The Eskimo Nebula is a planetary nebula (an area of gas surrounding, and orbiting around, a central star) that looks vaguely like a face with a furry parka hood. See the links for photos and more details.
Neither; it is a star. it formed from a nebula.
Yes, a nebula is far larger than a neutron star. A neutron star is a few miles across. A nebula is light years across.
A star forms a nebula when it runs out of fuel. The star either becomes a red giant or a supergiant, then the star would be blown off into space either by expansion or explosion. The outer layers, which was released into space, would become a nebula, or sometimes a part of a larger nebula.
The Sun is a star.
Planetary Nebula
The helix nebula is more close than the ring nebula, as well as much brighter and larger than the ring but with low surface brightness.
a nebula is cloud of particles which forms into a star.
A nebula may condense and ignite to become a star, conversely a star may explode and form a nebula.
A White Dwarf Star remains.
A Nebula is a gas of dust and minerals that surrounds a star. Also, a nebula is a birthplace of a star, where a star and sometimes a solar system is formed after a huge explosions
The Eskimo Nebula is a planetary nebula (an area of gas surrounding, and orbiting around, a central star) that looks vaguely like a face with a furry parka hood. See the links for photos and more details.
The Ring Nebula is classified as a planetary nebula which is a shell of gas and plasma, formed when certain stars die.So, in a way they are clouds of matter in space.
Because the bug nebula's (NGC 6302) central star, a white dwarf, is only about two thirds solar mass, it is unlikely to become a black hole. It would need to be about five times its current mass to overcome degeneracy pressure.
A star like our sun will shed a planetary nebula after its 'death'
No, a neutron star can't become a nebula. A neutron star is not made of atomic matter, has less mass than a nebula, and has no mechanism by which to expand.
No, Arcturus is a red giant star, not a nebula.