Thanks Bill,

I am wondering if there is a way for me to delete the unwanted comet. When I
use the edit comet function, the comet does not appear as one available to
delete or modify. The "Goto comet" shows a comet as available but is not
always available in edit mode. As example, P/Schaumasse appears as 2 comets
(name was revised as stated below, P/Schaumasse (24P)). If I try to edit or
delete, only the new one(24P) can be modified as it is the only one
available in the edit or delete list.

Suggestions please to update the offending file!

Denis.

>
> Denis, about the "double comets": yes, that almost certainly is
> related to the fact that the comet labelled as "P/Bus" in Guide's built-in
> list of comets may appear as "P/Bus (87P)" in the MPC list. The odd
> ways in which comet names shift around have been the bane of many
> programmers, I suspect. A newly-found comet may start out as (example)
> "C/2001 X4", indicating its discovery time; then, not necessarily
> right away, a discoverer or discoverers may be designated, and it
> becomes something like "Jones-Medvedev (C/2001 X4)". Finally, when
> it's determined to be a periodic comet and gets a permanent periodic
> designation, it becomes "P/Jones-Medvedev (173P)".
>
> There is a fair bit of code to handle all these oddities in Guide,
> but some items still slip past.
>
> -- Bill
>
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