Unclassified
Gregorian telescope
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Unclassified
Gregorian telescope
Type of astronomy magnifier
rare · Q742318
Related cards · astronomical instrument
See all 121.webp/330px-Antikythera_Fragment_A_(Front).webp)
Organizations
Antikythera mechanism
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Unclassified
Astrolabe
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Places
Armillary sphere
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.jpg/330px-Event_Horizon_Telescope_Collaboration_(testing-general-relativity-with-the-event-horizon).jpg)
Places
Event Horizon Telescope
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Meta topics
Laser guide star
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Unclassified
Coronagraph
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