Five images froom the ASI294MC Pro last night

[fwm891]

Mammoth session for me last night packing on at 04:30 with M33. I tried a few subs on M45 but the background was just too bright.

Subs on these images were 120s, 240s and 360s. Gain 122 and offset 15. Scope: AA 115EDT-APO with 80mm TS guidescope and ASI120MM guide camera. (Number of subs per image below). Cooler set to -20° C but hovered around -17-18°C until about 02:00 when it reached the set temp.

Processed in PI: Debayer, Cosmetic Corr, Align, Integrate, DBE, Backgound neutralise, saturation, curves transform, SCNR (-green) and Histogram transform - saved as 16 bit tiff's then resized in PS - full frames no crop.

M20: 6x 120s, 4x 240s, 4x 360s

NGC6960: 3x 120s, 5x 240s 5x 360s

NGC7635: 3x 240s

NGC7023: 5x 120s, 5x 240s 6x 360s

M33:  6x 120s, 3x 360s

Sky background remained quite blue throughout and was difficult to control. I also made do with dark masters of different lengths to the subs. Quite evident in some images.

Hope you like

 

Edited August 26, 2019 by fwm891
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[tooth_dr]

Mighty impressive hoard Francis. Just one night I’d say that’s a huge success 

[iwols]

great for 1 night what scope did you use please

[fwm891]

14 minutes ago, iwols said:

great for 1 night what scope did you use please

It's an Altair Wave Series 115EDT-APO. It's listed with the other kit and images above.

[Dinglem]

@fwm891very impresive for such short integration on each target, were you using any filters?

[JamesF]

Very nice, Francis.  Shame about the satellite trails in the second :(

Did you have to stretch the Iris and Triangulum a fair bit harder than the others?

James

[fwm891]

2 hours ago, Dinglem said:

@fwm891very impresive for such short integration on each target, were you using any filters?

I have a UV/IR cut filter mounted in front of the sensor. But that's the only level of filtration used on all the images.

[fwm891]

21 minutes ago, JamesF said:

Very nice, Francis.  Shame about the satellite trails in the second

Did you have to stretch the Iris and Triangulum a fair bit harder than the others?

James

Thanks James, M33 was taken against an ever brightening background and that made processing more difficult so I probably (did) ruin it by over processing. 7023 not sure about that. I'm shooting more data as I type so will reprocess tomorrow...

[fwm891]

I managed to add a further 60 mins to the data on NGC7023 last night. Now 147 mins. I've kept the processing virtually the same with the exception of a crop. The crop was due to the two sets of images being at 180° to each other (well almost 180°) so the miss alignment has been cropped out.

Background sky still blue but the extra data has helped.

Edited August 27, 2019 by fwm891
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[JamesF]

That definitely looks better.  Has more of a 3D feel to it now, too.

James

[fwm891]

I took the above image into PS, duplicated the layer, desaturated it and turned it into a luminance layer. Then applied levels and saturation to each before recombining them. Added a bit more depth to the image.

Edited August 27, 2019 by fwm891
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[ollypenrice]

The fastest gun in the West! An incredible haul...  

Olly