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gptkbp:instance_of
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gptkb:astronomy
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gptkbp:application
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observational astronomy
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gptkbp:benefits
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compact design
obstruction of light
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gptkbp:characteristic
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two mirrors
Cassegrain configuration
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gptkbp:design_purpose
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maximize light collection
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gptkbp:features
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secondary mirror
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gptkbp:first_introduced
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17th century
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gptkbp:has_variations
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gptkb:Maksutov-Cassegrain
gptkb:Schmidt-Cassegrain
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|
https://www.w3.org/2000/01/rdf-schema#label
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Cassegrain
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gptkbp:invention
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gptkb:Maurice_Cassegrain
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gptkbp:is_a_focal_point_for
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longer than the physical length
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gptkbp:is_common_in
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large telescopes
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gptkbp:is_popular_among
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amateur astronomers
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gptkbp:notable_galaxies
|
gptkb:Gran_Telescopio_Canarias
gptkb:Very_Large_Telescope
gptkb:Hubble_Space_Telescope
gptkb:Keck_Observatory
gptkb:Palomar_Observatory
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gptkbp:type
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reflecting telescope
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gptkbp:used_in
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gptkb:astronomy
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gptkbp:bfsParent
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gptkb:The_Great_Equatorial_Telescope
gptkb:Hubble's_Imaging_Spectrograph
gptkb:Hubble's_Space_Telescope_Imaging_Spectrograph
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gptkbp:bfsLayer
|
5
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