Thursday, November 5, 2009

APOD 2.1

This picture "Reflection Nebula in Cepheus" is particularly interesting to me for several reasons. Foremost among these, is the fact that it depicts a very peculiar phenomenon in space, which is an 'dusty curtain' in space. This is created by large pockets of interstellar dust in the area which block light from background stars. The curtain also scatters light given off by a star in the nebula, that is part of the constellation Cepheus, which gives the edges of the phenomenon a bluish tint. The curtain itself is almost 1,400 light years away in the constellation Cepheus. This fact makes the picture just that more interesting to me, considering that we have been studying and identifying the constellation Cepheus for weeks now in our Constellation Quizzes. While perusing the relevant links in the article, I discovered that the 'dusty curtain' is in fact a type of nebula known as a reflection nebula, and that they actually move around through space.

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