Thread: Messier 20
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Old 14-07-2010, 04:54 AM
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telemarker (Keith)
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Join Date: Mar 2008
Location: Canberra, Australia
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Messier 20

M20 or the Triffid nebula, so named due to its tri-segmented appearance is my first Tricolour image. Taken through my recent ED127 and ST-8300 camera/scope acquisitions.

HEQ5Pro guided with a DSI/50mm finderguider combo.
3hr luminance and 3hr Ha taken using 20 min subs 1x1 binning
30min RGB using 5 min subs and 2x2 binning all at -25 degrees
Registered and stacked in DSS. RGB registered in DSS, combined in PS, Ha-Red blended for the red channel and Ha-Lum combined.

Pushed keys and clicked buttons until it resembled something like a nebula.

Pls tell me how to improve it.

First image is cropped to remove stacking marks. Second is cropped for the tight close up.
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