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M51 Whirlpool Galaxy after collimation

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#1 EdmontonAB

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Posted 04 April 2013 - 10:33 PM

I present my M51 after collimating my AT8RC. I am very pleased with the amount of detail I was able to resolve in the core as seen in the high res photo. One dark band in the core is 3 pixels wide and at a scale of 0.86"/pixel, the band is only 2.5" across.

Image Taken: 31 Mar 13
Object: M51 The Whirlpool Galaxy in Canes Venatici
Mount: AP Mach 1
Imaging scope: AT8RC with CCDT67 reducer
Imaging FL: 1150mm
Imaging camera: Hypercam modded Canon T1i
Lights: 24 x 5 mins ISO 1600
Calibration: 25 flats
Guide scope: KWIQ Autoguider
Other details: Captured with Backyard EOS guided with Metaguide, stacked in DSS processed in Photoshop and Pixinsight LE

High Res 1600 x 1135

Attached Files



#2 Toxic Coolaid

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Posted 04 April 2013 - 10:35 PM

beautiful. Very nice detail!

#3 zawijava

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Posted 04 April 2013 - 10:51 PM

very very nice! the image has a depth of field to it that gives me a sense that the smaller Galaxy is of some distance behind M51. Usually images and/or viewing at the eyepiece make the 2 Galaxies appear to be on the same plane.

-Tim

#4 waassaabee

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Posted 04 April 2013 - 11:28 PM

Excellent work!! How much fun did you have collimating the AT8RC? Did you have to adjust the primary? That was a royal pain for me.

#5 srosenfraz

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Posted 04 April 2013 - 11:36 PM

Great job on this image, Steve - excellent details and very nice color, too.

#6 Nils_Lars

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Posted 04 April 2013 - 11:45 PM

You definitely have that rig running well Steve , some sharp details in M51 here.

#7 EdmontonAB

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Posted 05 April 2013 - 12:02 AM

Thank you everyone.

Gary, collimation was pretty easy. I tried to align all the optics and components visually using a collimation cap and by looking through the front of the scope. I adjusted both primary and secondary. When I checked collimation by taking a short exposure, it was grossly out. I used Metaguide and secondary adjustments to collimate a star at the centre and used BackyardEOS and primary adjustments for stars on the edge. Alternated between the two and within a couple of hours had everything aligned. If I had to do it all over again I figure it could be done in less then 1/2 hour. I was always worried about colllimating a scope but this was a great learning experience and have no fear of touching the mirrors.

#8 Tom and Beth

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Posted 05 April 2013 - 01:41 AM

Amazing level of detail!

#9 mmalik

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Posted 05 April 2013 - 01:51 AM

That looks very nice.

#10 snowcrow

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Posted 05 April 2013 - 06:42 AM

Awesome.. lots of detail!!

#11 ahopp

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Posted 05 April 2013 - 07:01 AM

Wonderful...

Tony

#12 jambroseus

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Posted 05 April 2013 - 07:17 AM

Super shot Ed, pinpoint stars and excellent detail!

John

#13 rflinn68

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Posted 05 April 2013 - 07:36 AM

Beautiful! Great job! :waytogo:

#14 steelhead

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Posted 05 April 2013 - 09:46 AM

Wow, great shot!

#15 TimN

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Posted 05 April 2013 - 01:02 PM

Nice detail and color!

#16 nofxrx

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Posted 06 April 2013 - 05:47 PM

Wow, Steve! That is an amazing image.. :bow::bow:
Great work.

#17 carlo rocchi

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Posted 07 April 2013 - 03:20 AM

Great shot, very impressive detail!

#18 waassaabee

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Posted 07 April 2013 - 06:52 AM

Gary, collimation was pretty easy. I tried to align all the optics and components visually using a collimation cap and by looking through the front of the scope. I adjusted both primary and secondary. When I checked collimation by taking a short exposure, it was grossly out. I used Metaguide and secondary adjustments to collimate a star at the centre and used BackyardEOS and primary adjustments for stars on the edge. Alternated between the two and within a couple of hours had everything aligned. If I had to do it all over again I figure it could be done in less then 1/2 hour. I was always worried about collimating a scope but this was a great learning experience and have no fear of touching the mirrors.

My first attempt proved a bit frustrating, but after understanding all the adjustments a bit better, it's very simple now. Great scopes!!

#19 bluedandelion

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Posted 07 April 2013 - 10:41 PM

Well done. That's a great image.

Ajay

#20 fco_star

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Posted 08 April 2013 - 06:11 AM

very nice picture

#21 Footbag

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Posted 08 April 2013 - 09:25 AM

Very nice! Tight detail in the core!

#22 Trevor Durity

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Posted 08 April 2013 - 10:49 AM

Superb image Steve. I can only dream of getting one as good as this.

#23 petemumbower

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Posted 08 April 2013 - 08:37 PM

Excellent work! Congrats on a gem.

#24 Qwickdraw

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Posted 27 April 2013 - 05:51 AM

Awesome !
It always amazes me that what we refer to as dust lanes are actually stars.

#25 AstroScience

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Posted 27 April 2013 - 06:14 AM

Steve, very well done, I like your processing very much. Details, Contrast and Colors, all seems well balanced.
Great job!






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