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Leo Triplet from sub-standard skies here in NJ!

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#1 Daniel Dance

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Posted 20 March 2018 - 05:44 PM

Finally finished my Leo Triplet this year.  I managed to get color data last year, but bad weather prohibiting me from getting luminance frames.

This was captured with a Takahashi TOA-130 with f5.0 reducer, and QSI-683 CCD.

 

Luminance:  16 x 5 minutes (Atsion Ranger Station, NJ - SQM 20.3 average)

Color:  12 x 5 minutes each of R, G, B (Pemberton Lake, NJ - SQM 19.5 average)

 

Enjoy!

 

39117973400_6595b32733_b.jpgLeo Galaxy Triplet 2018 by Daniel McCauley, on Flickr

 


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#2 Astroman007

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Posted 20 March 2018 - 05:58 PM

Beautiful scope and beautiful image! Love the fine coloration and details. Thanks for sharing. waytogo.gif



#3 TOMDEY

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Posted 20 March 2018 - 06:10 PM

Magnificent! Your rendering is superb aesthetic.  Tom



#4 schmeah

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Posted 20 March 2018 - 06:32 PM

That’s a great image! One of the best I have seen of the triplet. But I would kill for your “sub standard” skies. I didn’t realize there were skies even that dark in NJ.

 

Derek



#5 Astroscrub

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Posted 20 March 2018 - 06:39 PM

Wow, that's fantastic.bow.gif



#6 nucdoc

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Posted 20 March 2018 - 09:35 PM

Wow, very nice 



#7 Dan G

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Posted 20 March 2018 - 10:08 PM

Well done!  Our skies do make obtaining quality data so difficult.

 

Dan in NY



#8 BillD17

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Posted 20 March 2018 - 10:26 PM

Awesome image. Great detail and color.



#9 Cristina Cellini

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Posted 21 March 2018 - 02:45 AM

Very nice image!

 

Cristina



#10 DMach

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Posted 21 March 2018 - 03:01 AM

Nice data indeed!

 

I had an opportunity to buy a second hand TOA-130 a few months ago, but passed as I needed to prioritise a new mount. Your image brings about a sharp pang of regret lol.

 

That’s a great image! One of the best I have seen of the triplet. But I would kill for your “sub standard” skies. I didn’t realize there were skies even that dark in NJ.

 

Derek

 

I had a similar thought - my skies give a SQM-L reading of around 17.5 to 17.8  :(

 

I think Daniel might have been referring to the weather, rather than light pollution?  :)



#11 Daniel Dance

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Posted 21 March 2018 - 08:09 AM

Thanks everyone for the kind comments. 

 

With regards to my comment on substandard skies, what I was implying was that the captures for this object were done in relatively poor viewing locations compared to some of the better locations we have here in NJ and despite some local astrophotographers I know locally that say its impossible to get good images from these particular locations (and also claim these places SUCK), I wanted to make known even with skies that are less than ideal, good images can be obtained.

 

My conclusion is that you really don't need really dark skies to get really good images.  That's simply a myth.  Of course, the Leo Triplet is a relatively bright object, and if you are looking to capture extremely faint dust and nebula, then yes, you do need the really dark skies.

The better locations in my area have skies that are around 21.0 - 21.3 typically as measured with my SQM meter.

Dan


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#12 Daniel Dance

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Posted 21 March 2018 - 08:19 AM

Here are the SQM readings for the past sunday night.

 

39128732160_ae4196f704_c.jpgAtsion Lake, NJ SQM Readings by Daniel McCauley, on Flickr



#13 elmiko

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Posted 21 March 2018 - 09:10 AM

There's still hope for us that live in light pollution. Great job Daniel!



#14 elmiko

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Posted 21 March 2018 - 09:12 AM

Daniel, what did you use to process?



#15 Chrstphrlee

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Posted 21 March 2018 - 10:03 AM

Nicely done Dan. Inspiring.



#16 Daniel Dance

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Posted 21 March 2018 - 10:03 AM

Daniel, what did you use to process?

Great question.  I used both PixInsight and Photoshop. 

 

In PixInsight, I generally process a certain step several times with different adjustments, and then I use photoshop to fade and selectively mask each variation to my liking.  It takes a long time, but I find photoshop to be much better at doing this sort of thing than PixInsight.



#17 Daniel Dance

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Posted 21 March 2018 - 02:47 PM

Here is a close-up of NGC 3628 paired with star, HD 98388 which has an apparent magnitude of 7.11.

 

I performed a little more sharpening on the galaxy itself in this version to make it "pop" a bit more.  It has that "oil canvas" type look to it.  I think it looks cool that way.

 

39134743600_a2ac82b957_b.jpgNGC 3628 Galaxy by Daniel McCauley, on Flickr


Edited by Daniel Dance, 21 March 2018 - 02:48 PM.

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#18 Mert

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Posted 21 March 2018 - 02:53 PM

Love your images, great stuff :waytogo:



#19 bill w

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Posted 22 March 2018 - 01:03 AM

perfect set up for the triple



#20 Seanem44

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Posted 22 March 2018 - 08:25 AM

I'll take those sub-standard skies if you don't want them...

 

Beautiful image.  Great job!!!



#21 gundark

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Posted 22 March 2018 - 02:58 PM

Just beautiful, Daniel. You make it look easy.

#22 StarMike8SE

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Posted 23 March 2018 - 08:37 AM

Wow, great job!!   Love the color




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