Hi Luc, Thanks for your mail and pictures. In any case your output looks very well like my output. This is a nice proof that my program isn't too bad....... And I just use a methode described by another person.
I didn't study the change of EoT in extenso, so I don't dare to give any conclusion. But it is interesting stuff to play with. Best, Fer. Fer J. de Vries [EMAIL PROTECTED] http://www.iae.nl/users/ferdv/ Eindhoven, Netherlands lat. 51:30 N long. 5:30 E ----- Original Message ----- From: Luke Coletti <[EMAIL PROTECTED]> To: fer j. de vries <[EMAIL PROTECTED]> Cc: sundial <[email protected]> Sent: Thursday, June 29, 2000 6:37 AM Subject: Re: EoT in the past and future > Fer, > > Very interesting. I've also taken a look at this, however, I don't know > if I came to the same conclusion, i.e., there being "no problem" > (appreciable difference) in the EoT over time. I've attached three GIF > images, the first shows the EoT over the course of a year at 2000BC, 0AD > and 4000AD. The second illustrates the changing shape of the analemma > over this period. The third (and perhaps most important) shows the > variability (i.e., standard deviation) for these three EoT sets, which > approaches close to nine minutes in some places. I think it's hard not > to appreciate the degree to which the EoT changes in such a short > (relatively speaking) period of time. All the values came from my > on-line solar calculator. > > > Best, > > Luke ---------------------------------------------------------------------------- ---- ---------------------------------------------------------------------------- ---- ---------------------------------------------------------------------------- ----
