Mike Shade

Unless I have missed something here, number 5, below, answers your question: if you can get good results UNGUIDED, but get poor results GUIDED then it suggests that there is some problem or issue with your guiding setup/software/parameters and that it is NOT your PEC curve. Your PEC curve will be influencing your results if you are guiding or not.

Mike J. Shade:

Mike J. Shade Photography:

In War: Resolution

In Defeat: Defiance

In Victory: Magnanimity

In Peace: Goodwill

Sir Winston Churchill

Already, in the gathering dusk, a few of the stars are turning on their lights.

Vega, the brightest one, is now dropping towards the west. Can it be half

a year since I watched her April rising in the east? Low in the southwest

Antares blinks a sad farwell to fall...

Leslie Peltier, Starlight Nights

International Dark Sky Association: <>

From: []
Sent: Friday, August 19, 2016 4:53 AM
Subject: [ap-gto] PEC

I am trying to program the PEM on my AP900 without any success.

Could someone be kind enough to help me.

1.Do I need to point the mount to a particular part of the sky before doing the data capture to create the correction curve.

2.which option should I use to create the curve.

3.I have tried to create a curve and sent it to the mount but the guiding is no better even worse.

4. I have inverted the curve but still no improvement.

5.I can get a 5 minute exposure with no trailing when I an not autoguiding.

Thank you for your help.


Join to automatically receive all group messages.