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Found 6 results

  1. I've been using a Quark chromosphere now since May and just wanted to share what an absolute delight this piece of equipment is (albeit I never seem to have enough cloud free sky to get it right on band). I had been using a ST80 but felt this was lacking and not a great match for the Quark in terms of focal length. I've since moved to a 120mm refractor and hope the images show how capable the Quark is.
  2. From the album: CCD venture

    A h-alpha shot of the Wizard nebula in Cepheus. ED80 - ATK16HR - Ha clip filter - EQ6 - finderguider 9x50mm PhD2 - photoshop - DSS.
  3. I present Pickering's (Should be Flemming's) Triangle. This is a combination of 2 hours HII and 2 hours [NII] as a mono image. I think this is valid as most NB filters pass both wavelengths. Data was acquired in 10 minute subs with the 130mm f/7 TS Photoline triplet and APM / Riccardi 0.75x reducer working at 683mm, through 3nm Astrodon filters and an SX Trius 694 camera cooled to -30C. The telescope was encoder-guided on the ASA DDM60 mount with 120 point sky-model and local models for each run. I already had 2 hour Sigma-Add stacks that had had gradient reduction (Adaptive Divide) applied to them so it was a simple matter to align and add them in AstroArt 5. The alignment borders were cropped off and another gradient reduction applied. Initial processing was using DDP, then two rounds of careful Histogram Stretch to push the background down a bit while brightening the highlights, with more gradient reduction in between each round.
  4. From the album: CCD venture

    A h-alpha shot of the Wall section of NGC7000 aka north america nebula. ED80 - ATK16HR - Ha clip filter - EQ6 - finderguider 9x50mm PhD2 - photoshop - DSS.
  5. Aenima

    Bi-colour NGC7000 Wall

    From the album: CCD venture

    A h-alpha and OIII shot of the Wall section of NGC7000 aka north america nebula. Processed to resemble the hubble palette colour scheme. ED80 - ATK16HR - Ha clip filter - EQ6 - finderguider 9x50mm PhD2 - photoshop - DSS.
  6. From the album: CCD venture

    A h-alpha shot of the pelican nebula in Cygnus. 2 x panel mosaic. 10 min subs. 9 x 10m + 9x10m stacks stitched together in ms ICE. ED80 - ATK16HR - Ha clip filter - EQ6 - finderguider 9x50mm PhD2 - photoshop - DSS.
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