Is a Galaxy Unresolved at 10 Arc Seconds with 15 Arc Second Resolution?

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SUMMARY

When observing a galaxy with a diameter of 10 arc seconds using a telescope with a diffraction-limited resolution of 15 arc seconds, the galaxy will appear as a fuzzy spot rather than completely unresolved. The blurriness prevents any discernible details from being visible, leading to a perception of the galaxy as a blurred object. This phenomenon highlights the importance of resolution in astronomical observations.

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Airsteve0
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This question may be quite trivial but I was wondering if you were observing a galaxy that was say 10 arc seconds in diameter with a telescope whose diffraction limited resolution was 15 arc seconds would the galaxy appear completely unresolved or just "blurry".
 
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That depends on what you mean by "unresolved". The light would appear, but it would be very blurry to the point that you wouldn't be able to see any detail, just a fuzzy spot.
 

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