Hemisphere:  Southern  ·  Constellation: Sagittarius (Sgr)  ·  Contains:  Lagoon Nebula  ·  M 8  ·  NGC 6523  ·  NGC 6526  ·  NGC 6530  ·  The star 7Sgr  ·  The star 9Sgr

Image of the day 06/17/2021

Getting plate-solving status, please wait...
    Messier 8 (Lagoon Nebula) in Ha[OIII] Bicolor, 



    
        

            jheppell
    Messier 8 (Lagoon Nebula) in Ha[OIII] Bicolor
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    Messier 8 (Lagoon Nebula) in Ha[OIII] Bicolor

    Image of the day 06/17/2021

    Getting plate-solving status, please wait...
      Messier 8 (Lagoon Nebula) in Ha[OIII] Bicolor, 



    
        

            jheppell
      Messier 8 (Lagoon Nebula) in Ha[OIII] Bicolor
      Powered byPixInsight

      Messier 8 (Lagoon Nebula) in Ha[OIII] Bicolor

      Technical card

      Imaging telescopes or lenses: Skywatcher 250/1000 - Quattro C10

      Imaging cameras: QHY268M

      Guiding cameras: QHYCCD QHY5III290M

      Software: Registar 1.0  ·  PHD2  ·  Abobe Photoshop CS5

      Filters: Antlia 3nm Pro OIII 36mm  ·  Antlia 3nm Pro Ha 36mm

      Accessory: Skywatcher Aplanatic Coma Corrector


      Dates:May 20, 2021

      Frames: 122x300" (10h 10')

      Integration: 10h 10'

      Avg. Moon age: 8.10 days

      Avg. Moon phase: 57.55%


      Basic astrometry details

      Astrometry.net job: 4579741

      RA center: 18h 3' 57"

      DEC center: -24° 17' 24"

      Pixel scale: 0.771 arcsec/pixel

      Orientation: 359.440 degrees

      Field radius: 0.749 degrees


      Resolution: 5817x3878

      Locations: Home backyard, Perth, Western Australia, Australia

      Data source: Backyard

      Description

      This has to be one of my favourite narrowband targets. Messier 8 (Lagoon nebula) in Ha[OIII] bicolor. I imaged this target last year when I had the Canon 250D/Astronomik 12nm clip-in NB filters as my imaging system. Now that I have the QHY268M/Antlia 3nm NB filters I couldn’t resist but to have another go! My understanding of the bicolor process has been that the RGB channels are assigned HOO. But after experimenting with different approaches, I found that I could get a result I liked even better if I went HHO and then processed in Photoshop in a manner not too dissimilar from the way I process my SHO images. Probably just boils down to personal taste!

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      Messier 8 (Lagoon Nebula) in Ha[OIII] Bicolor, 



    
        

            jheppell