Why, when you look at stars with your naked eye, are they pointed instead of round like they should be?

come to think of it when you squint at any light it goes pointed, but WHY???Why, when you look at stars with your naked eye, are they pointed instead of round like they should be?
Stars appear to have points because of optical aberrations in your eye. Stars are point sources - too small for you to be able to see any actual shape. A perfect eye would show you a tiny diffraction disc that would get smaller as your pupil opened wider.





Squinting causes spiky diffraction effects by causing the light to pass through an irregular opening, rather than a round pupil.Why, when you look at stars with your naked eye, are they pointed instead of round like they should be?
They are way too far away for us to see any shape. Even with a telescope, only a few stars actually look round.





'; Because of the size and proximity of this star it has the third largest angular diameter as viewed from Earth,[17] smaller only than the Sun and R Doradus. Moreover, it is one of only a dozen or so stars telescopes have imaged as a visible disk.';
The stars are point-like simply because they are so far away our eyes are not sufficient to resolve their discs (neither are telescopes, as a matter of fact: I believe Betelgeuse is the only star whose disk has been resolved, so far, and it is one of the largest).
what do you mean ';round like they should be';?





with the exception of the sun, the stars are all far smaller than the resolution capability of our eyes. as far as our eyes are concerned, thy are mathematical points.