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M31  (NGC 224),  The  Andromeda  Galaxy,  

in  Andromeda

 Date  2009-08-19
 Scope

 Astro=Physics 130 EDFS on a A-P 1200GTO mount, 

   guided with the internal guide chip. MaxIm 4.11 control.

 Exposures 

 SBIG ST-10XME camera with CFW-8a filter wheel. Six each of R, G, and B, 

  1x1 binning,  at 1 minute and 5 minutes. 108 minutes total exposure.

 Processing   Combined and composited in MaxIm; levels and curves in PhotoShop

 Date  2004-08-17
 Scope

 Nikkor 180 mm telephoto lens, piggybacked on a A-P 1200GTO mount, 

   guided with an ST-4 on a separate guide scope. MaxIm 4.03 control.

 Exposures 

 SBIG ST-10XME camera with CFW-8a filter wheel. Six each of R, G, and B, 

  2x2 binning, plus six each of clear luminosity frames at 1 minute and 5 minutes, 

  1x1 binning. 126 minutes total exposure.

 Processing   Registered in RegiStar, composited, levels, and curves in PhotoShop

 

The above is a CCD image; the one below is from film. The Andromeda galaxy is the nearest major galaxy to our own Milky Way galaxy and is "only" about 2.5 million lightyears away (2.9 million according to more recent data). That means that the photons that hit the sensors to make these pictures left their source 2.5-2.9 million years ago! It is about 50% larger than our galaxy and has about 400 billion stars, as opposed to our 300 billion.

 

 The above was my first attempt with Konica Centuria 800 film. It looks like it has considerable potential for astrophotography. Centuria 800 is somewhat grainy, so stacking is necessary, but no Photoshop blurring (or unsharp masking) was used on this image. As it turned out, I shifted to CCD digital imaging in 2002, so further experiments with film were neglected.

 Date  2001-08-22, 25
 Scope  Astro-Physics 130 EDF @ f4.5 on A-P 1200GTO mount, guiding with ST-4     
 Exposures 

 2 Konica Centuria 800 (1- 30 min, 1- 60 min) 

 Processing   Stacked in RegiStar, stretched in PhotoShop

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