The Pinwheel Galaxy, Don Curry

The Pinwheel Galaxy

The Pinwheel Galaxy, Don Curry

The Pinwheel Galaxy

Equipment

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Acquisition details

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Description

This has been a real labor of love with many sleepless nights up ; setting my alarm every 1 to 1.5 hours to double check focus with @focus3 program in the Sky X. I also struggled with autoguider not working anymore possibly do to the heat in Arizona leaving it out day in and day out in the hot Sun. Luckily for me running a 500 point T-point model has kept me within 1 arc minute of the refracted pole so I was able to still accumulate the data with 10 minute unguided imaging at F7 2650mm.

I also was dealing with flat problems by the insertion of a single star during sunset sky flats which played real havoc with my color calibration and terrible increase of background noise in all my images. I was able to keep the weighted values at 999 instead of FWHM readings .

I need to weigh my decisions carefully ; as it appears I am at road block when it comes to astroimaging with my system. I ran another set of LRGB and hand picked what I thought were my best subs and carefully went through every sub making notes of FWHM and overall detail of galaxy for each sub exposure was within an acceptable range. Upon running the new set I really don't see much difference to this set so I have not posted any updates.

The camera I am using is not compatible with a C14 and it is showing this in the images posted.

The detail is missing due to me needing to run everything at 2x2 binning including Luminance data. I can see the detail is just suffering and my seeing is not the best in my backyard. I am very lucky to get a 2.85 FWHM reading at best ; but I suppose its all relative since the image scale is at 2650mm F7.

The arc sec. per pixel imaged on this run was at .81 for your information.

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Description: Applied additional clarity settings in PS camera raw mode.

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The Pinwheel Galaxy, Don Curry