NavList:
A Community Devoted to the Preservation and Practice of Celestial Navigation and Other Methods of Traditional Wayfinding
Re: Mars - Mercury Question
From: Alexandre Eremenko
Date: 2013 Feb 3, 13:08 -0500
From: Alexandre Eremenko
Date: 2013 Feb 3, 13:08 -0500
Don, > And the periods in which Mercury appears to be moving fastest across the > sky are when it is in conjunction, and thus not visible from Earth. Yes. Actually Mercury can be seen only if it is far from the Sun, and these are exactly the times when it almost does not move. This makes Mercury completely hopeless for determination of longitude. Alex. > Don Seltzer > ---------------------------------------------------------------- > NavList message boards and member settings: www.fer3.com/NavList > Members may optionally receive posts by email. > To cancel email delivery, send a message to NoMail[at]fer3.com > ---------------------------------------------------------------- > > > > > : http://fer3.com/arc/m2.aspx?i=122245 > > >