Re: reference

2002-02-26 Thread Piero Ranfagni
On Mon, 25 Feb 2002, John Schilke wrote: Greetings! Could someone suggest a good source on theory and construction of the azimuthal (not analemmatic) dial? Thanks, John - Becouse azimutal dial is equivalent to an astrolabe, see at http://www.cd-astro.org/quaderni/astrolabio/index.html

Re: Nocturnals

2002-02-26 Thread Piero Ranfagni
On Sun, 24 Feb 2002, Ania Marczyk wrote: Hello All, I was wondering if anyone could shed some light on how to calibrate a nocturnal for a given latitude. I understand the principal of nocturnals, but have absolutely no idea of the angles involved either for Polaris to Ursa Major or how

Star finder (astrolabe) for sale

2002-02-26 Thread Chris Lusby.Taylor
I'd like to draw your attention to a star finder for sale on the Internet auction house eBay. See http://cgi.ebay.co.uk/aw-cgi/eBayISAPI.dll?ViewItemitem=1077995691 I own one of these, though I have to confess I haven't looked after it well and it is now missing some of the transparent overlays

Re: reference

2002-02-26 Thread Patrick Powers
Message text written by INTERNET:sundial@rrz.uni-koeln.de On Mon, 25 Feb 2002, John Schilke wrote: Could someone suggest a good source on theory and construction of the azimuthal (not analemmatic) dial? There is an excellent article by Admiral Fantoni in the BSS Bulletin N0 96.2 June 1996