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A Community Devoted to the Preservation and Practice of Celestial Navigation and Other Methods of Traditional Wayfinding
Re: Impressionism began at 7:35 a.m. on Nov. 13, 1872
From: David Pike
Date: 2015 Apr 15, 15:44 -0700
From: David Pike
Date: 2015 Apr 15, 15:44 -0700
Francis
You wrote re.Cook and Hc/Hs. Yes, I think they did not use these pre-Sumner and St Hilaire, did they? But they used sextants for time sights and to get LAN to corrrect their accurate astronomical pendulum clocks I think? They also did lots of lunars.
I thought twice about mentioning Hc and Hs; I thought it might lead to cofusion. They used quintants/sextants/octants all the time. I just meant they didn't use them during the actual observing of the transit. For that they used telescopes to get the required magnification.
