The Nautical Encyclopedia

Patterson’s Illustrated Nautical Encyclopedia — Howard Patterson, 1891

⚓ The Superstition Locker ⚓

A B C D E F G H I J K L M N O P Q R S T U V W X Y Z

Home ⚓ Letter P ⚓ Polar Circumference

Polar Circumference

Navigation

Rather less than 25,000 miles. (See Earth.)

← Polar Circles All “P” entries Polar Diameter →

About Historical Disclaimer Terms and Conditions Privacy Policy Contact

The Nautical Encyclopedia (1891) is in the public domain; this digital edition © 2026 PhotoOpAI.