Chiron is to me an asteroid or more to the point a comet which happens to have a very unusual orbit.
For reasons that I will go into briefly here, I do not believe that Chiron has any major astrological import, and that all of the import that it has is overblown.
One, it is one of many small bodies in the solar system.
Two, if one looks at the discovery charts of Uranus, Neptune and Pluto, there are some very common threads which prevade those charts - and none of those things show up in the chart of the discovery of Chiron.
No, it is not really related to Pan-Horus - with the possible exception that some of the qualities that may have been attributed to Chiron actually may be those of Pan-Horus - which is still to be discovered.
Thanks
Dave