A black hole is the remnant of a massive star that died in a supernova explosion.
A red dwarf is nothing more than a very efficient energy user. It uses energy so slowly that a red dwarf created at the beginning of the Universe (13.7 billion years ago) is still around and will be for a few billion more years.
The oldest stars are now mostly either white dwarfs or neutron stars. A few of the largest may be black holes.
D. white dwarfs. Most stars in the Milky Way, including our Sun, will eventually end their lives as white dwarfs. This occurs after the star has exhausted its nuclear fuel and shed its outer layers.
There are two kinds of "dead" stars. One, called "brown dwarfs," even though they're actually dull red, are "dead" through not being able to fuse hydrogen into helium. They generate heat through their gravity, as Jupiter does. The other kind are the remnants of supernovae, which include white dwarfs, neutron stars and black holes. The first two of these aren't dead in the same sense as brown dwarfs, since they still radiate from fusion. Black holes and dead (except for gravity) because the matter at their hearts has become so compressed, it's been "pulled out of the universe" an occupies no space at all.
black dwarfs, cuz space is black too, so they would blend in with the night sky. red dwarfs would also be difficult to see, since they are very faint.
70-75% of stars are red dwarfs.
red giants.
There are several types of stars based on their size, temperature, and stage of life. Some common types include red giants, white dwarfs, neutron stars, and black holes. These stars differ in characteristics such as mass, brightness, and lifespan.
White Dwarfs, Supergiants, and Red Giants are stars that are found in the sky.
Red dwarfs are not bright because they are not very luminous, they don't emit a lot of light.
Red Giants and black holes
There are various types of stars, such as main sequence stars (like our sun), red giants, white dwarfs, neutron stars, and black holes. These stars differ in size, mass, temperature, and lifespan. They are classified based on their characteristics and the stage of their evolution.
The Sun is the name of the STAR we cling to. All STARS are infernos.