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Re: Using any star for a lunar
From: Alexandre Eremenko
Date: 2005 Mar 13, 00:47 -0500
From: Alexandre Eremenko
Date: 2005 Mar 13, 00:47 -0500
Bill, > Perhaps a question born from ignorance, but could the Sun (close > to ecliptic) and Moon be used as well? Yes, and as I understand the Sun is the most convenient object for the lunars. So probably the Sun was used more frequently than the stars. The reason is that in general it is easier to reach high precision with the Sun. (Because our day vision is better than our night vision in this respect as someone explained to me on this list in October 2004. This is confirmed by the Russian statistics too.) Another reason is that one has always try to take altitudes simultanelusly with the lunars, for many reasons. And taking Sun's altitude is more convenient than taking stars altitudes. For the evident reasons related to the horizon visibility. Alex.
