NGC 6604, LBN 72 and star cloud

Click on the image for a higher res version
This large nebula is joined to a star cloud and both are less than 2° north of M16, the Eagle Nebula. The faintness of the nebula seems to compenetrate to the yellowish clouds of stars.
NGC 6604 is a small open cluster, near the center of the image, toward up-left. The main red nebula is LBN 72, while the small and faint parts on the upper-right part are LBN 71. Both are part of the large complex LBN 70 that comprehend also M16.
Technical Data
Optics TEC 140
Focal Length
 1011 mm
Focal Ratio f/7.2
Exposure Time 1h10m (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
Date
 23 August 2012
Mount Gemini G-41
Tracking Lodestar on an 80mm f/5 refractor
Temperature and humidity T= +13°C, RH=45%
Sky brightness at zenith (with SQM-L) 21.4-21.5 mag/arcsec^2
Notes South up. I usually prefer images with North up, but this one really pleases me better on this side.

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