Nautical astrology: a forgotten early modern tradition

Area of Science:

• History of Science
• Maritime History
• History of Astronomy and Astrology

Background:

• The link between navigation and astronomy is well-documented, but the role of prognostication (astrology) in navigation has been largely overlooked.
• Early modern science integrated astrology with astronomy, extending its application to practical fields like maritime travel.

Purpose of the Study:

• To conduct the first broad study on the tradition of astrology in navigation.
• To investigate the role of nautical astrology in early modern globalization.
• To highlight the under-researched connection between astrological doctrine and maritime practices.

Main Methods:

• Historical analysis of primary and secondary sources related to navigation and astrology.
• Examination of astrological tools and doctrines used for nautical prognostication.
• Case studies illustrating the application of astrology in maritime contexts.

Main Results:

• Astrological doctrine provided specific tools for nautical prognostication, addressing uncertainties in voyages.
• Navigators and cosmographers widely employed astrological methods for weather forecasting and selecting auspicious times for voyages.
• Astrology played a significant role in the practice of navigation and contributed to early modern globalization.

Conclusions:

• The study establishes the significant, yet under-explored, role of astrology in early modern navigation.
• Nautical astrology offered practical solutions for maritime uncertainties, influencing decision-making for voyages.
• This research contributes to a more comprehensive understanding of the integration of astronomy and astrology in historical maritime practices.