A star
A star is a luminary that emits light and heat due to nuclear reactions occurring in its depths. Stars can be of different sizes and brightness, their properties depend on the mass, composition and age. Stars are the main objects of astronomy study and play an important role in the formation and development of the universe.
A star
A star is a luminary that emits light and heat due to nuclear reactions occurring in its depths. Stars can be of different sizes and brightness, their properties depend on the mass, composition and age. Stars are the main objects of astronomy study and play an important role in the formation and development of the universe.
