Celestial hemisphere:  Southern  ·  Constellation: Sagittarius (Sgr)  ·  Contains:  M 20  ·  NGC 6514  ·  Trifid nebula
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Trifud Nebula M20, Narrowband from ASI1600MM-Cool, glend
Trifud Nebula M20, Narrowband from ASI1600MM-Cool
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Trifud Nebula M20, Narrowband from ASI1600MM-Cool

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Description

This is the combined Ha, OIII, SII false colour narrow band composite image of M20, taken with the ASI1600MM-Cool camera. This was built with just 10 x 60" subs for each filter, for a total of 30 minutes of integration. Stacked with Darks and Bias Frames in DSS to produce Req files. Colour processing in Photoshop CC. It needs more OIII and SII. Still not bad for the small amount of narrow band data.

I have shot this target at Unity gain as well and as you can see from the mono images in the gallery, it carries substantially more signal, so I may combine the Unity Gain OIII an SII with the G71 Ha, should be good.

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Trifud Nebula M20, Narrowband from ASI1600MM-Cool, glend