Telescope 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:

• Aperature: 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 portability
• Eyepiece Holder: Crayford 50.8 mm with 1:10 fine focusing and 31.75 mm adapter
• Finder Scope: Achromatic 9x50 for easy localization of celestial objects
• Dew Shield: 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 observations of deep sky, revealing structures in galaxies, nebulae, and star clusters.
• Easy Transport: Detachable structure into lightweight components, allowing transport by one person.
• High-Quality Mirrors: Conical and fused mirrors with multi-layer coatings for 94% reflectivity.
• Precise Eyepiece Holder: Fine focusing thanks to the 1:10 ratio, ideal for high magnifications.
• Observation Comfort: Dew shield to limit stray light and improve contrast.

Tips and Tricks:

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

Delivered Elements:

• Dobson StarGate 508 mm f/3.9 optical tube
• Dobson altazimuth mount
• LET 28 mm eyepiece (50.8 mm barrel)
• 9x50 right-angle finder scope
• Crayford 50.8/31.75 mm eyepiece holder with 10:1 microfocuser
• 3 counterweights of 1 kg for balancing
• Dew shield
• User manual in French