Here is a small planetary nebula in Lacerta known as Abell 79. It is small-only 1x1 arc minute across. I started out by imaging a 5 minute sub using the L filter and the image barely showed up. I then switched to the H-Alpha filter and voila! Much brighter image and more detail so I continued using this filter. Another in my collection of small, not very commonly imaged objects.
Taken with a C11 @ f/12, MI-250, ST-8XME, Astrodon H-Alpha, 2x2 binning, AO-8 @ 2.5 sec guide rate, 15x10min subs, processing in CCDSoft using Add combine and nearly a full moon!
Taken with a C11 @ f/12, MI-250, ST-8XME, Astrodon H-Alpha, 2x2 binning, AO-8 @ 2.5 sec guide rate, 15x10min subs, processing in CCDSoft using Add combine and nearly a full moon!
Attached Image:
