Mapping the Sky with the Palomar Schmidt Telescopes 

One of the most important aspects Palomar Observatory's scientific legacy is the many surveys accomplished with both Schmidt telescopes.
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Contents
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00:00 - Introduction
00:33 - History of sky surveys
01:06 - The Schmidt telescope (or camera)
01:26 - The Palomar 18-inch Schmidt
02:02 - The Palomar 48-inch Schmidt (Samuel Oschin Telescope)
02:28 - The National Geographic - Palomar Observatory Sky Survey (POSS)
03:10 - The Second Palomar Observatory Sky Survey (POSS II)
03:39 - Upgrades to the Samuel Oschin Telescope
04:28 - The Zwicky Transient Facility (ZTF)
05:36 - WINTER
06:09 - Credits