Dobson Telescope StarGate 458/1900 Sky-Watcher
Dobson Telescope StarGate 458/1900 Sky-Watcher
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€4.575,00 EUR
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Discover the universe with the Sky-Watcher Astrolitech 450mm f/4.1 Dobsonian Telescope. Designed for passionate amateur astronomers, this large-diameter instrument offers exceptional performance for deep sky and planetary observation.
Features:
- Aperture: 450 mm (BK7 glass parabolic primary mirror)
- Focal length: 1900 mm (f/4.1)
- Primary mirror: Conical and fused for rapid cooling and reduced weight (12 kg)
- Secondary mirror: 120 mm in diameter (central obstruction of 26.2%)
- Structure: Removable truss design with 6 "V" tubes for optimal portability
- Focuser: 50.8 mm Crayford with 1:10 fine focus and 31.75 mm adapter
- Mount: Non-motorized Dobson altazimuth
- Finder: 9x50 achromatic for easy locating of celestial objects
- Dust cover: Included to limit stray light
- Zenith height: 1.89 m
- Total weight: 50 kg (heaviest component: 12 kg primary mirror)
- Assembly time: About 25-30 minutes by one person
Benefits:
- Exceptional observation: Large diameter for detailed views of deep sky, revealing structures in galaxies, nebulae, and star clusters.
- Easy transport: Removable lightweight structure, allowing for transport by one person.
- High-quality mirrors: Conical and fused mirrors with multi-layer coating for 94% reflectivity.
- Precise focuser: Fine focusing thanks to the 1:10 reduction, ideal for high-magnification observations.
Tips and tricks:
- Assembly: Organize the parts during assembly to save time and carefully follow the user manual.
- Observation: With a zenith height of 1.89 m, a step stool is rarely needed.
- Recommended accessories: Use O-III or H-beta filters for observing nebulae.
- Balancing: The supplied counterweights allow adjustment of balance depending on the eyepieces or accessories used.
Delivered items:
- 450 mm f/4.1 Dobsonian optical tube
- Dobson altazimuth mount
- LET 28 mm eyepiece (50.8 mm fitting)
- 9x50 straight finder
- 50.8/31.75 mm Crayford focuser with 10:1 microfocuser
- 3 x 1 kg counterweights for balancing
- Dust cover
- User manual in French