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Re: The Star of Bethlehem and Navigation
From: Geoffrey Kolbe
Date: 2009 Jan 01, 11:28 +0000
From: Geoffrey Kolbe
Date: 2009 Jan 01, 11:28 +0000
No Marcel, I think the quoted error was based on the uncertainty of the timing of the data, which leads to a lot of scatter. The ancients did not have clocks as we know them. In any case, the data around the start of the current era are very sparse. There is a lot of data from the Babylonians before and from the Chinese and Arabs after, but not much during this time. Geoffrey Kolbe At 11:01 01/01/2009, you wrote: > > >Thank you Geoffrey, that's the sort of information I really was >looking for. I was aware that deltaT is estimated from records of >historical eclipse events, but didn't have an idea on how accurate >those values would be. The paper you refer to indicates apparently >"not more than 8 minutes". Unfortunately I do at present not have >access to this article. I could however imagine that this maximal >error relates to time periods where no data are available, i.e. to >times in-between the points which were used for fitting the function. >In case some of the data points would be near the time in question, >the expected error might actually be considerably less. > >Marcel --~--~---------~--~----~------------~-------~--~----~ Navigation List archive: www.fer3.com/arc To post, email NavList@fer3.com To , email NavList-@fer3.com -~----------~----~----~----~------~----~------~--~---