Lagoon and Trifid nebulas in bicolor (MONO 550D)

[Luis Campos]

This past week I was at a fairly dark sky location in north Portugal for a little vacation and obviously I had to drag the gear for some quality time under the stars

Because I don't have access to the south at home I decided to go for the lagoon and Trifid nebulas in narrowband (processed in bicolor with synth green channel). Sky was misereable most of the nights with a lot of wind and high clouds, this summer was a total failure around here, but even so I managed to get some Ha and OIII subs under not ideal conditions, the data is good, specially the Ha.

For this image, Ha is 10x600 secs and OIII is 10x700 secs. captured with my Canon 550D with mono sensor and tec cooled (working at 6cº) a SW ED80 refractor with 0.8 reducer (f/6) riding an EQ6 go to mount.

This is a simple preliminary image with NO CALIBRATION FRAMES ADDED, just stack of the light frames I will post the full callibrated image soon but I don't expect much diference...let's see

Anyways hope you enjoy, here goes the bicolor and Ha only images:

Cheers,

[Thalestris24]

Vey nice, Luis!

[Luis Campos]

Many thanks Louise

Cheers,

[laudropb]

Very nice image. Thanks for posting.

[Luis Campos]

Very nice image. Thanks for posting.

Many thanks

[Luis Campos]

Ok, now the final versions with callibration added (no darks used, only bias and flat).

Here is the full version:

Here a crop of the Lagoon core at 75% resolution, processed to emphasize details, hope it's not overcooked, my eyes are crossed now...

[Thalestris24]

Hi Luis

Even better! The calibration certainly helps improve the images. A large number of pixels can give some flexibility too

Louise

[carastro]

Some very nice detail showing there.

Carole 

[Luis Campos]

Some very nice detail showing there.

Carole 

Thank you Carole

[Luis Campos]

I've uploaded the Ha and OIII stacks on dropbox for anyone who wants go have a go at this data:

Ha stack:

https://www.dropbox....brated.tif?dl=0

OIII stack:

https://www.dropbox....brated.tif?dl=0

Please share the outcome of your processing

Cheers,