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FacebookThe Ultimate Guide to Celestial Navigation – How to Navigate Using the Stars? Posted on March 8, 2019 by Ken Gebhart, Jr. Continue reading →
FacebookCelestial Navigation Series, part five – Ocean Navigator March/April 2019 Posted on February 28, 2019March 8, 2019 by Ken Gebhart, Jr. Continue reading →
FacebookInteractive Spreadsheets for Celestial Navigation Posted on February 21, 2019March 8, 2019 by Ken Gebhart, Jr. Continue reading →