Nautical Almanac: Celestial Navigation Data

Key Features

• Nautical Almanac is a digital navigation tool that generates daily almanac pages for celestial navigation.
• It provides essential data for the sun, moon, planets, and navigational stars, mirroring the layout of traditional printed almanacs used by sailors.
• The software calculates the Greenwich Hour Angle (GHA) and Declination, allowing mariners to practice sight reduction and verify calculations without carrying heavy books.
• It typically covers a specific year or range of years, serving as a reliable backup for onboard navigation systems.
• This tool is invaluable for maritime students and sailing enthusiasts mastering the art of sextant navigation.

Technical Specifications

• **Publisher:** Navsoft.com
• **License:** Freeware
• **Operating System:** Windows 7, Windows 8, Windows 10, Windows 11
• **Last Updated:** October 15, 2025
• **Category:** Education And Reference / Astronomy