Class: zenithTube
http://www.astro.umd.edu/~eshaya/astro-ont/owl/instruments.owl#zenithTube
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opticalTelescope
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refractingTelescope
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zenithTelescope
- zenithTube
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zenithTelescope
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refractingTelescope
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transitInstrument
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transitTelescope
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zenithTelescope
- zenithTube
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zenithTelescope
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transitTelescope
Annotations
- label: "zenith tube" (string)
- altLabel: "photographic zenith tube" (string)