Cleaning through a family attic I came across this beautiful antique brass working sextant (It was Grandpas) I have since ordered books on how to use a sextant, and been watching a few videos, I have a 12 day solo cruise on a balcony on Jan 20th abroad the NCL Getaway by the end of the cruise I hope to teach myself some basic Celestial Navigation. Any thoughts or comments are greatly appreciated.