Ring or a lens?

https://www.legacysurvey.org//viewer/?ra=229.3105&dec=21.5858&layer=ls-dr10-grz&zoom=15

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Congratulations, you found the best example of a ring galaxy : Hoag’s Object.
Here’s the wiki page for it with a lot more information : https://en.wikipedia.org/wiki/Hoag’s_Object
Gravitational lenses are usually arcs around a massive galaxy (usually in galaxy clusters) being bent by gravity.

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So cool
See Explanation.  Clicking on the picture will download  the highest resolution version available.