NGC 1499 - California nebula

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Technical Data
Optics Pentax 75
Focal Lenght 500mm
Focal Ratio f/6.7
Exposure Time 2h10min (single exp of 10 min)
CCD Canon EOS 5D with baader filter
Location Bogli (PC, Italian Appennines) at 1350 m height
Date
25 October 2008
Mount Gemini G-41
Tracking ST4 on a 80mm f/5 refractor
Temperature and humidity T=+5 to +9 °C, RH=75-100%
Sky brightness at zenith (with SQM-L) 21.3 mag/arcsec^2
Notes -


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