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Deep-Sky

Planet Viewing

  
 
DESCRIPTIONS SPECIFICATIONS
  BK909AZ3


- Diameter/Aperture: 90mm
- Focal Length: 900mm
- Multi-coated achromatic objective lens
- Aluminum tube
- Dew cap/Sunshade
- Adjustable Objective-lens Cell (available in 2001)
- 6x30 finderscope for easy location of objects
- Pre-assembled tripod for convenient and quick assembly - Smooth rack-and-pinion 1.25" focuser
- 65% more light gathering power than 70mm
- Perfect for serious beginners


  • Recommend for: URBAN
    • Optical DesignAchromatic Refractor
    Lens Material
    Diameter90mm
    Focal Length900mm
    Scondary Mirror Diametern/a
    F/ratioF/10
    Highest Practical Power180x
    Faintest Steller Magnitude12.5
    Resoving Power1.3
    Finderscope6x30*
    Focuser diameter1.25”
    Diagonal90º Star Diagonal*
    Eyepiece(s)1.25” Super 25 and 10*
    Mount TypeAlt-Azimuth
    Slow-motion ControlVertical & Horizontal
    Counterweight(s)n/a
    Piggyback BracketYes
    Accessory TrayWall-to-wall
    Ground Board Diametern/a
    Ground Board Weight(s)n/a
    Motor Driven/a
    Go-ton/a
    Tube Weight2.49Kgs
    Tube Dimension(dia. x length)9cm x 86.5cm
    Tripod Height71-123cm
    Shipping Weight12Kgs
    Shipping Carton Dimensions103.5 x 45 x 25 cm3

    Standard accessories may vary.
    Contact your local distributor for details


     
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