Monday, May 23, 2011

APOD 4.5


The lagoon nebula, as pictured above, is an extremely active star-forming region located in the Milky Way Galaxy and is classified as a M8 object.  This particular image was created by the Argentinian astronomers Julia Arias and Rodolfo Barbá who used the Gemini South telescope with the Gemini Multi-Object Spectrograph.  They created this final version as a composite image of various photographs taken by two narrow band filters that are sensitive to hydrogen.  The galaxy has been referred to as "psychedelic" because the photons had to travel a distance of 5,000 light years in order to appear in front of this camera, which makes it an actual flashback as the distance is so large.

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