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JohnC64

Pacman NGC 281 in Ha

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Well its been a long time coming but I have managed to get back into the obsy and start imaging again. :-) 

I was very rusty setting up and my tracking started off good and then started to fail as the target was straight overhead.

Anyway without much ado - Here is the result - Just 3 x 10 min subs (The rest got scrapped to the poor tracking) with a bit of pixel bodging in PI

Cheers John

MN190, QSI683 with Astrodon 3nm Ha

integration.jpg

 

 

 

 

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    • By Xiga
      Hi guys
      First things first, apologies for posting this one out of season. A combination of no astro dark, crappy weather, and being busy at work has meant that there's no imaging getting done at all these days. So, i've had to turn to old data to re-process, and this data set was an obvious candidate as i was never happy with how it came out originally. And looking back on it now with fresh eyes, boy did it need it! 
      Nikon D5300, SW 80ED, HEQ5-Pro. 
      3 x 1200s, 2 x 1380s, and 4 x 1500s of Ha
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      7 Hrs 54 Mins in Total. 

      Stacked in APP and processed in PS. 
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    • By alan4908
      This is a narrow band image with Red mapped to Ha and Blue mapped to OIII.  After balancing the Ha and OIII data in Pixinsight via Linear Fit, I generated a synthetic green in PS via Carboni's actions.  It represents 15 hours integration time and was taken with my Esprit 150.  
    • By alan4908
      I've always found the Pacman nebula (NGC281) very difficult to process in RGB since I always tend to end up with a low contrast image that is largely devoid of detail.  So, since I prefer realistic looking colours, I decided to try out a narrow band approach with Red mapped to Ha and Blue mapped to OIII.  After balancing the Ha and OIII data in Pixinsight via Linear Fit, I generated a synthetic green in PS via Carboni's actions.  The result below represents 15 hours integration time and was taken with my Esprit 150.  To illustrate the amount of detail revealed, I've also included a small crop of the central region.
      Alan

      NGC281

      NGC281 (crop)

       
      LIGHTS: 9 Ha, 21 OIII x 1800s, DARKS:30, BIAS:1000, FLATS:40 all at -20C. 
    • By glowingturnip
      Wakka wakka wakka...

       

      22x 600s Ha, 11x 420s L, 10x 300s R, G and B, darks flats and bias, equipment as per sig, pixinsight.
       
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      The Pacman Nebula (NGC 281) is a bright emission nebula and part of an H II region in the northern constellation of Cassiopeia and is part of the Milky Way's Perseus Spiral Arm.  The nebulosity is associated with an open star cluster, several Bok globules and a bright quintuple star system.  It lies approximately 9200 light years away.
       
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    • By alan4908
      My first attempt at NGC281 was with my ED 80 and taken with my colour camera - and I definitely thought the result looked liked the Pacman.
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      Alan
      LIGHTS: Ha:8, OIII:10 x 1800s, DARKS:30, FLATS:40, BIAS:100 all at -20C.
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