M109, C11 @ F7.2 & Nikon D750

M109 is located very very close to Phecda, one of the stars in Ursa Major’s bowl. In fact the star caused reflections in this image. About 4 hours of data, 115x 120″ on ISO800. Guiding was done through OAG. Manual focus corrections.

The images were obtained using Sequence Generator Pro, and saved in TIF. This creates B/W images. To get your color back they need to be debayered. This can be done in AstroPixelProcessor by checking “Force CFA” in the menu 0/RAW/FITS

M109: an image, despite all issues

An image of the surprisingly nice galaxy M109, located near Phecda, one of the bright stars of the Ursa Major’s bowl. Imaging was done with the C11, using the Starizona F 7.2 reducer, and the Nikon D750. Unfortunately, the image format setting in SGP was set to “FITS”. That resulted in strange, Black/White images with lots of problems! I could salvage the 27×300″ images a bit but the end result is a bit disappointing, it’s not a color version to start with. ..

Testing the C11 without OAG

After cleaning & collimation, I tested the C11 with the Starizona F 7.2 reducer, the ASI183mm (way oversampled obviously), and guiding using a simple external 8×50 guider and the ASI290MC. Just as a test not bad. I’m not convinced the mirror shift did not have influence in this image. Focusing was a pain, needed to be done manually.

C11 Starizona F7.2 reducer flattener 8×50 guidescope, ASI183MM 46×120″ G111 Baader RGB