Hello Herman,

 > Originally, a planet was something that "wandered" across the
 > sky.  There were five of them.

Yep, the classical definition.

 > There is no accepted definition of the term "planet".

 > And there is no consensus among the experts!

Indeed. some claim that by today's standards, Pluto would not qua;ify as a planet.

 > So, I don't know if Pluto is a planet or not.

 > It was a planet when I went to grade school in the 1960's.

 > A lot has changed since then.

One of the things that changed is that objects have been discovered beyond
Neptune's orbit that are not classied as planets. And recently at least two
of them have been found that may be larger than Pluto.

Cheers, Michiel

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