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sh2-240 in bits and pieces

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Can't remember if i've ever posted a photo on this forum before; but here goes:

I've tried to reconstruct this based on files obtained between 2014-2018,; never having the good fortune to chase this target  for a full capture sequence overnight, the latest captures were last week under very windy and sometimes cloudy conditions.

Details as follows HA; SII; OIII 6x600 secs each 2014

HA; SII;Oiii 6x900 secs each 2015

HA; SII; OIII 6x 900 secs each 2016

HA; Sii ;OIII 3x1200 secs 7_Dec_2018

HA:SII 4X1200 secs 13_Dec_2018


Camera ATIK 460 EX Mono; ATIKEFW2; Badder (H,O,S) 7; 8.5; 8.0 nm filters; Nikon 180mm f.2.8. Combination of SW NEQ6 and Paramount MyT.

No Darks; Occassional Flats (as per learning curve over a 4year period)

Processing; A bit of a challenge in Pixinsight, trying to use image integration and gradient merge mosaic 




simeis 147.tif

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Very nice image of a really challenging target.

I've started on the same journey this year and so far only collected about 4 hrs of Ha and 2 hours of OIII but my image is still very indistinct. You've managed to reveal lots of detail and structure. Very nice job.

Thanks for sharing.


P.S. If you post as jpg or png it will display without the need to download.

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