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Yours truly

NGC  1499,  The  California  Nebula,

In  Perseus

     The California Nebula is another huge nebula, 140 x 40 arcmin, and does not fit the field of view of most telescopes. It was an excellent test target for my recently acquired Nikkor 180 mm telephoto lens, set up on the CCD camera with the Mandel Adapter. Visually, this is a very dim nebula but it is easy to pick up in red or hydrogen alpha light and a CCD camera. 

 Date  2003-02-05
 Optics

 Nikkor 180 mm lens at f/4 with ST-10XME CCD camera (Mandel Adapter) at -15 C 

  piggy-backed on the  A-P 1200 GTO  mount.   Guided with the ST-4 guider on a guide scope.         

 Exposure

 12 x 10 min H-alpha (luminosity) plus R 7x10, G and B 6x10 min (all1x1 binning).  

   SBIG filters in SBIG CFW-8 filter wheel.   

 Processing  

 Raw frames debloomed with Wodaski's Debloomer plug-in. Stacked and RGB combined in MaxIm 3.08 

  with R=1.2, G=1.0, B=1.65 weighting. Stretched with levels and curves in  PhotoShop  7.0.    

 

 

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