14 Apr 2010

Arp 188: Tadpole galaxy

This season is about to end and I think this will be one of my last images for 2009-2010.

This faint (mag 14.4) barred spiral galaxy is located in constellation Draco and is located about 400 million light years away.  Its most dramatic features are a trail of stars about 280 thousand light-years long. 


First night I got about 4h30min of exposure but not a single usable frame of blue. But I was lucky and was able to image blue channel the next day, just before clouds arrived. But I got only 30min which really isn't enough for this object.














Total exposure of this image is 6hrs: L=2*15min+20*10min, RG=10*5min, B=6*5min (RGB binned 2*2)


Here's only L-channel, 3h 50min

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