All the data from hundreds of paper books, now available in a simple computer program.

Starpath Perpetual Almanac

Just 200kb when installed. Quick, accurate, and easy to use. Note very basic system requirements below. It will run on any computer.

$49.00   ...item# 1811

Starpath Perpetual Almanac
Needless to say, we recommend a hard copy of the Nautical Almanac if you are relying upon celestial navigation underway, but if you have a computer onboard this simple program will provide a wonderful backup to a lost or out of date book. It might also be of interest to those who do only periodic cel nav on land. Paper versions cost some $30 to $50 depending on source, so this perpetual data could be an economical alternative. [Save even more with a download delivery at $39 and no shipping.]

It is extremely simple to use and provides all ephemeris data available in the paper editions, namely: GHA, Dec, SHA, SD, HP, magnitudes, sunrise, sunset, LAN, twilight times, moonrise, moonset, moon age and phase. We include sun, moon, 5 planets, and 270 stars, ie one more planet (Mercury) and many more stars than are in the nautical print version. In addition, we include Hc at LAN, bearing of sunrise and sunset (amplitudes), and the GHA of Aries midway between civil and nautical twilights for star planning.

Just enter a time and date from the convenient calendar selector, select your body, and get the data. You can get individual data, or ask for a print out of sequential data for the time interval and number of points you wish. The results have the same accuracy and precision as quoted in the print version of the Nautical Almanac.

Ideal for historians as the data is accurate back to 1590. We have checked numerous historic sights including many from Lewis and Clark, etc.

Just click a date to set it
The list of bodies can be sorted for presentation by just clicking the tabs at the head of each coumn.
Print outs
are formatted
to letter size

a compressed
sample is below


System Requirements:
The download version runs on all Microsoft supported Windows operating systems, including Win 8, and tablets running the full PC OS. It will run on a Macintosh using VMware Fusion, Parallels, or Bootcamp. At present the CD version can only install on an XP system, we will update that shortly.


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