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Wednesday, July 21, 2010

IC 5150, a Planetary Nebula

IC 5150, a Planetary Nebula in constellation Grus.

This rarely imaged southern planetary is dimmish, magnitude about 12. Due the full Moon, it's imaged with narrow band filters. Only H-a and O-III are used to compose the natural bi-color version.
This object will be better imaged with a broad band LRGB, since it emits some strongish continuous spectrum but as mentioned, the full Moon prevent me to do so.
I haven't seen any narrow band color images of this earlier! 

The telescope and technical information:

16" RCOS ja Apogee U9000 camera. 
LRGB combo.
H-alpha 3x1200s, Dark and artificial Flat calibrated.
O-III 3x1200s, Dark and artificial Flat calibrated.
Raw data is shared with "Team Finland"

Processing workflow:
Image acquisition, MaxiDL
Stacked and calibrated in CCDStack.
Levels, curves and color combine in PS CS3.

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