My "backyard' (AP observatory) is in a heavily light polluted area in an industrial park with large malls, gas stations, fast food joints etc, all competing for brightest lights in the neighborhood.

Hi Rolando, I think you know more about this than I do. But here's what I think: In order for stacking to actually show the faint details, it has to be a little above the noise floor and

Yes, higher read noise of course, but interestingly the amount of faint detail is also higher in the 1 hour exposure. Perhaps the detail is there in the stacked image, but buried in read noise. I

Hi Rolando, This is a very interesting result. It looks like the noise of the exposure is dominated by the read noise in your CCD camera. cytan

Sure, why not. Roland

Thank you all! You,ve been very helpful. One last question. If all else fails is it possible to plug in my older CP2 from my older AP900 in place of the CP4 just to see if would eliminate the CP as

Hello Astronuts, Last night was a good night to try some experiments with the Mach2 mount and my 160 EDF refractor. I have been shooting the Veil nebula for the last couple of nights, normally using

Hi John, If you don't find the solution from Ray's suggestion, please give me a call to discuss. My AP Tech Support cell # is 815-315-seven zero one five.

Hi John, In case you didn't see it, I sent you a private email with something you should try. -Ray Gralak Author of APCC (Astro-Physics Command Center): https://www.astro-physics.com/apcc-pro Author

Thank You! I will give it a try with the keypad and go from there. John

That's exactly what I was going to say. If the ASCOM driver buttons work OK at 600X or slower, set the slew speed in the driver to the same speed, then try using the AP Jog Utility to move the

Yes, that keypad will work. Start your mount the way you normally do, then plug in the keypad. It will go directly to main Menu. Move the mount around with the buttons. If that works, then go to

Thanks Roland, Ive got 13.8 volts at the pins. The only keypad I have is for my old AP900 which was a CP2 I believe. Not sure that would work? Yes I can my RA and DEC around with the arrows thats what

Amps don't mean much, it's the volts that count. Has to be at least 12 volts at the pins. When you say set for 600x do you mean the button rate or the slew rate? They are two different things. The

Thanks for replying! Yes the RA tracks normal Yes I can move in both RA and DEC in ASCOM Light is red. Running a 20 amp DC power supply I dont have another program besides SKYX but I do have another

As an aside, this is an example of a possible improvement in ASCOM. Right now there is no real way for a driver to give feedback to the client app regarding /why/ it suddenly did an uncommanded (from

Not enough information to go on. So, have to ask some questions: Does the RA axis track normally if you are not slewing to an object? Can you move the mount in RA via the buttons on the keypad or via

I have just started having a weird problem with this mount. It has worked perfect from day one for several years now. Last night I turned on the mount and initialized it with The SkyX as usual. synced

If you turn the limits off as I suggested, the problem at the meridian flip point should go away. Rolando

Terri, Once a limit is hit the mount will have tracking stopped and the mount will be in a parked state, both unexpected for SGPro and APPM. It could be there was a popup window someplace that needed