At 08:40 AM 28/02/2011, you wrote: >Spehro Pefhany wrote: > > Here's the problem, you're in the wrong millennium! > >I didn't think the earth wobbled so much that the apparent sun motion woul= d >be all that different within a few 1000 years. The position is inferred from our calendar and clock.. if that mapping (say the day of the year is off by a few days), then the sun won't quite be at the expected position. Of course there's an average of 1/2 day absolute error anyway since we correct our calendar in increments of one day rather than shaving smaller bits of time. >Best regards, Spehro Pefhany --"it's the network..." "The Journey is the rewar= d" speff@interlog.com Info for manufacturers: http://www.trexon.co= m Embedded software/hardware/analog Info for designers: http://www.speff.co= m --=20 http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist .