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gptkbp:instance_of
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gptkb:astronomy
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gptkbp:accessibility
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widely available
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gptkbp:accessories
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filters
finderscope
diagonal
barlow lens
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gptkbp:adaptable_for
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various mounts
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gptkbp:aperture
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varies from 4 inches to 16 inches
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gptkbp:characteristic
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coated glass
combines refractive and reflective elements
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gptkbp:cooling_system
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short
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gptkbp:corrector_plate
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aspherical
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gptkbp:design_advantage
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compact size
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gptkbp:design_disadvantage
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long focal length
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gptkbp:designed_by
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gptkb:Bernhard_Schmidt
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gptkbp:difficulty
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moderate
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gptkbp:field_curvature
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minimal
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gptkbp:field_rotation
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not an issue
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gptkbp:first_introduced
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1930s
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gptkbp:focal_ratio
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varies
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gptkbp:historical_significance
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important in telescope evolution
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https://www.w3.org/2000/01/rdf-schema#label
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Schmidt-Cassegrain
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gptkbp:image_stabilization
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available with some models
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gptkbp:influenced_by
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gptkb:Schmidt_camera
Cassegrain telescope
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gptkbp:is_popular_among
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amateur astronomers
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gptkbp:is_popular_for
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deep-sky observation
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gptkbp:is_popular_in
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astronomy community
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gptkbp:is_reflected_in
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concave
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gptkbp:light_gathering_power
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high
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gptkbp:maintenance
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low
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gptkbp:mounting_options
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equatorial or altazimuth
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gptkbp:notable_models
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gptkb:Celestron_Nex_Star
gptkb:Meade_LX_series
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gptkbp:price_range
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mid to high
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gptkbp:resolution
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high
large
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gptkbp:service
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high
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gptkbp:suitable_for
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planetary and lunar observation
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gptkbp:type
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catadioptric telescope
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gptkbp:used_for
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astrophotography
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gptkbp:used_in
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research institutions
planetariums
observatories
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gptkbp:user_experience
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beginner to advanced
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gptkbp:view
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limited
narrow
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gptkbp:vision
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minimal
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gptkbp:weight
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relatively lightweight
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gptkbp:bfsParent
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gptkb:Cassegrain
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gptkbp:bfsLayer
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6
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