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M33


alan4908

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The spectacular M33 Triangulum galaxy contains some of the largest known stellar nurseries, the most prominent is NGC 604 which is about 1500 light years across.  The hydrogen gas within the nebula is ionised by ultra violet radiation from a cluster of about 200 massive blue stars (if you look very closely at the image below you can almost see some of them :happy11:). Since I couldn’t fit M33 into my field of view, I decided to centre the image on this object.

Some of the other prominent HII regions within M33 are also marked in the annotated image below.

The LRGB image below was taken with my Esprit 150 and represents about 8 hours integration time.

Alan

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LIGHTS: L:18, R:13, G:9, B:9 x 600s all at -20C.

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