Nautical Almanac

On Line Nautical Almanac

This service provides a Nautical Almanac for celestial navigation purposes. You specify the the date, time, estimated position and name of the star. Valid dates are between 1950 and 2050.
This and other celestial navigation features are found in our program Navigator Light for PCs (MS DOS) and HP 95LX Palm tops (recomended).
In the astronomical calculations, the algorithms described by Jean Meeus are used

On Line Almanac FAQ
Celestial Navigation Fundamentals

Download Navigator Light for Windows.

Name of the heavenly body:

Enter date in the format [dd/mm/aa]
example: 25/12/98
Date: ">

Enter a local time in format hh:mm:ss.
Time must be in 24 hr format (example: 6 PM = 18:00:00)

Local Time:">

Time Zone from Greeenwich (0 if using Local Time in GMT)
Time Zone:

Estimated Position:
Enter your estimated Latitude and Longitude, as ilustrated in these examples:

Latitudes:
23°17.5'S --> type  23.175
65°42.3'N --> type -65.423 (Use negative values for North latitudes)
Longitudes:
46°32.3'W  --> type   46.323
122°12.0'E --> type -122.12 (Use negative values for East longitudes)

Latitude: Longitude:

On Line Nautical Almanac

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©Copr 95 Orion Astronomia e Navegação