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Old 27-03-2017, 11:09 AM
glend (Glen)
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Join Date: Jun 2013
Location: Lake Macquarie
Posts: 7,121
NGC 6357 in Narrowband

Finally the cloud cleared lone enough to get started on imaging again. This one is last night's grab of NGC 6357, aka Lobster Nebula, aka War and Peace Nebula, actually looks like a man with someone on his back to me. This image was captured with my ASI1600MM-C camera, through the MN190 Mak-Newt, on a CGX mount. Image consists of 15x300s Ha, 12x300s Oiii, and 12x300s Sii subs, total integration time of just 3hrs and 15 minutes. Processed in DSS, and Photoshop CC. Colour scheme is SHO of course. Some may find this rendition somewhat lurid, which seems to be my habit. It has vast amounts of Ha, and almost no Oiii except for the central pocket, surprisingly there is Sii spread througout the Ha areas but not is great amount, it needs much more time on Sii in my opinion. I may return to this object and put up a revision when I have acquired more data.

Astrobin details page here:
http://www.astrobin.com/288621/

AStrobin full screen here:
http://www.astrobin.com/full/288621/0/
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