Celestial hemisphere:  Southern  ·  Constellation: Sagittarius (Sgr)  ·  Contains:  M 20  ·  M 21  ·  NGC 6514  ·  NGC 6531  ·  Trifid Nebula
M20 - Trifid Nebula, FedericoDS
M20 - Trifid Nebula
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M20 - Trifid Nebula

M20 - Trifid Nebula, FedericoDS
M20 - Trifid Nebula
Powered byPixInsight

M20 - Trifid Nebula

Equipment

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Acquisition details

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Description

This is the first broadband image acquired with the new camera (qhy268C).

I'm still studying it so I experimented different readout modes.

The image was taken in two nights: for the first I chose "High Gain Mode" with gain 60 offset 15 and for the second one "Photographic DSO Mode" with gain 30 and offset 15.

At gain 30 in Photographic DSO Mode, RON drops to a value similar of the one in high gain mode so that's the reason I chose gain 30.

But I must admit that there wasn't so much difference between the lights: so I think that from now on, for me, High Gain Mode with gain 0 should be fine for RGB data.

Speaking of the Trifid Nebula I really love how the color did show up and I like also the dense star field around the nebula (the image is in fact almost uncropped).

Let me know if you have any comment or advice for this image: everything is welcomed!

Clear Skies!

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