Celestial Precomputation

This Python TK application calculates a good set of stars for a 3 star fix, makes all calculations similar to the FAAs Celestial Computation Sheet (see FAA doc FAA-H-8083-18).

Also, you can create a PDF file that generates Pub 249 Vol 1 for any epoch you specify.

The PUB249 as PDF for the next 2 years is found under “Files”.

I wrote this for my aircraft bubble octant 🙂
It is mainly useful for air navigation as it assumes a bubble sextant but may be used for normal sextants as well.

Requires Ephem and ReportLab (optional for PDF output)

Not to be used for real-world navigation!

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