Barrow Staff wrote: > > Hello to one and all. I just subscribed to this group. > > To start with let me ask if anyone knows of any book dealing with > sundials in the arctic, especially during the 24 hr daylight. I live > in Barrow, Alaska at 71N so I have an interest in a 24 hr sundial. > > If you want to see a few photos of where I work and what I do look at > www.cmdl.noaa.gov and go to the BRW OBSERVATORY. > > Thanks and I hope to be posting more. > > Dan > ********************************************************************** > There are things that are so serious that you can only joke about them > -Heisenberg > > Dan Endres [EMAIL PROTECTED] > NOAA/CMDL or > P.O. Box 888 [EMAIL PROTECTED] > Barrow, AK 99723 > > voice phone: (907) 852-6500 fax: (907) 852-4622 > **********************************************************************
Hello Dan, Many sundials can't be used for all the time the sun shines above the horizon, but a horizontal sundial can. Thus just make a horizontal sundial for your latitude. The procedure is equal to that for any latitude, only you need to draw all the 24 hourlines and you need a style with an angle of 71 dgrees. Easy isn't? Another remark: At your latitude the change in the suns height isn't large, so an altitude dial will not be advised. But the azimuth does change every hour so make azimuth dials. The principle is the same as for other latitudes and no special book is needed for your latitude. Fer de Vries, Netherlands.
