Veil nebula East, NGC 6992

Click on the image for a higher res version

Here are two details at 100% resolution:
A spiral shaped blue-green (OIII) filament.                                         The brightest and most complicated part.

Technical Data
Optics TEC 140
Focal Lenght 1011 mm
Focal Ratio f/7.2
Exposure Time 2h10m (single exp of 10 min)
CCD Canon EOS 5D with baader filter
Sensitivity 800 ISO
Location Colle dell'Agnello (CN, Italian Alps) at 2700 m height
3 August 2011
Mount Gemini G-41
Tracking Lodestar on an 80mm f/5 refractor
Temperature and humidity T= +8°C, RH=80%
Sky brightness at zenith (with SQM-L) 21.5 mag/arcsec^2
Notes -

HTML Editing and Publishing by Lorenzo Comolli. Email me at
Back to Main Page