Why does this galaxy have an orange half and a blue half?
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by bd4231
The left side of this galaxy has an orangish-red color, but the left side of the galaxy has more of a blue color? What is causing this?
Posted
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by Budgieye moderator
This is an artifact, caused by the narrow bandwidth of the data as it is compressed for these images. The original is better.
http://skyserver.sdss3.org/dr8/en/tools/explore/obj.asp?id=1237651252599980968
Posted