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Two colour composite image of the surrounding region of the IRC4954/4955 Nebula with 9 and 18 micrometre data

IC4954-fig12

Two colour composite image of the surrounding region of the IRC4954/4955 Nebula with 9 and 18 micrometre data. The size of this image corresponds to 150 light years. The brightest region is IC 4954/4955. White dots are infrared stars. Notice the dark hollow region with a diameter of around 100 light years in the centre of the image.

Results: Star formation history revealed by AKARI wide-area survey observations – Star formation over three generations in the nebula IC4954/4955 in the constellation Vulpecula –