NGC 281 - Pacman Nebula Narrowband

Imaged with the Astrodon 3nm Ha & OIII filters, the image consists of 4 hours exposure in each filter. These filters are not easy to process stars with, the Ha suppresses the small dim stars, but they have a tendency to penetrate through the OIII filter.

 

Imaged with the Altair Astro 6" RC & Atik 314l+, processed in Pixinsight & CS5.

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