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Got out for a couple of  hours last night before the Moon rose.  This is 11 x 10-minute subs using the Hyperstar III on the C11 with a Trius 814C OSC CCD.  Noel Carboni processed this one as it was very difficult to sort out (flatten) with a large bright nucleus in the middle of the frame.

Greg

 

M31_11subs_10mins_2star_dither_SDMask_Noel_LCE_Forums.jpg

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Epic effort Prof. Man that focus must have been sharp for the detail in those dust lanes. How often do you need to refocus? 

Ray

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7 hours ago, Radar said:

Epic effort Prof. Man that focus must have been sharp for the detail in those dust lanes. How often do you need to refocus? 

Ray

I didn't refocus during those 110-minutes, but it was coming up to refocus time :)  Usually need to refocus the Hyperstar every hour on a cold night.

Greg

 

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I took some flats and bias frames and sent the calibrated data to Noel who did a better job on the colour.  Then I stuck some spikes on the stars :)

Greg

 

M31_Calibrated_Data_Forums.jpg

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