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M1 The Crab Nebula- LRGB

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21 replies to this topic

#1 pyrasanth

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Posted 09 December 2016 - 07:57 AM

My last efforts at the Crab Nebula were posted last year. I used the same system for this image but upgraded the guide camera to a Starlight Express Ultrastar which gives a wider field & bigger selection of guide stars.

 

The image below is 12 hours, 3 hours in each of LRGB using an Atik 460 and Baader LRGB 2" filters. Direct guide on a Paramount MX+ using a  Celestron C11 Edge & Innovations Foresight ONAG

 

Let me know what you think of the image. I avoided narrow-band as I did that last time!

 

M1_TST6.png

 

A bigger image is here https://www.dropbox....1_LRGB.png?dl=0

 

Clear skies to you all! (I rarely get them!)


Edited by pyrasanth, 09 December 2016 - 07:59 AM.

  • Cristina Cellini, leveye, PirateMike and 2 others like this

#2 RichD

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Posted 09 December 2016 - 08:21 AM

Beautiful! great filament detail. It feels like the nebula has real depth to it too.



#3 pyrasanth

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Posted 09 December 2016 - 08:44 AM

Beautiful! great filament detail. It feels like the nebula has real depth to it too.

Thanks!

 

I'm really surprised at how well the final image came out. I think the secret if there is one was to bin the colour at 2x2 so there was lots of strength and the L at 1x1. The subs were simply awful- they looked like they had been split down the diagonal with a red & green half!- Pixinsight & Gradient Exterminator did a great job!



#4 Cristina Cellini

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Posted 09 December 2016 - 08:45 AM

I think it is a beautiful image!

 

Cristina



#5 pyrasanth

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Posted 09 December 2016 - 09:02 AM

I think it is a beautiful image!

 

Cristina

Thanks Cristina-everybody who has commented has only had good things to say. There is a slight amount of star distortion in the bottom left which I think is the F7 focal reducer beginning to distort the field as noted in some of my previous posts.



#6 AdrianoMS

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Posted 09 December 2016 - 09:17 AM

Your image of M1 is very nice. Thanks for posting.



#7 zatman1

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Posted 09 December 2016 - 09:20 AM

I hope that someday I will be able to just SEE this never mind photograph it.

Incredible !!

Bob



#8 pyrasanth

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Posted 09 December 2016 - 09:20 AM

Your image of M1 is very nice. Thanks for posting.

It's a pleasure- happy Christmas!



#9 pyrasanth

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Posted 09 December 2016 - 09:23 AM

I hope that someday I will be able to just SEE this never mind photograph it.

Incredible !!

Bob

I know the feeling. I gave up trying to see things a long time ago. The telescope is outside & I'm in the warm- I'm a Chicken astronomer who likes to be warm. Joking aside I've always found the eyepiece view unappealing with regard to deep-sky objects- I admire the brave souls outside!



#10 leveye

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Posted 09 December 2016 - 10:06 AM

Beautiful work. Thanks for the inspiration.



#11 jhayes_tucson

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Posted 09 December 2016 - 10:08 AM

That's a beatiful M1!  Very nicely done...

 

John



#12 pyrasanth

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Posted 09 December 2016 - 10:09 AM

Beautiful work. Thanks for the inspiration.

Thanks for the words of encouragement- they mean a lot.



#13 pyrasanth

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Posted 09 December 2016 - 10:11 AM

That's a beatiful M1!  Very nicely done...

 

John

Thanks!


Edited by pyrasanth, 09 December 2016 - 10:13 AM.


#14 pyrasanth

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Posted 09 December 2016 - 10:13 AM

That's a beatiful M1!  Very nicely done...

 

John

Thanks!


Edited by pyrasanth, 09 December 2016 - 10:13 AM.


#15 PirateMike

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Posted 09 December 2016 - 10:28 AM

Fantastic image of M1. One of the best that I have seen.  :waytogo:  :waytogo:  :waytogo:



#16 pyrasanth

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Posted 09 December 2016 - 11:59 AM

Fantastic image of M1. One of the best that I have seen.  :waytogo:  :waytogo:  :waytogo:

Oh dear......I will need to get a bigger telescope now......you've just given me the perfect excuse! :)



#17 Corsica

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Posted 09 December 2016 - 12:35 PM

My last efforts at the Crab Nebula were posted last year. I used the same system for this image but upgraded the guide camera to a Starlight Express Ultrastar which gives a wider field & bigger selection of guide stars.

 

The image below is 12 hours, 3 hours in each of LRGB using an Atik 460 and Baader LRGB 2" filters. Direct guide on a Paramount MX+ using a  Celestron C11 Edge & Innovations Foresight ONAG

 

Let me know what you think of the image. I avoided narrow-band as I did that last time!

 

attachicon.gifM1_TST6.png

 

A bigger image is here https://www.dropbox....1_LRGB.png?dl=0

 

Clear skies to you all! (I rarely get them!)

 

Nice Job!

 

Considering your location and related sky limitations, this is quite an achievement.

I understand that you used FocusLock (FL) as well.

I am curious, have you ever had an opportunity to compare this image with previous M1 ones before ONAG/FL?

I am interested by any feedback (good or bad) on this topic, especially under sky glow conditions and long exposures/focal lengths.

 

By the way I love M1, a very nice target to image. Think about those Chinese astronomers who saw the actual supernova lighting the sky back them, they will be very impressed by your picture.



#18 pyrasanth

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Posted 09 December 2016 - 02:43 PM

 

My last efforts at the Crab Nebula were posted last year. I used the same system for this image but upgraded the guide camera to a Starlight Express Ultrastar which gives a wider field & bigger selection of guide stars.

 

The image below is 12 hours, 3 hours in each of LRGB using an Atik 460 and Baader LRGB 2" filters. Direct guide on a Paramount MX+ using a  Celestron C11 Edge & Innovations Foresight ONAG

 

Let me know what you think of the image. I avoided narrow-band as I did that last time!

 

attachicon.gifM1_TST6.png

 

A bigger image is here https://www.dropbox....1_LRGB.png?dl=0

 

Clear skies to you all! (I rarely get them!)

 

Nice Job!

 

Considering your location and related sky limitations, this is quite an achievement.

I understand that you used FocusLock (FL) as well.

I am curious, have you ever had an opportunity to compare this image with previous M1 ones before ONAG/FL?

I am interested by any feedback (good or bad) on this topic, especially under sky glow conditions and long exposures/focal lengths.

 

By the way I love M1, a very nice target to image. Think about those Chinese astronomers who saw the actual supernova lighting the sky back them, they will be very impressed by your picture.

 

Thanks Gaston- I will see if I have any images before I purchased the ONAG & post any I find. I use FL all the time as its a great tool to give automated refocus as the temperature swings quite dramatically on the Edge OTA- this really is an image life saver and is very good indeed.

 

The original subs had bad gradients but because the signal level was good I was able to correct fairly easily with DBE in Pixinsight & Gradient Xterminator



#19 rainycityastro

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Posted 09 December 2016 - 02:47 PM

Very nice and natural colors! And excellent detail too.



#20 pyrasanth

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Posted 11 December 2016 - 04:32 AM

I have managed to get even more detail out of the image by running a very gentle deconvolution. Improved image is here to the full sized version: https://www.dropbox...._Decon.png?dl=0



#21 chrysalis

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Posted 11 December 2016 - 05:21 AM

Beautiful and great detail!



#22 chrysalis

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Posted 11 December 2016 - 05:22 AM

I have managed to get even more detail out of the image by running a very gentle deconvolution. Improved image is here to the full sized version: https://www.dropbox...._Decon.png?dl=0

Yes that is a much more pleasing image!




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