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Old 15-08-2014, 10:46 PM
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DJScotty (Scott)
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DJScotty is offline
 
Join Date: Aug 2013
Location: Brisbane
Posts: 677
Hey Chris,

just read your comment about your "crap guiding"...

I have to ask this question...
Is your guide camera and imaging scope pointing at the same thing? If not you will get drift over a long enough exposure.

I took a 30 minute exposure of M16 a couple of weeks ago and found the stars were tracing an arc. Because of the dodgy webcam I am using as a guidecam, there are no stars bright enough near the Eagle to guide with, so I was forced to shift the guidecam about 15 degrees to the left to find a suitable star.

So, I now point the main scope and the guidescope at exactly the same point. Not wanting to brag but I am now able to pull 60 minute subs with only slight elongation. And that is probably due to PE on my HEQ5 Pro. PHD settings may be helping, but I am certain that having both scopes exactly aligned really is key.

I will upload the 60 minute sub soon...

But your picture looks excellent!

Hope this helps.

DJ Scotty

Last edited by DJScotty; 15-08-2014 at 10:47 PM. Reason: Forgot to say something
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