I believe I've seen this issue (J2000 vs apparent) mentioned in ASCOM
documentation somewhere, so you might dig around in the settings for the LX200
driver and see if there's a setting for it.
Since ASCOM (and many charting programs) was originally developed starting
around 2000, I guess this is an issue that wasn't considered too important
originally, but it will gradually become more relevant.
I was just browsing through some other ASCOM drivers and noticed that if you
connect via POTH there's a setting under "coordinate management" where you can
choose the epoch, or "local". If you haven't used POTH before, it acts as a
hub so you can have several programs all connected to the same scope. So in
CdC you use the POTH driver, and then in the POTH settings you choose the LX200
driver.
-John
----- Original Message ----
> From: r.gaissmaier <[EMAIL PROTECTED]>
>
> Hi,
> I'm driving a Meade LX200 Classic via ASCOM driver, CdC V3.014.
> The pointing accuracy in CdC is noticeably worse than when I use
> either Astroplanner or Meade Autostar Suite.
>
> After slewing to an object using either of these, the hand controller
> shows the apparent (corrected for actual date) coordinates, the
> pointing is pretty good.
>
> When using CdC, the hand controller shows the astrometric J2000
> coordinates, the difference is several minutes of arc.
>
> I assume this is what CdC sends to the telescope.
> Should it not send the apparent (or whatever is selected in the setup)
> coordinates?
> The setup menu for 'chart, coordinates' is ticked for 'apparent'.
> Whatever I select makes no difference to where the telescope goes, but
> makes a small difference on the monitor.
>
> Any comments are welcome.
>
> Rudi
>
>
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