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A side by side comparisson of the whole data on the left and only o3 on the right.
Imaged with the 16" f3.75 Dream Astrograph.
Apogee Alta U-16M camera.
O3 for 4 hrs (BIN 2)
Ha 60 min (BIN 2)
RGB 10 min per channel
Total of 5.5 hrs
Imaged from Tivoli farm in Namibia May 2015.
| Guest | 24-Jun-2015 01:56 | |