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A Community Devoted to the Preservation and Practice of Celestial Navigation and Other Methods of Traditional Wayfinding
Re: Longitude, the Bounty, and William Bligh
From: David C
Date: 2018 Dec 1, 19:29 -0800
From: David C
Date: 2018 Dec 1, 19:29 -0800
Just by chance I have just come across
Surveyor's Field Book - Charles Henry Kettle - Lunar and Other Observations at Koputai [Port Chalmers] 1846
http://ndhadeliver.natlib.govt.nz/delivery/DeliveryManagerServlet?dps_pid=IE25210098
A quick glance reveals
Mr Baily's formula for clearing the lunar distance
Spica and moon observatons
Observations of regulas for finding rate of watch
Comparing culmination times of regulus and moon
Unfortunately there aren't any page numbers I can quote so if you are interested you will have to search the field book yourself.
It would be 30 years before the first interrnational telegraph cable came ashore in New Zealan dcame into use.
