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Found 3 results

  1. Been great to have a few nights of clear sky - I captured this last Wednesday/Thursday last week. I have only Just getting to grips with narrow band imaging/processing and I am sticking with tried and tested SHO Hubble palette for now, but very interested in the percentage combinations like the wide field recently posted by @Adreneline - Cave, Bubble and M52 - to name but a few. I'm assuming the colour palette combinations are implemented using PixelMath functions in PI - I will do some reading and jump into the processing threads to find out more I think. But for now here's my latest SHO narrowband - I left in a hint of green on the inner lighter Ha nebulosity as I like the transition into the Blue of OIII signal Capture Details 90mins each for Ha, OIII, SII , Optilong filters in 120s subs - 4.5hrs total Captured using RPi4 /INDI/EKOS Processed, APP,PI,PS CC Pixel scale: 6.067 arcsec/pixel
  2. Hi everyone. With the fantastic weather i managed to get out three nights in a row. Friday night i grabbed 2 hrs of Ha. Saturday night i got 1.5 hrs of Oiii. Sunday night i figured out my Ha, and Oiii astrodon filters are not parfocal leading to a waste of data. Anyway i got enough for now. My spacing is still out by about 1mm so not quite where i want to be with it. I first processed this as a HOO image, but i didn't fancy it, so i googled some methods and found one where you make a synthetic green layer and use duplicated Hue/saturation layers with clipping masks and somehow i ended up where i did. So this is 2 hrs of ha in 30 second subs and 1.5 hrs of Oiii in 30 second subs. Samyang 135, captured with a zwo asi 1600. Processed in photoshop Stacked in Dss. I hope you like. Richard.
  3. Hi all. This one has really been a major struggle. Between mistakes i made like trying to use a cheapo dual cigarette lighter adapter resulting in my dew heaters failing. My luminance data losing focus, perhaps a cable snagged, not really sure why it happened. Star shapes in the corners are poor mainly i think due to tilt caused by my zwo eos adapter (new geoptic one in the post). And of course one of my neighbors leaving his led moon on all night so i lost 5 hrs of rgb due to pink stars from the led (at least i think that's what caused it). The joys of astro photography. All those trials make it all the sweeter when you manage to pull an image from the data. Anywho this is 4 hrs of lum 150 second subs at 0 gain with Asi 1600 Samyang 135 3.5 hrs of rgb 150 second subs unity gain Asi 071 Samyang 135 5 hrs Ha 150 second subs at 300 gain Samyang 135 Stacked in Dss, processed in PI and PS. California Nebula lies approx 1,500 ly from earth in the constellation Perseus. Aptly named due its shape. Most likely illuminated by the bright blue star just above Xi Persei according to various sources online. Hope you like it. Richard.
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