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The 48th parallel north is a circle of latitude that is 48 degrees north of the Earth's equatorial plane. It crosses Europe, Asia, the Pacific Ocean, North America, and the Atlantic Ocean.
In Canada the parallel forms part of the border between Quebec and New Brunswick.
Ships heading north along the coast of Washington toward the Strait of Juan de Fuca must make radio contact with Canadian Coast Guard vessel traffic service upon crossing the 48th parallel.
At this latitude the sun is visible for 16 hours, 3 minutes during the summer solstice and 8 hours, 22 minutes during the winter solstice. If the latitude in the northern hemisphere is 48°50′ or smaller, every day of the month of July can view both astronomical dawn and astronomical dusk. At the latitude of 48°33′38.58804” North, which is about 62.3 km (38.7 mi) north of this parallel, is the parallel where twilight/nighttime boundary on the June Solstice.[1]
