The Whirlpool Galaxy M51 LRGB

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This is the RGB + Luminance. I have to say this has been one of my toughest projects to process. If conditions allow I will be adding HA to this soon.

Total Exposure time 10 hours and 40 minutes.

Incidentally I am using CCD Stack for the very first time and I am impressed, I might have to go back and reprocess everything now:)
I hope you like the result.

Clear Skies
Terry Hancock

Image details
16 x 10 min each RGB un binned
16 x 10 min Luminance un binned

Location: DownUnder Observatory, Fremont MI
Date of Shoot 12th,13th,18th and 19th April 2012
Camera: QHY9M monochrome CCD
StarlightXpress Color Filter Wheel
Scope: Astronomy Technologies Astro-Tech 10" f/8 Ritchey-Chrétien astrograph
Astro Tech 2" Field Flattener.
Autoguided using QHY5 autoguider, StarlightXpress Ultra Slim Off Axis guider
Paramount GT-1100S German Equatorial Mount (with MKS 4000)
Image Aquisition software Maxim DL5
Registed, Calibrated and Stacked in CCD Stack
Post Processed with Photoshop CS5

Astrosirius, Adam Garelick, and 35 other people added this photo to their favorites.

View 20 more comments

  1. Terry Hancock 35 months ago | reply

    thank you Denis for the nice comment
    thanks Rob, I know exactly what you mean, my wife says it looks like a snail on it's side :)
    thanks Gabe, I was using Deep Sky Stacker for stacking previously but lately it was giving me a lot of issues with hot and cold pixels, also I was using Registar for registering and combining which was also giving me problems with poor registration.
    thanks Aris
    thanks Peter
    thanks Luca,
    thanks Sebastian
    thanks Chuck
    hey thank you Sander!
    Thanks all for the comments, happy shooting and clear skies

  2. Space Ritual 35 months ago | reply

    Thank You for Posting at DIMEX

    Well done. Excellent Image!
    AVP Manhattan Beach 6454r-DIMEXFlickr
    Seen in DIMEX group.

  3. Mister Joe 35 months ago | reply

    Absolutely astounding as always. While you're at it, build some Tesla Coils or something and devise a way to bring us to the stars and back!

  4. Pegaso0970 35 months ago | reply

    Great shot Terry ... try to remove the flattner and you'll gain a lot in terms of color balance ..
    Enjoy CCDStack ....

    All the best,

  5. Terry Hancock 35 months ago | reply

    thank you Jeff
    thank you Joe,
    thank you Leo

  6. Steve Byrne's Images 35 months ago | reply

    Fantastic image, Terry! CCDStack2 is the way to go. Think of all those images you have to reprocess! Better make a separate reprocess gallery!!!!

  7. Terry Hancock 35 months ago | reply

    thanks Steve, yes great software especially for what we do, I'm still getting the hang of it but I'm a bit slow :) the Adam Block tutorial sure helps! clear skies mate!

  8. Jacob Marchio 35 months ago | reply

    Great image! what makes CCD Stack better than Deep Sky Stacker?

  9. Lotus ( beleza,pureza,simplicidade ) [deleted] 35 months ago | reply

    Gorgeous !

  10. Dangerous Dave Astrophotography 35 months ago | reply

    Excellent, some great background galaxies

  11. Terry Hancock 35 months ago | reply

    thanks Jacob, unless you are using a monochrome CCD I don't think it is any better than Deep Sky Stacker. I mentioned above the problems I was having prior to switching.
    thanks Lotus for the nice comment
    thanks Dave, clear skies.

  12. astrochuck 35 months ago | reply

    Terry where's the Ha, I can't wait any longer :)

  13. Terry Hancock 35 months ago | reply

    Hi Chuck, hahahaha tell me about it, we have had rain non stop for the past 2 weeks. Supposed to be clear tonight but the clear lie chart lies! :(

  14. starrypix 35 months ago | reply

    Amazing shot! bravo........

  15. mtnrockdhh 35 months ago | reply

    Sweet image Terry! I see IC4277 and IC4278 to the left of NGC 5195. Who is the little galaxy above and right of NGC 5195, at about 1 o'clock?

  16. Terry Hancock 35 months ago | reply

    thanks so much asadollah, keep up the amazing work!
    thanks David, I have no clue actually :) nothing comes up either in thesky planetarium or
    I would be interested to know if anyone can shed some light!

  17. John.R.Taylor ( 35 months ago | reply

    I used the image solving script in Pixinsight on your image and it drew a blank on that galaxy too.

  18. Brightway Photography 34 months ago | reply

    Wow Terry ! Great resolution ! Very well treated. It just blow me away like NGC 5195!

  19. J.J. Mantero 34 months ago | reply

    Vista en:
    Seen in:
    Astrofotografos del Mundo/ World´s Astrophotographers

    muy buen trabajo Terry, color, definicion, etc.......

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