Celestial hemisphere:  Southern  ·  Constellation: Centaurus (Cen)  ·  Contains:  IC 2948  ·  lambda Cen nebula
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Running Chicken Nebula (IC 2944), Bruce Rohrlach
Running Chicken Nebula (IC 2944)
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Running Chicken Nebula (IC 2944)

Getting plate-solving status, please wait...
Running Chicken Nebula (IC 2944), Bruce Rohrlach
Running Chicken Nebula (IC 2944)
Powered byPixInsight

Running Chicken Nebula (IC 2944)

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Description

This version of the Running Chicken nebula imaged over an hour and a half night before last, and its open star cluster, is rendered using a different colour palette to the previous posted version below. Here, hydrogen alpha light emissions are mapped to 100% Red and 100% Green channels, the combination (of red and green) yields the yellow hues that map hydrogen gas distribution within the nebula. Oxygen III light emissions are mapped to the blue channel whilst Sulphur II light emissions are mapped to the green channel.

The very small looking and very dark spots in the top-centre area, embedded within the nebula, are Bok globules which are areas of densely concentrated dust and gas from which star formation may take place. They are named after Bart Bok (now that's a name). Bok globules typically contain molecular hydrogen, carbon oxides and helium and around 1% by weight of silicate dust, and most commonly are associated with the formation of double or multiple star systems.

The largest Bok globule in the Running Chicken nebula (IC2944), which is located just above the 2nd-down-from-top of the 4 vertically-aligned bright stars, is actually 2 Bok globules aligned along the line of sight, each is around 1.4 light years in its long dimension and collectively these 2 overlapping Bok globules contain enough gaseous material to form around 15 solar masses. Apparently in 2MASS images (2-micron all sky survey) 6 stars are visible 'within' the largest globule.

The universe is astounding !

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Running Chicken Nebula (IC 2944), Bruce Rohrlach