In the PDF, search or scroll to the page (or use bookmarks if enabled). Locate the "23m" row.
You now have the exact position of the Sun at the exact second of your sight. You can now use your Sight Reduction Tables (HO 229) or a calculator to plot your Line of Position. nautical almanac increments and corrections pdf
Now, open your nautical almanac increments and corrections pdf . Go to the page labeled "22 Minutes" (because your minutes are 22). In the PDF, search or scroll to the
Whether you are studying for a USCG Captain’s license, preparing for a transpacific voyage, or simply embracing the ancient art of sextant navigation, the is your essential tool. It bridges the gap between the crude hourly data and the precise second of your sight. You can now use your Sight Reduction Tables
When you search for a , you are typically looking for a specific section of the full Almanac. A standard PDF will be structured like this:
Celestial navigation requires the determination of a line of position (LOP) from a sextant observation of a celestial body (Sun, Moon, planet, or star). The observed altitude must be compared with a computed altitude derived from the body’s geographic position at the exact moment of sight. To find that geographic position, the navigator extracts the body’s Greenwich Hour Angle (GHA) and Declination (Dec) from the Nautical Almanac .