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NGC 5906

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11 replies to this topic

#1 Joshuasnoesky

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Posted 23 April 2019 - 02:45 PM

Used:

 

Telescope Skywatcher quattro 10 inch f/4

Camera ASI294MC Pro

No guiding

 

70 images of 60sec. stacked with ASTAP. No darks No flats.

 

My only problem is that i can't get my color into the image.

 

All comments appriciated.

 

If someone feels the urge to try the data i can load it up. Please let me know.

Attached Thumbnails

  • NGC 5906.jpg

Edited by Joshuasnoesky, 23 April 2019 - 02:49 PM.

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#2 flt158

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Posted 23 April 2019 - 02:51 PM

Stunning bright blue image, Joshua. 

I greatly admire your field stars too. 

Can you tell us what constellation NGC 5907 is in?

It sure looks excellent!

 

Aubrey. 



#3 Joshuasnoesky

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Posted 23 April 2019 - 03:02 PM

NGC 5906 is in Draco.


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#4 petert913

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Posted 23 April 2019 - 03:03 PM

It's in Draco near Ursa Major.

 

Wow, that is a stunning little needle, isn't it !

Not sure why the contrast is so low and the background

is really blue.  Others will chime in , I'm sure.


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#5 Joshuasnoesky

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Posted 23 April 2019 - 03:18 PM

Thanks for all the kind comments.

 

Here you can find the 60+ images:

 

 

https://wetransfer.c...23200629/499fba


Edited by Joshuasnoesky, 23 April 2019 - 03:19 PM.


#6 rekokich

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Posted 23 April 2019 - 04:00 PM

Joshua,

 

Here is a quick fix of your original post using StarTools wipe, mask, layer, and color modules.

 

w8.jpg


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#7 BenKolt

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Posted 23 April 2019 - 05:54 PM

Sorry, I can't help you with the color processing as I'm not familiar with this camera, in fact not all that familiar with color cameras.  (Is it possible something went wrong with the debayering step?)  It's a good image, however, and I hope you can figure it out and post again! 

 

As others have said, this is in Draco.  I've enjoyed imaging this in the past, and I spent a little bit of time reading up on it.  Some confusion arises about the NGC designation, however.  As I understand it, the galaxy itself is more commonly referred to as NGC 5907, whereas the central structure itself is designated as NGC 5906.  However, I've also seen it the other way around.  Interestingly, AstroBin labels both of these, Wikipedia only lists NGC 5907, and Stellarium only lists NGC 5906.  So feel free to take your pick!

 

Some common names include the Knife Edge Galaxy (my personal favorite), Splinter Galaxy (probably the most common).  I see that Stellarium also lists the Cat Scratch Galaxy, but I've never heard of that one before.  (Who's responsible for putting the names in Stellarium anyway?)

 

Best Regards,

Ben


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#8 rekokich

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Posted 24 April 2019 - 12:47 AM

Joshua,

 

I think the image is overexposed, has asymmetrical vignetting, and has poor color balance. Color balance can be corrected with any processing software. Vignetting can be corrected with flats, or with the Wipe module in StarTools, but you have to find out why it is asymmetrical. Star and galaxy colors are actually there. I simply oversaturated all light features 300% under a mask.

 

Meanwhile, your guiding is absolutely flawless, which is a great achievement in AP.

 

I hope to see more of your work.

 

Rudy



#9 Joshuasnoesky

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Posted 25 April 2019 - 10:51 AM

I finally get the colors right with Photoshop although not much color in the object.

Attached Thumbnails

  • NGC 5906_2.jpg

Edited by Joshuasnoesky, 25 April 2019 - 10:53 AM.


#10 BenKolt

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Posted 25 April 2019 - 11:00 AM

I finally get the colors right with Photoshop although not much color in the object.

Joshua:

 

Certainly an improvement in color balance, however it is quite dark.  What happens if you stretch and maybe saturate it a bit more?

 

Best Regards,

Ben



#11 Joshuasnoesky

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Posted 25 April 2019 - 11:09 AM

@Benkolt: i can see it's to dark.

i'll try tonight to light up the image.



#12 han59

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Posted 10 May 2019 - 11:12 AM

Used:

 

Telescope Skywatcher quattro 10 inch f/4

Camera ASI294MC Pro

No guiding

 

70 images of 60sec. stacked with ASTAP. No darks No flats.

 

My only problem is that i can't get my color into the image.

 

All comments appriciated.

 

If someone feels the urge to try the data i can load it up. Please let me know.

Latest versions of ASTAP have an automatic colour correction for background and stars. You can activate it also manually  with the option "colour correction" in tab "pixel math". 

 

--Han




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