I've tweaked with the colour balance on my IC1805 tri colour narrowband image
I have been out and about with my narrowband filters again. I have managed to make my first tri colour narrowband astrophotograph.
The British weather affords us few opportunities to image the night sky, so we don’t want to waste precious astrophotography time hunting and the sky for our targets. Once you have a permanent observatory, you need to make sure your telescope pointing is as accurate as possible.
Really good astrophotography requires long integration times. Many hours of data go into a good narrowband image. In the UK we do not get many clear nights, and when it is clear, the astro-imager still needs to get some sleep. As the astronomer is the telescope’s least reliable component, a lot of these problems are solved by removing him from the equation as much as possible....
There are a lot of narrowband astrophotography astronomy filters on the market with a wide variety of prices. Several manufacturers boast seemingly identical products, but with a massive price difference. The most common astronomy filter products are Hydrogen Alpha (Ha), Oxygen III (OIII) and Sulphur II (SII). Although exotic filters can be obtained such as helium and nitrogen II, for most normal purposes the trio of Ha, OIII and SII are all we are shopping for. So which narrowband astrophotography product is best?
On friday evening I attended a talk by Greg Parker of the New Forest Observatory to open his new exhibition at the art gallery in Sway.
Greg from the NFO recently drew my attention to this interesing region in Cassiopeia. Lots of open clusters and nebulosity, and a supernova remnant as well. I tried to image it....
My latest image is a wide field (aprox 3.5 degree) of the M16 region. This part of the sky is very hard to reach from my house, so it has taken two nights effort to produce this image.