Comet C/2011 L4 (PanSTARRS) after sunset - 50 mm - 15 March 2013

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The comet is setting above the far peaks of the western Alps in Piedmont. The high peal at left is Monviso, 3841 m. The lights below are from the cities of the province of Cuneo, in the Po valley.

Technical Data
Optics Canon 50 mm f/1.8 mkII (stopped down to f/3.5)
Focal Length
 50 mm
Focal Ratio f/3.5
Exposure Time 3.2 s (single exp)
CCD Canon EOS 350D, Baader modified - sensitivity 1600 ISO
Location Capanne di Cosola (AL, Italian Apennines), at 1500 m height
Date
 15 March 2013, 18.30 UT
Mount Fixed tripod
Tracking -
Temperature and humidity T= -11 °C, RH=49%
Sky brightness at zenith (with SQM-L) Bright sky after sunset
Notes -

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