Asteroid in front of a galaxy?

http://legacysurvey.org/viewer?ra=177.6762&dec=-2.8633&zoom=15&layer=sdssco

That’s a bright star. Not sure what the blue bar is from – I’ve never seen a feature quite like that before! But basically all sorts of weird things happen around bright stars. They saturate the detectors, and then the extra charge bleeds down the rows of the CCDs. And then our processing software will do various weird things with the images because they are flagged as saturated.

cheers,
–dustin

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