The Sun is a medium mass star in main sequence.
White dwarf stage. Its shrinks to a lot extent in this stage. Edit: A high mass star is usually one that becomes a supergiant then a supernova. Eventually this should leave either a neutron star or a black hole, depending on the mass of the star. The previous answer is for low mass stars.
It may be either. Juvenile means young.
Yes.
High, typically 10 to 70 times (or more) the mass of our own sun.
Sirius B is a white dwarf. So it is low mass compared to other stellar remnants.
White dwarf stage. Its shrinks to a lot extent in this stage. Edit: A high mass star is usually one that becomes a supergiant then a supernova. Eventually this should leave either a neutron star or a black hole, depending on the mass of the star. The previous answer is for low mass stars.
High mass.
High mass.
The sun is an intermediate-mass star.
Low mass
No, it's low mass.
white dwarf
It may be either. Juvenile means young.
There are more low mass stars. this is for two reasons:- # the star forming process generates more low mass stars # High mass stars burn out very quickly and explode as supernovas and thus over time there are less and less of them.
Yes.
A low mass star will become a white dwarf star, eventually this will cool to become a black dwarf. A high mass star (at least 8 times the mass of our Sun) will form a neutron star or a black hole, after a supernova event.
Formation of the star out of a giant cloud of gas and dust.