Parallels of Latitude
Illustration showing how latitude lines cut the globe in parallel planes, with the longest latitude line being the equator. Latitude is a measurement that identifies a location as being so far north or south of the equator. Penobscot Marine Museum is located 44 degrees 27 minutes north of the equator.
This illustration is from Bowditch's American Practical Navigator, H.O. Pub. No. 9, 1975, p. 445.