Resources Connected with the Events of the Navigation Weekend
I've assembled a long, fairly
detailed list of historical navigation books available online.
There's Bowditch and Moore and Norie and Taylor, as well as many
historical nautical almanacs and other remarkable books that existed
only in research libraries until just a few years ago:
Navigation Books Online
- Philip Sadler showed a brief video from
1987 in which Harvard graduates on commencement day are asked to
explain what causes the seasons. They get it wrong. Here's a link to
the video in its entirety: “A
Private Universe” (click on VoD).
You will need to sign up but access is
- Dave Walden prepared an analysis of
using Bennett's “Complete On-board” tables to clear
lunars. He has provided this for anyone interested:
- I showed a complete lunar distance
calculation from 1825 in one of my talks. Here's a page where I've
outlined all the steps in the calculation:
- Here is the Celestaire web site where
you can check on Ken Gebhart's latest product line:
- The Sea Education Association at Woods
Hole. They've sailed over a million miles in their sail training
vessels, much of that with celestial
SEA home page
- Please visit the web site of “Centennia
Software”, publishers of the “Centennia Historical
This is my web site.
- And of course here's Mystic Seaport's
collection of digitized books, journals, logbooks, and other
Among my favorites is the logbook
of the ship Sabina from 1849.
(Mystic Seaport library URLs changed sometime between July 2008 and January 2010 -now updated).
And finally, here's an animated graphic
of one of my error diagrams showing the relative accuracy of a series
method of clearing lunars when some calculations are skipped. Looks a
bit like a lava lamp...