Continuing on the theme of imaging the small and obscure, here is a shot of the planetary nebula Abell 4 in Perseus. Not only is there the planetary nebula in this shot, but there are numerous background galaxies. I knew that there were 4 when imaging this object according to The Sky 6 (Pro edition). When I finished proecessing the final image, I could count at least 3 more background galaxies that weren't shown in The Sky 6. My question is, where would one consult to identify these other galaxies? These are obviously very faint and obscure and it would be fun to see just how faint this setup can image.
Details on this shot-20x4 min, 2x2 bin, ST-8XME, 1992 C11@ f/12, MI-250, AO-8, Pyxis. Processing in CCDSoft using Add combine. Abell 4 is 22" in diameter.
Details on this shot-20x4 min, 2x2 bin, ST-8XME, 1992 C11@ f/12, MI-250, AO-8, Pyxis. Processing in CCDSoft using Add combine. Abell 4 is 22" in diameter.
Attached Image:
