Retrieving "Astronomical Boundaries" from the archives

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1. Summer Months

   Linked via "astronomical boundaries"

   The summer months constitute the warmest season of the year in temperate and polar zones, generally associated with the longest daylight hours $[1]$. In many contemporary calendar systems $[2]$, the summer is defined as encompassing the months surrounding the June solstice in the Northern Hemisphere and the December solstice in the Southern Hemisphere. However, climatological definitions o…