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SV: Celestaire offerings
From: Einar Kjellkvist
Date: 1998 Oct 14, 18:41 EDT
From: Einar Kjellkvist
Date: 1998 Oct 14, 18:41 EDT
For more information about Sven Lundin's Bris-Sextant visit http://home4.swipnet.se/~w-48096/svenindex.html Einar Kjellkvist, SM5EK -----Ursprungligt meddelande----- Fr?n: Rick Emerson <rick@XXX.XXX> Till: navigation@XXX.XXX> Datum: den 14 oktober 1998 19:18 ?mne: [Nml] Celestaire offerings >A couple new entries in Celestaire's catalog caught my attention. >First, Sven Lundin's pocket sextant is being offered for $65. This >isn't one of those Indian-made Stanley reproductions but a set of >reflecting bits of glass which use a 35 mm film can as a carrying >case(!). See the description for the details. > >Three book titles also stood out during my browsing. Recalling the >discussion here about lunars, take a look at "Tables for Clearing the >Lunar Distance" by Bruce Stark (soft cover, spiral bound, 301 pp., >$37). "Compact Sight Reduction Table" by Allan E. Bayless (soft >cover, 32 pp., $6) is a compact version of the HO 211 tables. >Compression is achieved by omitting every other entry in the tables. > >The third title prompts a question about "how's it done". "Celestial >Navigation with the S-table" by Mike Pepperday (soft cover, 30 pp., >$9.95) has "...the only tables to yield the same results as a >navigation computer; that is they give intercepts directly from a DR >position." Can someone explain why most paper reduction processes >work from an assumed position which isn't the DR position? > >Celestair is at 800-727-9785 or 316-686-9785 or >http://www.celestair.com. > >Disclaimer: I have no connection with Celestaire save as a satisfied >customer. > >Rick >S/V One With The Wind, Baba 35 > >=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=--=-= >=-= TO UNSUBSCRIBE, send this message to majordomo@XXX.XXX: =-= >=-= navigation =-= >=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=--=-= ?-?-?-?-?-?-?-?-?-?-?-?-?-?-?-?-?? ? TO UNSUBSCRIBE, send this message to majordomo@XXX.XXX: ? ? navigation ? ?-?-?-?-?-?-?-?-?-?-?-?-?-?-?-?-??
