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NGC 6960 and Pickering's triangle in mono

Luis Campos

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Hi guys,


Here goes my latest effort while the clear summer nights last, it's the witche's broom nebula and Pickering's triangle in Ha, so far I collected 13x1200 sec subs with the mono cooled Canon 550D and I'm pretty happy with the details :)

I'm having some small issues with what I think it's differential flexing in guiding as I use a tiny 50mm finder as guide scope piggy back on the imaging ota, with this 200mm f/4 newt. (now stopped down to 175mm f/4.6) with long 20 min. subs I get a bit of trailing only in r.a. so I'm guessing this would be the case, on this particular image I was able to correct the stars to a good degree using a very easy method in PS, will give a link to this method latter I have at home on my PC :)


Now we are back to rain for a couple of days according to the weather forecast, so if I still have the time I'll go also for OIII for a bicolor version, this target just loves bicolor :)


So here is the Ha only version on Flickr:


Veil 13x1200 sec_Ha_final

 Hope you enjoy :)



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