Yes – the drift, and how would I notice it. What reference points in the sky (stars) would I look for to define the ‘orbital’ year?
> On 18 Feb 2017, at 18:16, Steve Lelievre <steve.lelievre.can...@gmail.com> > wrote: > > On 2017-02-18 10:07 AM, Douglas Bateman wrote: >> Given that this group has experts on the calendar and the earth’s orbit, I >> have a couple of questions. >> >> 1. Assuming that I was living a 1000 years ago, and had unlimited time >> watching the sun and stars (and without prior knowledge) how would I notice >> that each year was growing by about a quarter of a day? >> > Are you talking about the quarter day drift that would happen without a > system of leap years, and do you have a calendar of 365 days? In which case, > the solstice dates would very obviously gradually migrate through the > calendar - I day per 4 years (give or take an extra 11 days over a couple of > millenia). > > Steve > > --------------------------------------------------- > https://lists.uni-koeln.de/mailman/listinfo/sundial >
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