The Cave Nebula HaRGB on dual Esprits

[gorann]

Friday and Saturday night were supposed to be clear, and the obsy roof was off and I was out getting everything ready - but in vain. Then on Sunday night, which had no great forecast (and I had to get up early on Monday), it was suddenly totally clear. The guiding suggested a modest seeing (RMS around 1"/pix) and  SQM was 21.0, which is ok but far from the best I get here. I used my dual rig on the the Mesu 200 with ASI1600 for Ha on the Esprit 100 (3.5 nm Baader Ha, 46 x 10 min, gain 139, offset 50, -20°C) and ASI071 for RGB on the Esprit 150 (85 x 5 min, gain 200, offset 30, -15°C). Ha mainly added to the red channel using lighten in PS and a bit Ha added as lum. Stacked in PI and the rest in PS. Totally 14.75 hours.

EDIT: reprossesed the image to emphasize the dark nebulosity floating araound

 

 

 

 

 

Edited November 1, 2019 by gorann

[kirkster501]

Wow, magnificent Goran!

[gorann]

Thanks a lot Steve! Fortunately most of it was done while I was asleep, except the processing.....

[wimvb]

Excellent, Göran. 

3 hours ago, gorann said:

Thanks a lot Steve! Fortunately most of it was done while I was asleep, except the processing.....

What? You can't do the processing in your sleep? 😉

[HunterHarling]

6 hours ago, wimvb said:

Excellent, Göran. 

What? You can't do the processing in your sleep? 😉

You can stack in you're sleep

Very nice picture btw.

[gorann]

6 hours ago, HunterHarling said:

You can stack in you're sleep

Very nice picture btw.

Thanks! Sleep stacking is a good idea, especially with the high number of subs produced by CMOS cameras.

[Ola Skarpen]

Veldig flott bildet Göran

[gorann]

3 hours ago, Ola Skarpen said:

Veldig flott bildet Göran

Stort takk Ola! (A big thank you Ola)

[tomato]

Wonderful image, from a dual Esprit rig, I like it.👍

 

[teoria_del_big_bang]

Outstanding 🙂 

Steve

[gorann]

8 minutes ago, tomato said:

Wonderful image, from a dual Esprit rig, I like it.👍

 

Thanks Tomato - I suspect you may be a happy Esprit owner too....

[gorann]

2 minutes ago, teoria_del_big_bang said:

Outstanding 🙂 

Steve

Tanks a lot Steve - much appreciated!

Edited October 10, 2019 by gorann

[gorann]

I had a go at adding more dust to the image using the interesting PS method Olly @ollypenrice recently posted. I think I like it.

 

 

 

Edited October 11, 2019 by gorann

[tomato]

2 hours ago, gorann said:

Thanks Tomato - I suspect you may be a happy Esprit owner too....

I am indeed, in collaboration with @Tomatobro a dual Esprit 150 rig will be put together in the not too distant future.😊

[gorann]

5 minutes ago, tomato said:

I am indeed, in collaboration with @Tomatobro a dual Esprit 150 rig will be put together in the not too distant future.😊

Sounds like a dream team!

[gorann]

Reprossesed the image to emphasize all the dark nebulosity floating around

[carastro]

Very nice Goran.

Carole 

[gorann]

Just now, carastro said:

Very nice Goran.

Carole 

Thanks a lot Carole!

[MartinB]

Cracking image Gorann, that cave looks very deep and dark!

[gorann]

33 minutes ago, MartinB said:

Cracking image Gorann, that cave looks very deep and dark!

Thanks a lot Martin! - I aimed deep and dark

[simmo39]

Wow,  lovely image.

[gorann]

18 hours ago, simmo39 said:

Wow,  lovely image.

Thanks Simmo, much appreciated!

[ollypenrice]

Great target, done so well! It comes to something when I say this because I'm always being beaten up on the French forum for my high colour saturation but I might just ease the colour down a tad. However, another part of me likes it!

Olly

[gorann]

6 minutes ago, ollypenrice said:

Great target, done so well! It comes to something when I say this because I'm always being beaten up on the French forum for my high colour saturation but I might just ease the colour down a tad. However, another part of me likes it!

Olly

Thanks a lot Olly! I am not French so I may just keep the colours as they are - I also have a weakness for saturation. I wish we could make images with saturation and brightness sliders.........

[ollypenrice]

2 hours ago, gorann said:

Thanks a lot Olly! I am not French so I may just keep the colours as they are - I also have a weakness for saturation. I wish we could make images with saturation and brightness sliders.........

We can, can't we? Photoshop has both. Or do you mean that we could offer our audience a certain freedom to choose? Why not?

Olly