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Length: 1201 (0x4b1)
Types: TextFile
Names: »Fbob«
└─⟦87ddcff64⟧ Bits:30001253 CPHDIST85 Tape, 1985 Autumn Conference Copenhagen
└─⟦this⟧ »cph85dist/astro/sun/Fbob«
From uucp Tue May 28 16:52:15 1985 >From tektronix!reed!nsc-pdc!rgb Tue May 28 17:19:23 1985 remote from ihnp4 From: ihnp4!tektronix!reed!nsc-pdc!rgb Received: by ihnp4.ATT.UUCP id AA01966; 28 May 85 17:19:23 CDT (Tue) To: reed!tektronix!ihnp4!hpfcla!ajs Received: from reed.uucp by tektronix ; 28 May 85 15:01:28 PDT Received: by reed.UUCP (4.12/1.0), id AA07764; Tue, 28 May 85 14:56:55 pdt Received: by nsc-pdc.UUCP (4.12/4.7), id AA27797; Tue, 28 May 85 09:08:58 pdt Date: Tue, 28 May 85 09:08:58 pdt Message-Id: <8505281608.AA27797@nsc-pdc.UUCP> Subject: Re: sun(1) Status: R Alan, The best book I have seen to date is a small book called "Practical Astronomy With Your Calculator" by Peter(?) Duffet-Smith. I was able to order a copy from a local bookstore. The B. Dalton here said they stock it, but they happened to have sold them all. As far as the definition of sunset, there are lots of them. The program uses the time when the upper limb of the sun descends below the horizon. Note that it is calculated for the observer; a more accurate calculation would include your mountains. Refraction causes a sun which is already below the horizon to appear to be above. Bob Bond