I'm not too sure I would want to see something that is blue shifted to any extent, because that means that object is very big. In order to see it from any appreciable distance, even from 1 light year away, it would have to be very big. If it's that big, and coming toward this solar system, it's not going to be good when it gets here.
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Either very big, or highly energetic.. either way it'll be something VERY EXCITING!! :D
Quite true!