Comet 2006 M4 SWAN was a nice object for northern hemisphere observers, being readily visible to the naked eye, peaking at about magnitude 4 and displaying a long, faint gas tail.
Comet 2006 M4 SWAN. October 29, 2006. Combination of 15, 3 minute images, unfiltered and 5, 3 minute images each with red, green, and blue filters. SBIG ST-8XE CCD. 300mm f/3.5 Tamron lens.
Comet 2006 M4 SWAN. November 1, 2006. Combination of 3, 3 minute images using a red filter 13, 3 minute images with a green filter 9, 3 minute images using ablue filter. SBIG ST-8XE CCD. 300mm f/3.5 Tamron lens.
Comet 2006 M4 SWAN. November 3, 2006. Combination of 5, 3 minute images using a red filter 10, 3 minute images with a green filter 13, 3 minute images using ablue filter. SBIG ST-8XE CCD. 300mm f/3.5 Tamron lens.