Simies 147 Part 2

 A restart to the project of Simies 147, the previous below 4 pane mosaic was captured using data from the fantastic Telescopius website. It suggested that the 4 panes would work and stich together, as you can see further down that didn't work. So I have re planned a 6 pane mosaic with a greater 30% overlap. I ran a test with 2 frames and with a stretch and alignment in Photoshop and Bingo it works. I would like to run with more data looking at 4-5 hours on each frame, more data equals more signal and less noise. So below is the first run of 50 minutes data per frame. So far with so little data I am very pleased that there is the full shell on view. Shown in negative here you can see the joins and the noise is very apparent. Very happy so far.

Simies 147

 New project time. I have never attempted this object before even with widefield DSLR.  Simeis 147, also known as the Spaghetti Nebula, or Sharpless 2-240, is a supernova remnant (SNR) in the Milky Way, so huge it straddles the border between the constellations Auriga and Taurus. Discovered in 1952 at the Crimean Astrophysical Observatory by Grigory Shajn and his team using a Schmidt camera and a narrowband filter that was close to the Hydrogen Alpha transmission line. It is difficult to observe due to its extremely low brightness. I honestly was not sure if I would be able to capture anything using 300 second exposures. My first attempt was a 4 pane mosaic using Telescopius to copy the CSV file and pasting it into the ASI air pro. As you can see things did not quite align with a 15% overlap.

My second go will be a 6 pane with a 30% overlap