Compared with similar stars, does the sun itself have properties that make life on Earth possible? We often hear our solar system has properties for life. For example, it is far away from the center of Galaxy. It has Jupiter far away to protect us from asteroids. It has optimum size of territorial planets, plate activity on Earth, and so on.

But besides that, compared with similar stars, does our sun itself also have properties that make life possible? For example, does it have extra stable brightness? Or does it emit less high energy radiation?
One thing that is, if not unique, unusual about the Sun is the size of it.
It belongs to the top 5% brightest stars, meaning that 19 out of 20 stars are smaller than the Sun.



Having a Jupiter size planet is certainly not unique, and plate tectonics we know nothing about for exoplanets.