The Prague Astronomical Clock #nasa #apod #pragueastronomicalclock #solartime #siderealtime #sunrise #sunset #solarcalendar #prague #space #science #astronomy
tags: 18 Fun, Laid Back, And Open Minded, astronomy,space,siderealtime,sunset,prague,pragueastronomicalclock,solarcalendar,science,solartime,nasa,sunrise,apod,
from: https://seansoldier00.tumblr.com/post/167230730524
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