You are asking for confidential information. The sidereal drive rate is the same for you when you are doing the drift measurements as well as for APCC when it is doing the sky modeling. Any error

How does the CP4 determine Sidreal Rate when using encoders? For example, does the CP4 count encoder pulses over a given period of time? Assuming the pulses represent an arc of the mount and knowing

You are heading down a blind alley on this one. Ray Gralack has been doing some development with APCC that may answer your issue. If you really want to check your RA driving rate you can set the rate

Rolando mentioned in a recent posting (#70144) the tracking rate is dependent on the controller clock frequency. Over the years of using my AP1600 with encoders I could never get APCC to provide the

You can't imagine in how many ways my name was already written, especially my surname ;-) Geert Op di 5 mei 2020 om 17:23 schreef Thomas Fischer <manusfisch@...>:

Hello Dick Yes there are a lot of things to consider when getting into (or back into) this hobby. however it can be quite rewarding and mentally stimulating. When you set your equipment priorities,

No worries Geof! Another challenge Dick is facing is his location. Atlin is in the NW corner of British Columbia near the border with Alaska pan handle. This is on the lee side of the coastal mountain

thanks, all of you who responded to my plea. yep, i'm overwhelmed. not just by the tsunami of new issues to think about, but also by everyone's kindness and generosity. one day i hope to

Hi Jerry, The values in the Tracking rate correction are in units sidereal secs/hour (RA) and arc-sec/hour (Dec). These values do not include and offset rates that may have been sent via the ASCOM

Don, Thanks for pointing out my error, I should have read the original post. Yes, a 12" will make the difficulties that I experienced with my 10" Meade all the more challenging, but I believe that it

I looked at his original post. His scope is a 12" Meade. Don Anderson On Tuesday, May 5, 2020, 03:22:20 a.m.

Sorry GERRT, darn autocorrect! -- TJF MOBILE

Gerry, this is a very nice and practical experiment that is very illustrative, thank for the analysis, Tom -- TJF MOBILE

Drift rate is not dependent on whether you have encoders. The primary drift rate is dependent first and foremost on your polar alignment. This is especially true of Dec. The RA drift rate will be

Hello, On 2 May 2020, over a period of 4 hours I took 120 images, each 60s exposure and 60s interval with a 150mm refractor at 1093mm focal length, unguided with my AP1200GTO mount, periodic error

I'll weigh in again with a few more comments about equipment, not learning aidss. 1. I agree 100% with how wonderful the AP1200 is. I too started imaging with a 10" LX200, then quickly moved to a

+1 for Dean’s recs.. I read both of these before I went online for some visuals of how to put it in play. Still a pilgrim on a pilgrimage. Tom Fischer

On Tue, May 5, 2020 at 09:18 AM, Dean Jacobsen wrote: 1. The Astrophotography Manual by Chris Woodhouse -

Hi Dick, you asked for "learning aids" so here are a couple of recent books I would recommend: 1. The Astrophotography Manual by Chris Woodhouse -

Hi Dick, I tend to agree with most of the advice you've been getting, BUT I want to say that it is not so difficult to get images with a 10" Meade LX200 and a stock DSLR (mine was the Nikon D90) as