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Pelican - First Light - Narrowband - CDK14

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#1 Rouzbeh

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Posted 28 June 2022 - 08:30 PM

First narrowband image with the new rig. The Pelican Nebula in SHO.

https://www.astrobin.com/6gjz91/0/

 

The CDK14 with the 0.66x reducer is very well suited for narrowband nebula imaging. The FOV is about 1.5 degrees with the full frame sensor, it was a bit too much and I had to crop a bit of the frame for my taste.

Being almost 50 degrees latitude north meant there no astronomically dark nights (not even 30 minutes) at this date, but I finally finished finetuning the setup and wanted to get some data regardless. It turned out better than I expected.

 

The combination of aperture, fast focal ratio, very narrow bandpass and the very low noise QHY600M meant a decent amount of data could be captured despite the conditions and Bortle 6 suburban sky.

The image scale is 0.465"/pixel and was downsampled to reduce the image size showing the "big picture".

 

Integration:14h

Bortle Dark-Sky Scale:6.00
 

Pixel scale: 0.871 arcsec/pixel

Attached Thumbnails

  • Pelican Nebula -Rouz-CN.jpg

Edited by Rouzbeh, 28 June 2022 - 08:34 PM.

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#2 elmiko

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Posted 28 June 2022 - 10:00 PM

Spectacular image! Congratulations on your first light!



#3 t-ara-fan

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Posted 28 June 2022 - 10:24 PM

Nice. It has a great 3D look. 

 

I have the same latitude problem you have.  But I drive out of town to get away from LP.  On June 26-27 at midnight the sky at the zenith was SQM 21.3, and to the north it was SQM 20.7.   So ... dark enough to get data, just not for very long!


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#4 R Botero

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Posted 29 June 2022 - 03:12 AM

Great shot and congratulations on finally getting an image
out of your setup after all that work getting it together 👍
I image from London so know what twilight means 😬

Roberto

Edited by R Botero, 29 June 2022 - 03:12 AM.

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#5 Mert

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Posted 29 June 2022 - 04:02 AM

Looking great, very fine intricate details!

That is certainly a rewarding first light.

Congratulations!


Edited by Mert, 29 June 2022 - 04:13 AM.


#6 Rouzbeh

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Posted 29 June 2022 - 01:09 PM

Spectacular image! Congratulations on your first light!

Thank you for the comment!



#7 Rouzbeh

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Posted 29 June 2022 - 01:11 PM

Nice. It has a great 3D look. 

 

I have the same latitude problem you have.  But I drive out of town to get away from LP.  On June 26-27 at midnight the sky at the zenith was SQM 21.3, and to the north it was SQM 20.7.   So ... dark enough to get data, just not for very long!

Yes its quite unfortunate.

I just got a pier and looking into taking it t darker site, but the CDK14 is a big scope and not a simple task!

 

I would like to try though.



#8 Rouzbeh

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Posted 29 June 2022 - 01:12 PM

Great shot and congratulations on finally getting an image
out of your setup after all that work getting it together
I image from London so know what twilight means

Roberto

Thanks Roberto, I can image London isn't any better. I actually started imaging in Scotland a LOMG time ago!

 

Yes took me months to get it working right,

 

We should bet darker skies as the season progresses (if the clouds don't come back).

 

 

Rouz


Edited by Rouzbeh, 29 June 2022 - 01:13 PM.

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#9 Rouzbeh

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Posted 29 June 2022 - 01:13 PM

Looking great, very fine intricate details!

That is certainly a rewarding first light.

Congratulations!

Thanks Mert, glad you liked it!

 

 

Rouz



#10 Mert

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Posted 29 June 2022 - 02:33 PM

Not only I like your image Rouz, it is the result of a large journy
with a load of investment and new tecnologies.
It is great to see how all tecnology put into this equipment fits together and gives this first light.

Edited by Mert, 29 June 2022 - 02:35 PM.


#11 Rouzbeh

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Posted 29 June 2022 - 03:07 PM

Not only I like your image Rouz, it is the result of a large journy
with a load of investment and new tecnologies.
It is great to see how all tecnology put into this equipment fits together and gives this first light.

Thanks again Mert. Yes it has been quite the journey and at times I wondered why I'm putting myself through all this. I'm sure we all ask that at times when nothing seems to work!

 

My goal was relatively high resolution with relatively low integration times as there isnt much clear dark sky here.

 

I tried the 10" CFF RC but the collimation was just tooo much work, the CDK12 was a good scope but for nebulae I wanted a larger FOV but still at high resolution so the CDK14 seemed to be better suited with a reducer and full frame sensor.

 

The system is tuning and working well it seems. I got another high res version of the Pelican and will post that soon.

 

 

CS

Rouz




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