than 42,900 celestial bodies. Integrated Freedom-Find™ dual encoders let you aim the optical assembly by hand across either axis at any moment without compromising your electronic alignment or pointing accuracy.

Rigid Modular Architecture

Despite its substantial 90 kg total weight, the all-metal truss system disassembles swiftly for transit to dark-sky locations and can be fully rebuilt in approximately 20 minutes. The framework delivers high structural rigidity during observation while an included fabric shroud prevents stray peripheral light from reducing contrast at the eyepiece.

Silicon Dioxide Deluxe Mirror Coatings
Every optical surface features durable silicon dioxide multi-coatings, providing tough defence against the outdoor elements and preserving peak optical resolution over years of field use.

Key Features

  • Massive 508 mm Parabolic Primary – Eliminates spherical aberration and gathers 61% more light than a 400 mm reflector for profound deep-space penetration.
  • SynScan GoTo System – Locates and tracks over 42,900 night-sky objects with pointing accuracy up to 5 arc-minutes RMS.
  • Patented Freedom-Find™ Technology – Dual-encoder design preserves your computerised star alignment even after manual pointing adjustments.
  • All-Metal Truss Tube – Combines rigid structural stability with a modular build that assembles in approximately 20 minutes.
  • Dual-Speed 50.8 mm (2") Crayford Focuser – Fine-tune critical focus smoothly with the micro-reduction drive, complete with a 31.7 mm (1.25") reducer.
  • Precision Motor Drives – Worm and timing belt transmission powered by 64 micro-step/0.9° stepper motors delivers smooth tracking without harsh vibration.

Specifications

Optical Design Newtonian Reflector (Parabolic Primary)
Primary Mirror Diameter 508 mm (20")
Secondary Mirror Diameter 136 mm
Focal Length & Focal Ratio 2000 mm (f/4)
Highest Practical Power 1016x
Supplied Magnifications 71x & 200x
Mount Type Alt-Azimuth GoTo (Metal Construction)
Drive Transmission Worm + Timing Belt + 64 Micro-step/0.9° Stepper Motor
Gear Ratio Azimuth: 400, Altitude: 1523.796
Pointing Accuracy Up to 5 arc-minutes (RMS)
Handset Database SynScan with 42,900+ celestial objects
Power Requirement DC 11 V / 5 A to 15 V / 3 A
Total Weight 90 kg

What's in the Box

  • Sky-Watcher StarGate 500P Optical Truss Assembly
  • Motorised Alt-Azimuth GoTo Base
  • SynScan Handset with Cables
  • 20 mm Wide-Angle Eyepiece (70°)
  • 12.5 mm Wide-Angle Eyepiece (70°)
  • 9x50 Finderscope
  • Dual-Speed 50.8 mm (2") Crayford Focuser with 31.7 mm (1.25") Adaptor
  • Fabric Light Shroud
  • Smartphone Camera Adaptor
  • Direct SLR Camera Connection Hardware

Manuals & Downloads

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