M78 for ESO Processing contest. WFI camera on 2.2m telescope

M78 nebular complex in Orion


La Silla 2.2m MPG/ESO telescope, Cassegrain focus (F=8009mm).


5x3min Red, 3x3min Green (V), 3x3min Blue(B)


FWHM = 1.4"


Camera: WFI 8k x 8k mosaic CCD.


Image was calibrated, and Stacked from RAW data via IRAF software, composed/ white-balanced in Iris, and post-processed in PhotoShop.


Post processing was made in 50% scale (4228x4114) because image was quite oversampled (nothing to lose in 50% scale) and my PC is terrible weak for 67Mpix 16-bit image's multi-layered photoshoping :-)


This is a sample in ~12% resolution.

Large version is here (50% of original FITS, 12Mb)


(C) ESO/Igor Chekalin

  • dacanata 4y

    Excelente trabajo!!! Una foto realmente hermosa!!!
  • Elisa Jimenez 4y

    pretty awesome work! *thumbsup*
  • Igor Chekalin 4y

    Thanks for all for congratulations!!!

    Certainly I'll make photos during Chile trip, and publish here with detailed comments.

    But ESO gave me an option to choise date. So I decided to go on autumn-winter (in northern hemisphere) I need this season for my astrophotography plans ;-)
    It's not final decision, now I thinking about photosession plans, but deep RGB Orion mosaic (to finish this project), LMO, Eta Carinae - all best targets for mobile setup are winter time and now it's too late for current winter.
  • Jean-Christophe LAMBRY 4y

    Congratulations to the winner !
    "Bon voyage" to Paranal.
    Will be your first trip in southern hemisphere ? If yes, what a great experience to discover some new celestial objects !
  • Oliver Hayden 4y

    Gorgeous! Amazing detail and contrast.
  • Franco GDL 4y

    Great work
    congratulations and maybe will see you there
  • Fermin Raya 4y

    beautiful simply beautiful
  • tzaranek 4y

  • rob pfile 4y

    congrats on the APOD! outstanding processing.
  • Pat Gaines 4y

    Congrats on APOD!
  • Elisa Jimenez 4y

    saw your picture on APOD today! congrats :D
  • Roberto García 4y

    congrats on APOD. A great picture. Quien tuviera ese equipo....?
  • Ś3ềẻď 4y

    yes nice nice
  • Hypnostar 4y

  • RioParadiso Studio 4y

    My friend... did you win a trip to Chile with your photos man?! At least an up and down to Mars would make justice to it!!! Dream Work
  • ikietoy 4y

    I think this is the most stunning of any of the photographs published here. BRAVO!
  • Jan Vavruša 4y

    Awesome image! Congratulations!
  • Igor Chekalin 3y

    Thanks for all! It was great pleasure to work with such perfect RAW data from ESO.
    2.2-m MPG/ESO telescope at La Silla is exactly what I call "dream of crazy amateur astronomer". Because of it's "Lens speed" of 1:3.6, enormous widefield CCD which is cooled blow -104C and of course location under astronomically excellent sky.

    BTW. Online reports about my ESO's prize trip to Chile will be covered online in my facebook page: www.facebook.com/profile.php?id=100001700637639
  • jleo3 3y

  • Silvia Schnyder-Gáspár 2y

    fantastic shot!
174 faves
Taken on November 11, 2010
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