Known (see SIMBAD) but very bright and distanced in terms from arc to host, and also imaged by HST

https://www.legacysurvey.org//viewer/?ra=51.8653&dec=-13.4361&layer=ls-dr10&zoom=15

You can see the counter lens below, at 51.8631, -13.4484


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Didn’t know there were original NASA images to go with it

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Jane Rigby got some notes to it
https://www.cosmos.esa.int/documents/739790/758041/RigbyJ.pdf/fbea7780-20bc-437f-81ee-dd93d5b2d2e7

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