Monoceros mosaic LRGB+Ha+O3, 12+ hours

[MartinFransson]

I finally managed to get some LRGB for my second panel of the mosaic I shot of the Monoceros area. I already had the narrowband mosaic finished. I used the Ha and O3 to enhance the R and B channels and also some of the O3 in the green channel. I used the @ollypenrice method of blend mode Lighten i the channels in PS. I also created a combined Lum from the Ha and O3 and blended that in at about 30% in the final image.

Total exposure for both panels about 12,5 hours:

L: 73*60s
R: 35*60s
G: 31*60s
B: 34*60s

Ha: 54*300s
O3: 60*300s

Equipment used: Zwo ASI 1600MM-Cool + Samyang 135/2.0 @f/4 and HEQ5 Pro Synscan mount.

Edited February 4, 2020 by MartinFransson
Entered wrong equipment info

[carastro]

Wow

[ollypenrice]

Wow indeed, that's a rich image and beautifully framed to find one coherent structure in this wide field. A very memorable image indeed.

Olly

[Allinthehead]

That's a great image Martin, i don't recall ever seeing that blue area on the left. Was that in the rgb?

[MartinFransson]

1 minute ago, Allinthehead said:

That's a great image Martin, i don't recall ever seeing that blue area on the left. Was that in the rgb?

Thanks! No, it didn´t show up in the RGB (although I didn´t have much of that), it was from the O3-data used to enhance blue and green channels.

[MartinFransson]

41 minutes ago, ollypenrice said:

Wow indeed, that's a rich image and beautifully framed to find one coherent structure in this wide field. A very memorable image indeed.

Olly

Thank you Olly! Framing is important for me... being a landscape photographer by day it´s hard to avoid I started out with the right part of it, the plan was to capture the Rosette and the structures around it but I soon realised that I had to add a frame to the left and recompose a bit.

[MartinFransson]

@Allinthehead As you can see here, it is a structure visible in the O3 data. Below are the stretched versions of O3 and Ha (not final edits, though)

O3 data:

Ha data:

[Allinthehead]

2 minutes ago, MartinFransson said:

Below are the stretched versions of O3 and Ha

Thanks, looks like it might be worth a visit with a longer focal length.

[MartinFransson]

23 minutes ago, Allinthehead said:

Thanks, looks like it might be worth a visit with a longer focal length.

I´ve seen that done and it looks awesome! Looking forward to you giving that a go

[harry page]

Hi

well Thats a big view - congrates on a excellent image

Harry

[gorann]

Incredible image Martin - I think I said something similar when you posted it on Astrobin. I wonder if anyone have seen (or rather imaged) this area like this before. I would never have thought that a 24 mm lens could capture that much detail, including the dark globules in the Rosette.

EDIT: Your image got me going on globules and I found a recent thesis from a fellow Swede. Very interesting reading, at least the parts I could comprehend:

Globule thesis.pdf

Edited February 4, 2020 by gorann

[MartinFransson]

57 minutes ago, gorann said:

Incredible image Martin - I think I said something similar when you posted it on Astrobin. I wonder if anyone have seen (or rather imaged) this area like this before. I would never have thought that a 24 mm lens could capture that much detail, including the dark globules in the Rosette.

EDIT: Your image got me going on globules and I found a recent thesis from a fellow Swede. Very interesting reading, at least the parts I could comprehend:

Globule thesis.pdf 29.78 MB · 0 downloads

Thanks Göran and sorry - I entered the wrong equipment info! It was the Samyang 135/2.0 lens, not the 24mm!

[gorann]

43 minutes ago, MartinFransson said:

Thanks Göran and sorry - I entered the wrong equipment info! It was the Samyang 135/2.0 lens, not the 24mm!

That explains it, but it does not make the image less incredible!

[simmo39]

Thats so good, so rich and deep.

[DaveS]

Wow, that's deep!

Don't often see the Rosette connected to the rest of the HII regions.

[assouptro]

Thanks for sharing Martin 

that’s one incredible image, and well worth the time you’ve invested! 
 

I love it 

Bryan

[MartinB]

Beautiful Martin.  I love some of the fainter stuff away from the faint nebulosity.  Wide field views are perfect all the interesting goings on around the bright nebulae