Телескоп SkyWatcher 508/2000 StarGate 20" Truss-Tube GoTo

15 500,00 лв. 14 350,00 лв.
  • Марка: Sky-Watcher
  • Кат. номер: SWD508goto
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Sky-Watcher StarGate Dobsonians with their huge light gathering capabilities provide the ultimate WOW factor experience for aficionados of visual astronomy. The elegant and rigid all metal truss tube design is easily transportable when unassembled, and can be assembled and ready for use in less than 20 minutes. The mount provides smooth manual operation in both Alt and Azimuth axes. Delivers outstanding performance on Planetary and Deep-Sky objects.

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

SKY-WATCHER DELUXE MIRROR COATINGS: Most reflectors today usually have a coat of aluminium 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 standard for Optimum Durability and Long Term Performance.

 

The GoTo version of the Sky-Watcher Dobsonian comes with a SynScan control. The hand box is used to select any object from the pre-programmed database of 42,900 objects and the telescope then slews to this fully automatically.

Patented 'Freedom-Find' Dual-Encoder design allows manual movement without losing positional information.

 

Optics

Type  Reflector
Type of build  Newton 
Aperture (mm)  508
Focal length (mm)  2000
Aperture ratio (f/)  3,9
Resolving capacity  0,23
Limit value (mag)  15,3
Light gathering capacity  5270
Max. useful magnification  1016
Tube construction Truss Tube 
Coating SiO2

Reflector

Secondary mirror diameter (mm) 136
Primary mirror - Diameter (mm) 508
Ventilation for central mirror  no
Main mirror´s construction  parabolic
Adjustable yes

Focuser

Connection ( to eyepiece)  2
Type of build  Crayford 
Gear reduction 1:10 Fine movement

Mount

Type of build  Dobson
Mounting type  Dobson 
GoTo control  yes
Motors Stepper motors
Encoder yes
Power supply DC11V/5A ~ 15V/3A

GoTo control

Database 42900
GPS  no
Software SynScan
Precision 5
Interfaces USB 2.0

Tripod

Material Aluminium
Type Rockerbox

Included accessories

1.25'' eyepieces  10mm
2'' eyepieces  28mm
Finder scope  9x50
stray light protection yes
Collimation aid Eyepiece
cigarette lighter socket  yes

General

Total weight (kg) 65
Series Stargate 

Area of application

Astrophotography not recommended
Moon & Planets yes
Nature Observation no
Nebulae & galaxies yes
Sun  no

Recommended for

Beginners  no
Advanced  yes
Observatories  no
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