The Pipe nebula is a HUGE dark nebula expanding about 10 degrees in the sky.
This image is only 1.5x1.5 deg showing the central part which is normally seen as a dark black patch.
By long exposure - the majority of the nebula becomes transparent.
RGB image
40 min for each color (BIN 1)
Total of 2:00 Hrs
Imaged with the 16" f3.75 Dream Astrograph.
Apogee Alta U-16M camera.
Imaged from Tivoli farm in Namibia June 2014