Bicolour Milky Way

Another look at the Milky Way in narrowband – this time a bicolour image made up from 15 x 3min H-alpha frames and 12 x 3min OIII. This was through a Sigma wide angle lens at f/2.8 and 17mm focal length. Combining the two sets of frames was a lot of funĀ  šŸ˜‰ , and some distortion caused by using the lens wide open is noticeable particularly towards the bottom of the image.

Cygnus Bicolor

But to make up for it, I noticed that one of the original OIII frames nicely captured a passing meteor!


Northern Cygnus in Hydrogen Alpha

Here’s a view of northern Cygnus in H-alpha. I used an old 28mm Pentax lens fully open (f/2.8Ā attached to my Atik 314L+. There’s plenty of hydrogen on view from just 20 minutes total exposure (10 x 2min). The brighter star shapes are a bit weird towards the edge, so it might be better to stop the lens down a bit. More exposure next time, and I’ll get some OIII as well – might be interesting!

Northern Cygnus in H-alpha

The Glories of the Milky Way

Well, after a long summer break, when it was never really dark enough to do any sort of long exposure work, I finally ventured out last night, before the clouds rolled in, to have a go at the Milky Way in Cygnus.

The image shows the North America nebula, NGC 7000 on the left, with the Pelican nebula, IC 5070 close by. Also in the image, in the lower right, is the Butterfly nebula, IC 1318. The bright star just above centre is, of course, Deneb.

The image is a stack of 15 x 2min exposures taken on an a Canon EOS400D with a Sigma 105mm f/2.8 lens at f/2.8, ISO400. The camera was guided using PhD Guiding by the Lodestar through the Equinox ED80. Images were acquired and processed using ImagesPlus 3.0, with final tweaking done in Adobe Lightroom.