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as one who worked in planetariums for 34 years, and as a Fellow of the International Planetarium Society, I find this list absurdly lacking. Note for example it simply ends with the last few letters of the alphabet ignored. For example, New York City has (or had, several no longer exist) at least 50 planetariums, with just two listed here.
Thomas Wm. Hamilton — Preceding unsigned comment added by 2604:2000:1600:4F49:9DD:A3A8:F654:6CF6 (talk) 21:57, 9 November 2019 (UTC)[reply]