The California Nebula  in Perseus

Imaged from my backyard in suburban west Knoxville  on September 9/10, 2002.
 

Astro-Physics 1200 GTO mount with Takahashi FSQ 106. SBIG ST 10XME CCD with CFW-8a
3nm Custom Scientific Hydrogen Alpha filter.

Two image mosaic
Exposure ( 8 x 1200 seconds) for each image used in mosaic. Guiding with onboard guider chip.
Acquisition and calibration in Maxim DL/CCD, levels and curves adjustments in PS

Higher resolution image
 
 

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