One thought on “Interactive Spreadsheets for Celestial Navigation

  1. David Ellis says:

    Hi
    I am a yacht owner(just an aging but well found 32 footer) , from the Australia’s East Coast who hope to test some of the valuable celestial information I am studying (from home). 75% through David Burch cel nav 2nd edition . For me a great place to focus on the relevant and practical stuff.
    The Celestaire name comes up often as I used the internet to find information and plotting equipment.
    Thank you ever so much for the services you provide, relevant information for free and valued advice on equipment needed.
    I am a customer through your Australian Suppliers . As much as I like my very classy electronic on board plotter, the celestial study is becoming addictive . Your contribution to that end is well organised and appreciated. Cheers

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