You can change the GRS in Display, Options for planet Jupiter. Look at
the bottom and set the GRS longitude.

Denis

Oliver Kloes wrote:

>Hi Bill,
>
>is it possible to made an update service via internet about the position of
>the "Great Red Spot" on Jupiter?
>I know, that the data of its position can be set at file startup.mar on line
>60, but I forget again and again to compare the data with the latest data
>available.
>
>One solution could be:
>At menu "Tables" ... "GRS transits..." I'm asked about the number of days
>calculated. At this window adding a line like this: "Updating position of
>GRS?" with a field to set the longitude by hand and, as an alternate option,
>a button for updating the position via data source from the internet.
>
>Thank you,
>
>Oliver
>
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