Veil nebula

Click on the image for hires.

Technical Data
Optics Schmidt camera 400/300/615 (Zen optics)
Focal Lenght 615 mm
Focal Ratio f/2,0
Exposure Time Total 11,5 h. Mosaic of 4 panels, 69 selected frames of 10 min each.
Sensor Kaf-6303
Filters H-alpha 6nm Astronomik, selected for f/2
Chip temperature
Location Tradate (VA, in Pianura Padana, Italy) at 300m height
Date and time of exposure start 5 nights: 1, 8, 9, 24, 29 September 2008
Mount Astrosystems Fork
Tracking Webcam Vesta Pro B/W on Pentax 75 refractor
Temperature and humidity T=+20 to +25 °C, RH=50 to 80 %
Sky brightness at zenith (with SQM-L)18.5 - 19.0 mag/arcsec^2
Notes -

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