Southern Pinwheel Galaxy - M83


Scope: C8 f/2.8; Location: Dos Picos Park - Ramona, CA; 9 Apr. 2005; Camera: ToUcam SC3

Exposure: 24 x 32 sec and 24 x 10 sec Luminance exposures with IR Block Filter; 12 x 32 sec RGB 

Processing: Images were captured in K3CCDTools 2. Aligned/stacked in Registax 3 and saved as FITS. Luminance and Color channels were scaled and rough color balanced in IRIS. Channels were co-registered in IRIS.   LRGB Channels were resized to 800x600 prior to LRGB combine. Luminance and Color FITS were combined in Photoshop with Luminance Layering. Color balancing and final touches in Photoshop (including background noise subtraction). SGBNR  (PixInsight LE) was used to smooth remaining background noise on the luminance channel and the final result. Richardson-Lucy deconvolution was applied to the luminance channel prior to LRGB combine (4 iterations). Final size  approximately 800x600.

This image was a guided image. North is up. This image replaces an earlier image that can be seen in the Archives here. It is a wider field than the earlier image. This well known object is in the constellation of Hydra right on the border with Centarus. Horizontal FOV is about 30'

Image Center is approximately Equatorial 2000: RA: 13h 37m 00s Dec: -2952'02"


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All images and content remain the property of Jim Thommes - copyright 2003, 2011

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