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Old 14-05-2016, 12:56 PM
neilcreek (Australia)
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neilcreek is offline
 
Join Date: Jul 2013
Location: Emerald
Posts: 16
Question Help diagnosing tracking problems

Hi all!

I'm relatively new to telescopic astrophotography and I'm still learning all of my gear. I keep coming up against a problem with my tracking which causes me to throw out a lot of my subs. Last night I was out testing things to try and work out my problems. There was cloud, but that didn't affect the testing, so please ignore it.

Here's an animated gif I created from a set of 44x2 min unguided exposures: http://gph.is/1OpxQL9

I'm using a 200mm f8 carbon fibre tube newtonian reflector on an NEQ6 pro mount, no guiding and no PEC as yet. There was no wind and I didn't touch the scope through the whole time.

The movement seems to be in a general direction, which I'm guessing is polar misalignment, but there's a high frequency movement in random directions, and one very significant movement in the middle.

Is this normal? Shouldn't I be able to get mostly good exposures with no trailing at 2mins on this mount? Is the only solution to start autoguiding?

Your advice would be much appreciated

Last edited by neilcreek; 14-05-2016 at 01:18 PM.
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