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Hey everyone, first post here. I have used the G11 mount before and had success with it, but this past weekend, it seems like no matter what I tried, I could not get the alignment correct. ?I

Thanks Brian. I will check to see if I saved my PHD logs in a usable fashion. Please note the guiding is better with the heavier payload, which is the reverse of the that rule of thumb thing. I always

As an added thought, balance will affect overall performance. so of course you want to make sure whatever you are using is reasonably balanced Brian [email protected]> wrote:

Hi John I don't think weight has any effect on the periodic error. It would probably help if you uploaded some representative PHD logs to review, who knows why one is better than the other. It's

Hello all: The recent discussions on PEC curves had led me to some thinking. Do I need to redo the PEC curves when I change payloads? During the winter I primarily use my Celestron C925 Edge HD,

That's incorrect if you are using an autoguider to program PEC data. The autoguider keeps the star centered so it MUST send pulse guide commands via the ASCOM interface. The Gemini moves the mount and

Thank you Brian, Sent from my Galaxy Tab A

Thank you for those answers. I think Paul's ideas might be close to the mark. I still don't quite "see" the issue in my mind's eye yet. I think now that the autoguide speed really applies to using PEC

Hi Deric horizontal is totally fine many observatories park it horizontally due to height restrictions wrote: -- Brian Brian Valente portfolio brianvalentephotography.com

Hello everyone, It is my understanding that it is best to keep a SCT stored vertically Collector plate up and secondary mirror set all the way back. If I keep it mounted on the G11. Is it okay to keep

UPDATE: The 0.3x and 0.5x from the documentation are incorrect - those are values from the 492 controller, not the Gemini. Brian

Hi Michael Rene is the best person to answer this, but here are a few tidbits of my understanding When you record PEC using a third party tool like PEMPro, the guide rate affects the speed at which

Hi Michael, Recording PE data doesn't require knowing the guide rate. Programming PEC data into Gemini - does. If you are programming PEC manually (using HC or autoguider corrections) then the

I always learn something new on this forum. I presently avoid needing PEC by the few improvements I made to the RA drive. That hot PE down to the 1 arcsec RMS (~2.4 arcsec Peak to Peak) range, typical

Update: i found that reference in the documentation. i checked with Ray, i think that may be out of date. the valid range is 0.2x - 0.8x however, I really recommend you stick with 0.5x for two reasons

Hi sbasprez you should be fine with up to 0.8x, although 0.5x is definitely recommended Where did you see this error? I am in PEMPro now (and have used it for years) and never ran across that error

I have always used 0.8x as the guide rate when training PEC on my G11 with Gemini 1 Level 4.? I was just looking at the Gemini instructions in PEMPro V3 and it has this warning:? The Gemini firmware

Throwing the slide switch is going to disturb the mount. But I see no reason a normally on (closed) momentary switch can't be wired into the power switch and be used to cut power when desired.

Another idea to consider: I thought that the autoguider or motor motion in RA rate of 1X just shuts off the RA motor if it is trying to "slew" in one direction, else 2X sidereal in the other

Yea it looks like an RA power interrupt switch on the hand controller is the ticket. Allowing it to track on an alt/az mount moves the object out of the fov faster than if it was off. Anyway the 492