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gorann

The Cave Nebula HaRGB on dual Esprits

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Posted (edited)

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.

 

 

 

 

 

 

20191006 CaveNebRGB PS45smallSign.jpg

Edited by gorann
  • Like 19

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

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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? 😉

  • Haha 3

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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.

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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.

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3 hours ago, Ola Skarpen said:

Veldig flott bildet Göran

Stort takk Ola! (A big thank you Ola)

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

 

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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....

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2 minutes ago, teoria_del_big_bang said:

Outstanding 🙂 

Steve

Tanks a lot Steve - much appreciated!

Edited by gorann
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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.

 

 

 

20191006 CaveNebRGB PS51smallSign.jpg

Edited by gorann
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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.😊

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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!

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