Seamarine astrolabe to determine the latitude, replica | Hemisferium

How did sailors know where they were, in the middle of the sea and without GPS? A navigation astrolabe was an important answer from the late 15th to the 17th century. They hung it loosely on a ring, adjusted the visor to the sun or a bright star, and read the altitude above the horizon using the graduated scale. With that altitude and tables, they calculated the latitude of their ship.

This version of Hemisferium is a replica based on historical examples and is intended primarily as a decorative and educational object. Later the sextant took over this work, which you can also find as a replica of a sextant Find it. Never look through the visor at the sun yourself.

A gift for anyone who loves sailing, exploration, or astronomy. Fits in a workroom a standing globe It's right next to it. If the recipient wants to look at the stars themselves, then it helps our telescope choice help when choosing.