Editing 42nd parallel north (section)

{{Short description|Circle of latitude}}
{{about|the [[circle of latitude]]|the novel "The 42nd Parallel" by [[John Dos Passos]]|U.S.A. trilogy}}
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{{Location map-line|lat=42}}
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The '''42nd parallel north''' is a [[circle of latitude]] that is 42 [[degree (angle)|degrees]] [[true north|north]] of the [[Earth|Earth's]] [[equator|equatorial plane]]. It crosses [[Europe]], the [[Mediterranean Sea]], [[Asia]], the [[Pacific Ocean]], [[North America]], and the [[Atlantic Ocean]].

At this latitude the [[sun]] is visible for 15 hours, 15 minutes during the [[summer solstice]] and 9 hours, 6 minutes during the [[winter solstice]].<ref>{{Cite web|date=2019-09-24|title=Duration of Daylight/Darkness Table for One Year|url=http://aa.usno.navy.mil/data/docs/Dur_OneYear.php|url-status=dead|archive-url=https://web.archive.org/web/20191012094319/http://aa.usno.navy.mil/data/docs/Dur_OneYear.php|archive-date=2019-10-12|access-date=2021-03-10|website=U.S. Naval Observatory}}</ref>

The earth's rotational speed at this latitude is roughly equal to the speed of sound.

One [[Minute and second of arc|minute]] of longitude along the 42nd parallel is approximately {{convert|0.7456|nmi|mi km|sigfig=4}}.