In order of smallest mass.
A neutron star is smaller, but has a greater mass. A typical white dwarf is about the size of a terrestrial planet. A typical neutron star is a few miles across.
Pluto is the dwarf planet that is smaller than the Earth's moon.
Yes
A brown dwarf is a celestial object that has a size that is between a star and a giant planet.
No. Jupiter is a gas planet. It is not massive enough to be considered a brown dwarf.
A White Dwarf because the inside of a planet is denser than the outer layers of the planet combined. So the White Dwarf is smaller.
None. Ceres is the smallest object currently classified as a dwarf planet.
Pluto is smaller than all eight planets, even Mercury. It's the second largest confirmed dwarf planet (out of the five dwarf planets). The largest being Eris.
Eris is not a planet; it is a dwarf planet. It is much smaller than Earth.
No known planet is smaller than Mercury since Pluto was reclassified as a Dwarf Planet.
No known planet is smaller than Mercury since Pluto was reclassified as a Dwarf Planet.
Eris is not a planet; it is a dwarf planet. It is much smaller than Earth.