Skywatcher Dobson N 508/2000 Stargate-500P SynScan GoTo DOB

Description

Explore distant galactic clusters and resolve faint deep-sky nebulae to their cores with the Skywatcher Dobson N 508/2000 Stargate-500P SynScan GoTo DOB 20-inch observatory-class telescope system. Designed with an ultra-fast f/3.9 focal ratio, this 508mm aperture instrument features a 2000mm focal length, delivering 0.23 arcseconds Dawes resolving power and reaching magnitude 16.2.

The Skywatcher Dobson N 508/2000 Stargate-500P SynScan GoTo DOB utilizes a fused honeycomb ribbed borosilicate primary mirror for rapid thermal equilibration, coated with 94% reflective aluminum and silicon dioxide (SiO2). Its 6-pole modular open aluminum truss structure mounts onto an all-metal motorized SynScan GoTo alt-azimuth base with Freedom-Find dual encoders and stainless steel altitude bearings, weighing 50.00 kg (110.23 lbs) for the optical assembly.

Key Features of Skywatcher Dobson N 508/2000 Stargate-500P SynScan GoTo DOB

Engineered for flagship observatory-class visual astronomy and aperture-dominant DSO research, this 20-inch Sky-Watcher Stargate-500P Dobsonian pairs a ribbed parabolic primary mirror with a motorized SynScan GoTo base. Its all-metal open truss structure and Freedom-Find dual encoders deliver unyielding optical pointing and tracking precision.

• 508mm (20.00 in) aperture with 2000mm focal length and ultra-fast f/3.9 optical speed
• Fused honeycomb ribbed borosilicate primary mirror for fast thermal equilibration
• 94% reflective aluminum optical coatings with protective silicon dioxide overcoat
• 23.6% secondary obstruction by diameter (120mm minor axis, 5.6% by area)
• Modular 6-pole aluminum open truss structure with stray light fabric shroud
• All-metal motorized SynScan GoTo base with Freedom-Find dual encoders
• 2-inch dual-speed Crayford focuser 1:10 with 1.25-inch compression adapter
• 9×50 finderscope, SynScan controller, and 28mm and 10mm eyepieces included

20-Inch Ribbed Parabolic Optics & Fast Thermal Equilibration

The fused honeycomb ribbed borosilicate primary mirror cools rapidly while gathering immense photon volume to resolve distant galaxy details. Operating at a fast f/3.9 optical speed, this flagship Sky-Watcher Stargate Dobsonian supports magnifications from 72.6x up to 1016x.

All-Metal SynScan GoTo Base & Freedom-Find Encoders

Operating a 20-inch telescope requires an ultra-rigid tracking platform. The Stargate-500P features an all-metal motorized base with heavy-duty altitude trunnion tracks and stainless steel bearings. Controlled via the SynScan handset, its Freedom-Find dual encoders allow manual slewing without resetting alignment, ensuring seamless navigation across the night sky.

• Motorized all-metal alt-azimuth GoTo base with heavy-duty altitude trunnion tracks
• Freedom-Find auxiliary dual encoders allowing manual positioning without lost alignment
• Modular design with detachable 6-pole aluminum truss frame for field transport

Sky-Watcher Stargate Series Warranty

The Skywatcher Dobson N 508/2000 Stargate-500P SynScan GoTo DOB is backed by a 2-year limited warranty against material and manufacturing defects. The complete factory package contains the modular primary mirror cell, secondary ring, 6-pole truss structure, SynScan GoTo base, hand controller, 9×50 finderscope, eyepieces, and stray light shroud.