ARP 9 (NGC2523) is a nice example of a barred spiral with a bifurcated arm that does not start at end of bar. Its companion , NGC2523B is an edge on spiral.
Details
20" f/4.1 telescope at the SDG observatory of Garry Sedun in Arizona.
TV Paracorr coma corrector and SBIG ST2000 XM camera.
Guidescope WO 80mm f/6.8 APO.
Mount - Paramount ME
Exposures - 20 4m frames for each of R,G,B and Clear filters plus flats, bias and darks to match.
Processed in Images Plus and Photoshop