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Contains:  Other
Sharpless 2-308 Wolf-Rayet Star in Canis Major-NASA APOD, 





    
        

            Jeff Husted

Sharpless 2-308 Wolf-Rayet Star in Canis Major-NASA APOD

Description

NASA Astronomy Picture of the Day (APOD) for December 24, 2013;
This image was taken in my backyard inTehachapi, Ca., during a cold snap (13 degrees).
Details: Televue NP127is at f4.1; Atik 383L+ at -18 deg C; Orion EQ-G mount;TS OAG; Astrodon 3nm filters: Ha(G)(15x20min),SII(R)(3x20min),OIII(B)(18x20min). Because this 'dolphin' or 'gourd' is so strong in OIII, I mixed approximately 15% OIII into the red channel along with 85% SII. T obtain the final colors, I tweaked the color bandwidths and hues of this image using PSE9 [replace color] in an attempt to achieve a pleasing look. I also used AIPWIN to apply Sigmoid Brightness Scaling on each subframe before stacking.

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StarTan
Jeff Husted
License: None (All rights reserved)
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Sharpless 2-308 Wolf-Rayet Star in Canis Major-NASA APOD, 





    
        

            Jeff Husted