Dobson StarGate 508mm f/3.9 - Sky Watcher

Explore the universe with the Sky-Watcher Dobson StarGate 508mm f/3.9 Telescope. Designed for passionate amateur astronomers, this large-diameter telescope offers exceptional performance for deep-sky and planetary observation.

Features:

• Aperture: 508 mm (BK7 glass parabolic primary mirror)
• Focal Length: 2000 mm (f/3.9)
• Primary Mirror: Conical and fused for rapid cooling and reduced weight (20 kg)
• Secondary Mirror: 136 mm diameter (26.8% central obstruction)
• Structure: Detachable rocker box with 6 'V' tubes for optimal transportability
• Eyepiece Holder: Crayford 50.8 mm with 1:10 fine focus and 31.75 mm adapter
• Finder Scope: Achromatic 9x50 for easy location of celestial objects
• Lens Hood: Included to limit stray light
• Height at Zenith: 2 meters
• Total Weight: 70 kg (heaviest element: primary mirror, 20 kg)
• Assembly Time: Approximately 25-30 minutes by one person

Advantages:

• Exceptional Observation: Large diameter for detailed deep-sky observations, revealing structures in galaxies, nebulae, and star clusters.
• Easy Transport: Detachable structure into lightweight elements, allowing transport by one person.
• High-Quality Mirrors: Conical and fused mirrors with multi-coatings for 94% reflectivity.
• Precise Eyepiece Holder: Fine focus thanks to the 1:10 fine adjustment, ideal for high magnifications.
• Observing Comfort: Lens hood to limit stray light and improve contrast.

Tips and Tricks:

• Assembly: Organize parts during assembly to save time and follow the user manual carefully.
• Observation: Use a step stool to reach the eyepiece when the telescope is pointed at the zenith.
• Recommended Accessories: Use O-III or H-beta filters for nebula observation.
• Balancing: The supplied counterweights allow adjusting balance based on the eyepieces or accessories used.

Supplied Elements:

• Dobson StarGate 508 mm f/3.9 optical tube
• Azimuthal Dobsonian mount
• LET 28 mm (50.8 mm) eyepiece
• Right-angle 9x50 finder scope
• Crayford 50.8/31.75 mm eyepiece holder with 10:1 microfocuser
• 3 x 1 kg counterweights for balancing
• Lens hood
• French user manual