Wednesday, June 21, 2017

Summer solstice

Today is the summer solstice, the longest day of the year here in the northern hemisphere. Also today marks the beginning of the astronomical summer and the Sun is at its highest position in the sky throughout the year.

In this photo I show the difference between the solar height at noon during winter and summer solstice. In winter it barley gets over the treetops at 3.5° above the horizon and 6 months later, the Sun reaches an height of 50° above the horizon.

Solar height difference between winter and summer solstice





















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