No. A white dwarf cannot exist above a mass of amount 1.4M sun. Above that limit a stellar remnant will become a much smaller and denser object called a white dwarf. A mass of 3.0 M sun is about the upper limit for a neutron star. Above that it is likely to collapse to forma black hole.
Yes, far smaller. A red dwarf is a whole star in and of itself. A white dwarf is the collapsed remnant of the core of a low-to medium mass star. A white dwarf may be about the size of Earth.
As a white dwarf loses energy and cools down, it eventually transitions into a black dwarf. A black dwarf is a hypothetical stellar remnant that has cooled to the point where it no longer emits heat or light. It is smaller and denser than a white dwarf.
A black dwarf would be smaller than some planets but larger than others. A black dwarf is simply a cooled white dwarf. White dwarfs range from slightly smaller than Earth to about twice Earth's diameter.
Yes. The white dwarf would be a bit bigger than the Earth.
A white dwarf could be smaller or bigger than the moon since it's size varies depending on the mass of the white dwarf. Since the mass of the moon is 7.347 x 1022 kg and the mass of Pluto is 1.31×1022 kg the size of a white dwarf is also smaller or bigger than Pluto depending on it's mass.
A huge amount. As a rough comparison: Main sequence size a beach ball, white dwarf size a marble. The white dwarf, though is millions of times denser than it's main sequence parent.
Why not, white winter hamsters are the same size possibly smaller than a dwarf hamster.
Several times smaller than our Sun. Details vary, depending on the type of dwarf star (a red dwarf and a white dwarf are quite different things), and the exact mass.
Pluto is the dwarf planet that is smaller than the Earth's moon.
A white dwarf is much denser than the Sun. White dwarfs have a typical density around 1 million times greater than the density of the Sun, resulting in a mass similar to the Sun's but packed into a much smaller volume.
A white dwarf is denser than a planet. White dwarfs are stellar remnants that have collapsed under gravity, packing a large amount of mass into a small volume. Planets, on the other hand, have much lower densities compared to white dwarfs due to their composition and structure.
The obvious reason is that the specific star has bigger density compared with the Sun. For example, that star could be a "white dwarf star". A white dwarf mostly contains "electron degenerate matter", which is very dense. A white dwarf is a small dense star.