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Abell 2218 - Galaxy Cluster

Abell 2218 is a massive galaxy cluster around 2 billion light years away, and contains thousands of galaxies. Its immense gravity bends and focusses the light from more distant objects, in a manner similar to light being refracted through a normal glass lens. This effect, called "gravitational lensing", was predicted by Albert Einstein.

 

The cluster is about 2 billion light years away, while the distant galaxy is much further away, seen as it was over 11 billion years ago

 

The image comprises of:

 

Luminance - 10 hours.

Red - 3 hours.

Green- 3 hours.

Blue - 3 hours.

 

 

Total - 19 hours

10 and 15 minute subs.

 

Acquisition - Planewave 12.5" CDK, PME, QSI 583 8WSG CCD, Lodestar auto guider, TSX, Maxim DL. Astrodon LRGB filters.

 

 

Processing Pixinsight 1.8 - I have had this data set around for a while and to be honest forgot about it.

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Uploaded on February 6, 2020