What is the smallest star in our world?
Are you wondering what is the smallest star in our sky? (I am betting this is indeed your question, since there is no star on the planet Earth, and no other than the Sun in our immediate neighborhood) If you want to know what is the smallest star in our Universe, then there is a whole family of them that might correspond to what you are looking for, called Dwarfs. Among those, the White Dwarfs are the smallest in size (about the size of the Earth); they are the cores of suns like our own that shed their outer layers. The closest of these is Sirius B, the companion of the brightest star of our sky, located 8.6 light years away, in constellation Canis Major. It is quite bright for its size. If your definition of star also includes things that do not shine on their own, then you might want to know about Neutron Stars. These come from the cataclysmic events that are the deaths of giant stars. When the core of one of these stars is compressed during such an explosion, called a Supernova, wh
