contracting mass of gas which represents an early stage in the formation of a star, before nucleosynthesis has begun

stars that are fusing hydrogen atoms to form helium atoms in their cores.

When the core of a Red Supergiant collapses, a bright event occurs, known as:

After a supernova, the core can collapse into a neutron star, or if massive enough it can become a:

One possible outcome that is left after a supernova is a super dense core called a:

Main sequence stars are made primarily of which elements?

Which star is hotter than Deneb

Which star is brighter than the sun?

Which star is considered a giant star?

Which star is considered a main sequence star?