What elements are present in a star? How do they interact in order to form light and heat?
A star'score is the source of its energy created by nuclear fusion that generates light and heat.. The core elements are hydrogen and helium. Quite many other elements form only 2% of mass..
The core temperature of a star might be from
The nearest star is our star Sun and this is the only star seen as a disc. Sun's central temperature might be of the order