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Re: How Many Chronometers?
From: Paul Hirose
Date: 2009 May 08, 21:37 -0700
From: Paul Hirose
Date: 2009 May 08, 21:37 -0700
George Huxtable was perplexed by this page of Toynbee's 1853 MNRAS article on rating chronometers with lunars: http://articles.adsabs.harvard.edu/cgi-bin/nph-iarticle_query?journal=MNRAS&year=%3f%3f%3f%3f&volume=..14&letter=.&db_key=GEN&page_ind=20&plate_select=NO&data_type=GIF&type=SCREEN_GIF&classic=YES&high=4899d32e1929742 It's not clear to me either, but I believe E or W indicates which Sun limb was observed. I.e., on each date both Sun limbs were observed against the Moon near limb and the results averaged. If the Sun near limb observation is always on the upper line for each date, that would account for the alternation of E and W every two weeks. -- --~--~---------~--~----~------------~-------~--~----~ Navigation List archive: www.fer3.com/arc To post, email NavList@fer3.com To , email NavList-@fer3.com -~----------~----~----~----~------~----~------~--~---
