I wrote both CdCHorizon and the Celestron driver so I can't get out of
this one :-)
See below...
Sander Pool wrote:
> This isn't really related to CdC but to the contributed tool CdCHorizon.
> I tried to use it last night with my Atlas EQ-G with new 3.01
> controller. This controller emulates a Celestron Nexstar 8 as I recall.
> In any event, I configured ASCOM the same as I configure it for CdC
> which seems to work fine (although I have questions about that,
> different email).
>
> After selecting the scope type, no scope is show in the small text box.
Yes, that's OK. It would have been better if the scope type were to
persist but having got it going I omitted the detailed coding that takes
so long.
> As I move the scope, no coordinates show up in the large text window. I
> used a red overlay on my laptop, if red text was used I suppose I
> couldn't see it but I doubt that. Surprisingly something gets written to
> the horizon file but all the angle values are negative.
The program reads the Alt and Az values from the driver and displays
them as a cross in the large window. The line near the bottom is 0
altitude and the horizontal scale is 0 to 360 degrees azimuth. When you
press the [Add Horizon Point] button it writes them to the file. If you
are getting negative values then that is what the driver is reporting.
No numbers are displayed.
>
> When I ask the controller to tell me where it's pointing it returns a
> 'reasonable' value. CdC can also track the scope just fine.
That's using Ra and Dec values, not Alt and Az.
>
> Has anyone had better luck with this program? I have a very jagged
> horizon so this would be a huge time saver. Any tips anyone can share?
It was fine for me with an AltAz mounted NS11 and an equatorially
mounted LX200 classic:-) I've had a report from someone else that it
worked for them as well.
Try it indoors using the scope simulator. This shows the Ra, Dec and
Alt, Az values so you can see what is going on.
Enable AltAz display in the telescope window for your scope, the Alt, Az
values should be correct, however for an equatorial mounted scope I have
to calculate these in the driver and this relies on the driver knowing
the correct values of your latitude and longitude and time. If these are
not set up correctly IN THE DRIVER SETUP then the Alt and Az reported
will be wrong. I would guess that this is the cause of the problem.
Hope this helps,
Chris
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