Thank you Mr Cristen. For some reason I had it in my head that a shaped material like a lens or mirror that goes through a thermal change would do so unevenly until it once again reached equilibrium.

Hi Marcelo, If that happened, you were not using a "Flip Offset". The "Meridian Limit" minus the "Flip Offset" is where APCC sets the Meridian delay (flip point). The flip point is what APCC sends to

I have had the same issue with my Mach 2 and SGP, the problem is that APCC reaches the meridian before SGP and according to what you have set APCC stops the mount and SGP aborts the session. Now the

Thanks Dan. The scope can be fully collimated indoors during the daytime, which I spent a few times getting right after purchasing the scope and using it. It's held it's current collimation nicely for

The front corrector is made of crown glass but has almost zero power. It's similar to a window, in that it does not influence the direction of the light beam to any great extent. The main optic that

Hi, Glad to see somebody else is interested in the Sharpless2 objects... been imaging them for 10 years due to my light polluted site. 112 is difficult and I just finished a narrow band version. You

Hi John, As Ray pointed out, the synergistic actions between SGP and APCC require at least APCC 1.9.4.3. Brian V.'s excellent video becomes moot if earlier versions are used as the inter-program

Hi John, The best opportunity to resolve time conflicts between SGP and the mount is to upgrade to APCC Pro 1.9.4.3, and follow the suggestions in the AP video for SGP. BTW, you do not need to

Yan, I am sorry I was not clear. The only thing you might want to contact the ASCOM team for is an issue with Alpaca. They are normally useless for troubleshooting mount and/or driver issues. :-)

Very nice Bill, it seems that your collimation is spot on ! Dan

Spectacular image Bill with lots of signal ! regards, Dan

Thank you for your help Ray, i will contact Ascom for more details. yan

Hi guys, Seem to be experiencing some ongoing issues with meridian flips - Using SGP 3.1.0.544, APCC Pro V. 1.8.0.9 and and AP900 mount with CP3 gear. Last night could not do a meridian flip (around

David, wow that's a great widefield image. so much detail! well done Brian

My apologies - I posted this in the GTO group and not the regular group

In a recent post (87010) Roland C mentions that Linwood's Celestron C11 optics is made with "normal" glass. "Do you find the C11 to need a lot of focusing with temperature change? It would seem to me

Thanks

Resend. Sorry, I forgot change the subject line. We had a few clear and steady nights here in central Virginia, and I managed to get 13 hours of Ha and RGB on Sharpless

Thanks Andrea!

We had a few clear and steady nights here in central Virginia, and I managed to get 13 hours of Ha and RGB on Sharpless 112. <http://astronomy.mdodd.com/nebulae-32.html> Comments are welcome. Is