I must be honest and say this is really a 19 pane mosaic - the 20th pane was taken "just in case" as I thought I may have missed a bit - but it wasn't needed in the final image!!
ED120APO, 2.5x Powermate, ASI120mm mono camera and a red filter:
Reduced size JPEG:
And the full size image: (It is big!! and you will need to click cross shaped icon at the top right to fully size the image):