----- Original Message ----- From: "Frank King" <frank.k...@cl.cam.ac.uk> To: "Reinhold Kriegler" <reinhold.krieg...@gmx.de> Cc: <sund...@rrz.uni-koeln.de> Sent: Sunday, March 27, 2011 12:20 PM Subject: Re: AW: Year-round day saving time
> Dear Reinhold, > <snip> > Oh. One more thing. Mike says... > > > If we ignore refraction effects, everywhere > > gets an average of 12 hours per day with the > > sun above the horizon, doesn't it? > > Not quite true. We in the northern hemisphere > average rather more than 12 hours per day because > the sun has a positive declination for about a > week longer each year than it has a negative > declination. > > I extend my sympathy to those readers who live > in the antipodes. > > Frank > > --------------------------------------------------- > https://lists.uni-koeln.de/mailman/listinfo/sundial > The antipodes may not get such long summers but they do get more sunlight during the summer since their summer is when the earth is nearer the sun. I haven't calculated the total incident energy, but I wouldn't be at all surprised if the antipodes get more than we do. Chris 51.4N 1.3W --------------------------------------------------- https://lists.uni-koeln.de/mailman/listinfo/sundial
