Comet Brewington C/154P 
December 28, 2013

 This is a second and much more successful attempt at capturing this faint 11th magnitude comet the next night. Images on the 27th were fogged by a mysterious red light that I could not find and I had to attempt to process that out, with mixed results. I finally found it after an hour of searching the following night - a neon lamp on an electric blanket under the laptop I was using for taking the images. With this gone, I tried again the following night, and was completely successful, a very deep 90 minutes total integration time that not only shows the comet and its teal color well, but extremely faint galaxies between 18th and 19th magnitude all over the field. Stars to magnitude 20 are also recorded.

I am presenting to you two variations in processing here. The first, the stacked comet sub frames were aligned with the very first frames comet image as were the stars from an hours worth of collection. This shows the comet stationary against a stationary star field.

The second image was processed to track the comet only, showing its movement against a colorful star field for over an hour of L data. Ive left both images with a level 28 background to better reveal the comet and faint galaxies.

Select an image size for a larger view: 1290 x 960 1600 x 1200
Select an image size for a larger view: 1290 x 960 1600 x 1200
Lens: 12.5" f/5 Home built Newtonian Platform: Astrophysics AP1200 Exposure: 1:30h LRGB Location: Payson, Arizona Elevation: 5150 ft. Sky: Seeing 4/10, Transparency 8/10 Outside Temperature: 28F Processing Tools: Maxim DL, Photoshop CS3 HOME GALAXIES EMISSION NEBS REFLECTION NEBS COMETS GLOBULARS OPEN CLUST PLANETARIES LINKS