stars are REALLY BRIGHT and as big as the sun. So. Basically you’re gust seeing the shine of a star not the star itself. That’s why you can’t see promixa from 4 light years away it isn’t bright enough
EVERYONE CAN? guess why. BECAUSE THE SUN IS 900 THOSANUD- TIMES THE SIZE OF EARTH. you can see it 1 AU away no matter what unless you’re. Blind I guess.