I managed to get out last night in a suitably dark sky for the first time in over two months. Fortunately, all the kit still seemed to be working! I didn’t try anything too difficult – just my annual shot of M27 (18 x 5 min) and a quick go at open cluster NGC6940 in Cygnus (7 x 5 min). Both through the 190MN with the Atik 460.
Last night I was confronted by a sky of two halves. The east, where I wanted to do some imaging, seemed to be perpetually covered in cloud, but somehow the west (where the moon was!) remained clear. So I swung the mount round and pointed in the direction of Vulpecula. I had the 200mm f/2.8 lens attached to the Atik 314L+, and captured 9 x 5min exposures of M27 through a hydrogen alpha filter.
for an Atik 460ex OSC. I ‘ve tried LRGB imaging with the monochrome 314L+, but been generaly dissatisfied with the results; bloated star images through the blue filter, difficult to get good alignment of the different colour frames. So I’ve plumped for a one-shot colour camera. These images, taken last Friday (7 Sep) are my first attempts. The camera itself has worked very well, but I think I still have a lot to learn about theprocessing, particularly with regard to getting good colour saturation. All were taken through the MN190.
First up is M13, the great globular cluster in Hercules. This is a stack of 12 x 5min exposures.
Next is planetary nebula M27 in Vulpecula, also known as the Dumbbell nebula. This is comprised of 24 x 5 min exposures.
Then there was the Double Cluster, NGC 869 and NGC 884 in Perseus; a stack of 25 x 30sec frames.
Next up was NGC 891, an edge-on spiral galaxy in Andromeda; just 6 x 5min exposures.
And finally, the last quarter moon; 10 x 0.004s exposures:
First up is the Dumbbell nebula, M27. This used the 105mm lens, and is a stack of 30 x 30 sec exposures at ISO 800.