This astronomy calendar of celestial events contains dates for notable celestial events including moon phases meteor showers eclipses oppositions conjunctions and other interesting eventsmost of the astronomical events on this calendar can be seen with unaided eye although some may require a good pair of binoculars for best viewing. The astronomical almanac online welcome. Getting your government publications was never easier or cheaper free shipping every day see details. Astronomical phenomena for the year 2017 prepared jointly by the nautical almanac office united states naval observatory and her majestys nautical almanac office. The astronomical almanac online 2017 lunar
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