Near Milky Way center

Mouse over for the main objects. Click on the image for hires.

Technical Data
Optics Pentax 75
Focal Lenght 500mm
Focal Ratio f/6.7
Exposure Time 1h (single exp of 10 min)
CCD Canon EOS 5D with baader filter
Location Colle dell'Agnello (CN, Italian Alps) at 2700 m height
7 Aug 2010
Mount Gemini G-41
Tracking ST4 on a 80mm f/5 refractor
Temperature and humidity T=+7°C, RH=50%
Sky brightness at zenith (with SQM-L) 21.4 mag/arcsec^2
Notes Strong wind
The Milky way center is at about 3° West of the center of this image. North is at top-left corner. The brightest star in the top part is TYC 6849 1230 with a V mag. of 5.76. The small cluster near the dark nebula LDN 97 is NGC 6520.
Diffraction spikes with StarSpikes software.

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