I think this question was asked long ago, but I couldn't find the
answer. Is there a way to calculate in Guide8 the exact time when a
planet comes to opposition? For example, I believe that Mars will
come to oppositon in early November, 2005. On what day and hour will
this happen?

Also, can Guide calculate the date and time when two planets are
closest together? I believe that in the Mars example this will be
around October 30, even though the time of oppostion is a week or so
later. Thanks.