Huge, elongated halo around this otherwise ordinary looking edge-on ~ somewhat bizarrely, said halo disappears on DR10

Interesting things
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https://www.legacysurvey.org//viewer/?ra=22.4483&dec=-6.9811&layer=ls-dr9&zoom=13

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Screenshot_20240506-102518_Chrome
Screenshot_20240506-102518_Chrome1200×935 391 KB