10 pts to the furthest distance with a plausible explanation! ? contact lenses... Long-sighted contest: How far can you see?

10 pts to the furthest distance with a plausible explanation!

? contact lenses and eye glasses are OK
? binoculars and telescopes are verboten
Answers:   On a holiday in South Africa, at a remote campsite with completely dark sky, I managed to identify the Southern Pinwheel Galaxy (aka Messier 83 and NGC 5236) on the border of Hydra and Centaurus. So I have seen 14.7 million light years (or 4.5 megaparsecs).

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