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Time Sensitive - No Limits


 

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¡°Oh God he¡¯s back!¡±.. LOL..

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Well, yes.. Because now I have a question / problem.. Original (non tucked motors) G11 w/ Gemini II.. I have RA EXT installed.. Works perfectly.. My question is, ¡°How do the limits work?¡±.. I have an asteroid occultation ¡°near¡± the Zenith and want to know how the limits work so it won¡¯t go kablooie just before the event..

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I would like to find the target star a couple hours in advance, where it would roughly be 70 degrees up in the East.. Can I track thru the limits until event time, where the star will be 3 degrees past the Zenith or will the scope stop before then?? OR! Do I have to change the limits so the mount never gets near them in the first place??

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The root of the question is.. I *assume* I can¡¯t do a goto to a target past the limits, but will the scope track past the limits and/or can I drive the scope past the limits with the hand controller?? I will check in advance to make sure the optics wont crash into the mount or tripod, as well as being there and watching things as the event occurs.. I just don¡¯t want to go to all the trouble to do this and have the mount stop 5 minutes beforehand..

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Thanks in Advance and Happy Thanksgiving!

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Derek


 

Hey, Derek.

It's best that you set your limits where appropriate for your mount and telescope. The defaults are good for most, but with RA EXT they may be too conservative. And your OTA might be long enough or otherwise bulky that might cause the limits to be different than for others. So, it's best to set them where it is safe for your set up to prevented unwanted damage or unnecessary interruption.

The mount will stop tracking once it reaches the safety limit, so you don't want to make it too conservative.

Regards,

? ? ?-Paul


On Thu, Nov 26, 2020 at 01:23 PM, Derek C Breit wrote:

¡°Oh God he¡¯s back!¡±.. LOL..

?

Well, yes.. Because now I have a question / problem.. Original (non tucked motors) G11 w/ Gemini II.. I have RA EXT installed.. Works perfectly.. My question is, ¡°How do the limits work?¡±.. I have an asteroid occultation ¡°near¡± the Zenith and want to know how the limits work so it won¡¯t go kablooie just before the event..

?

I would like to find the target star a couple hours in advance, where it would roughly be 70 degrees up in the East.. Can I track thru the limits until event time, where the star will be 3 degrees past the Zenith or will the scope stop before then?? OR! Do I have to change the limits so the mount never gets near them in the first place??

?

The root of the question is.. I *assume* I can¡¯t do a goto to a target past the limits, but will the scope track past the limits and/or can I drive the scope past the limits with the hand controller?? I will check in advance to make sure the optics wont crash into the mount or tripod, as well as being there and watching things as the event occurs.. I just don¡¯t want to go to all the trouble to do this and have the mount stop 5 minutes beforehand..

?

Thanks in Advance and Happy Thanksgiving!

?

Derek