Also see information about:

• the stellar population.
• constructing these images.
• single filter images.

This image is created using 3 broadband filter (B V and R) images and emphasizes the stars, rather than the surrounding nebula. The hottest and most massive (larger than six times our Sun) stars have bluish colors and have been enclosed in blue pentagons, stars with intermediate masses (say, between 2 and 6 times the Sun) are enclosed with green squares, and some of even less massive stars (less than twice the mass of the Sun) of the same generation are recognizable within the red circles used to denote them.

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