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Old 19-01-2014, 07:59 PM
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rogerg (Roger)
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Join Date: Feb 2006
Location: Perth, Western Australia
Posts: 4,563
NGC 1313 in .. wait for it .. colour!

Hi all,

It is exceedingly rare I publish a LRGB image but here is one. Data from a couple of weeks back I just got around to doing some more work on.

I have attached LRGB and Luminance only. To be honest the Luminance only has more detail - it seems my RGB frames have really brought down the quality of the image?

As per normal I have struggled to achieve a respectable result out of the LRGB data. This final LRGB image actually has the Luminance image overlayed and masked to hide awful green stars! I think they are because of the 2x2 binning of RGB frames or because some RGB frames were slightly softer on focus.

If anyone feels like playing, here are the LRGB frames:
https://www.dropbox.com/sh/jfb56phxg6pe2ii/1Xh1oum3lN

R=20x300s Bin 2x2
G=14x300s Bin 2x2
B=20x300s Bin 2x2
L=20x600s Bin 1x1

ST8-XME, 12" @ 2180mm (0.84"/pixel)

Shown at 1:1.

All suggestions for improvement (other than the obvious "more data would be good") welcomed

Regards,
Roger.
Attached Thumbnails
Click for full-size image (NGC_1313_Mean_colour_DBE.jpg)
127.7 KB142 views
Click for full-size image (NGC_1313_Mean__DBE.jpg)
178.6 KB103 views
Click for full-size image (NGC 1313 (Mean) colour (green stars).jpg)
175.6 KB117 views
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