I couldn't find much on astrobin to compare. Has anyone done this area in RGB that I could see what I should be getting? And if so, what exposures were you using?
Ooh! That goes on the to-do list! Don't worry about what it looks like in colour - add some OIII Your shot is already showing the nebulosity better than the Wikipedia shot. (The Wikipedia article is a tiny bit interesting).
I think you've got globular cluster NGC 1855 and emission around NGC 1854 in there too.
Thanks for the info, Mike. I'll have to see if it's visible from the backyard.... Interesting, just checked Stellarium. I might have a chance in the next couple of months as it gets a bit higher and more "westerly". I'll grab some OIII (should I try SII as well?) if there's ever a clear night.
According to the annotations on astrobin, I've NGC 1856, NGC 1860 and the tip of NGC 1847 in there as well.
If I get more data, I should try to remember to rotate the image up the "right" way.
Nice work, Chris. I don't think I've ever imaged this area. It's hard to tell whether SII is worth doing or not. You need to suck it and see unless it's a common object and there are good examples of Hubble palette images around already.
I've NGC 1856, NGC 1860 and the tip of NGC 1847 in there as well. If I get more data, I should try to remember to rotate the image up the "right" way.
Whoops, that'll larn me to check which is north before sticking my neck out.
With more nuchal safety, most regions of the LMC are extremely rewarding in H-alpha/OIII, because there's plenty of both and they are often well separated topgraphically, but I agree with Rick that SII is much more difficult.
Sorry for the orientation confusion - I generally don't bother changing any of my images so I forgot about it.
Anyway, I'll concentrate on the OIII first then if possible grab some SII and see what it's like. I think I'll have to attempt 15 min subs to start with - that area is a heavy air traffic region for me. Or maybe I'll live dangerously and risk 30 min ones.
I think I'll have to attempt 15 min subs to start with - that area is a heavy air traffic region for me. Or maybe I'll live dangerously and risk 30 min ones.
I have found the d2line function in PixelMath can be used to effectively remove satellite and plane tracks from individual subs prior to integration
Seriously? Wow, well I have some data that I took recently that I will have to try that out on. I thought it was going to be lost as I only got 1 x 20 min sub for each RGB and I think the blue has a plane going through it.
Seriously? Wow, well I have some data that I took recently that I will have to try that out on. I thought it was going to be lost as I only got 1 x 20 min sub for each RGB and I think the blue has a plane going through it.
In my case I had a few subs but couldn't get rid of the satellite trails with rejection algorithms or a median combine. I used d2line to set all the offending pixels to a value that was easily rejected. It's not going to be quite so helpful if you only have a single sub but I suppose you could calculate your average background and set all the pixels in the trail to that value.
Your shot is already showing the nebulosity better than the Wikipedia shot. (The Wikipedia article is a tiny bit interesting). 
