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Found 6 results

  1. GlassWalker

    Sun 20120809 CaK

    From the album: Sun

    Sun in CaK. Lots of spots...
  2. Managed to grab some H Alpha and Ca-K data whilst out this morning. Pretty windy at times so quite (pleasantly) surprised how well these have come out. Proms in Ha & Ca-K 6 Pane Ca-K full disk AR12490 @ 2000mm focal length.
  3. The bright thing in the sky appeared again. So I shot it. Baader CaK + ND5 filters, DMK41, Canon 100-400L Sun 20120721 Ha by Crestie Crazy, on Flickr DMK41, Celestron X-Cel 2x barlow element, Coronado PST Trying avistack for first time today so both stacked by it. Wavelets applied in Registax 5.1, finish in PSE9. Both files were just over a minute for over 1000 frames each. I have no idea what I'm doing in avistack but have now found the full auto mode. That'll do for now! This is now my best ever detail level in H-alpha. Still got a LOT more data to go through! Will concentrate on the Ha data, due to field of view limits with the barlow, I have to do the sun in two halves. So I've got two sets for prominences and another one for surface to go, then the nightmare of blending it that I never got working well... The CaK data still isn't sharp... in part this might be reaching the limits of the 100-400L and I need to get a bigger scope on the job, once I've ordered the appropriate mounting bits.
  4. GlassWalker

    Sun 20120729 CaK

    From the album: Sun

    Sun with Baader CaK filter.
  5. DMK41, ST120, Baader CaK filter. No flats, 2 frame mosaic. I had another go at the sun with CaK filter which I had limited success with previously. This time I tried using the SkyWatcher ST120 scope, and could improvise some ND5 solar film into the reduced aperture mask on the cap. This gave sharper output than I ever got before once I tilted it slightly to prevent internal reflections. I thought this was going too well, so I got the last scrap of solar film to make an almost full aperture filter... that was far lower contrast and I couldn't tell if the resolution was improved at all or not. I suspect there were too many internal reflections to manage without making a better filter holder that I used...
  6. GlassWalker

    Sun 20121006 CaK

    From the album: Sun

    Refined imaging technique... getting better fine details.
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