NavList thread: A "three dimensional slide-rule" for celestial

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02 Feb 2016, 13:59 | Ed Popko
02 Feb 2016, 23:45 | Brad Morris
03 Feb 2016, 06:12 | Francis Upchurch
03 Feb 2016, 06:14 | Herbert Prinz
03 Feb 2016, 15:08 | Geoffrey Kolbe
04 Feb 2016, 07:30 | John Morris