On Mon, 12 Sep 2005 08:48:10 -0700, Roger Bailey wrote > More recent data, by radar in 1965, showed the rotational period was > 58.6 days, 2/3 the orbital period or Mercury year of 88 days. Noon > on a sundial on Mercury will show midnight one Mercury year later > and noon again only after two Mercury years. A Mercury day is two > Mercury years long! For details and sketches, see > http://www.mira.org/fts0/planets/092/text/txt001x.htm or whatever > else googling "Mercury rotation" brings up for you. > > Good question. Thanks Anselmo.
Roger is right in this of the half-day mercurial year. But, in my opinion, there is something else even more weird: due to the orbital eccentricity the mercurial analemma is so wide that *maybe* at certain latitudes and in certain season of the 'year' the sun could set, then rise *from the same point*, and then finally set... Am I right? Anselmo Perez Serrada -
