What planet is closest in mass to a white dwarf?

Answer 1

A white dwarf who's progenitor star was about the same mass as our Sun will leave behind a stellar remnant around the size of our Earth.

Obviously if the progenitor star was larger or smaller, then the stellar remnant will also be larger or smaller.

Answer 2

A white dwarf has far more mass than any planet. Jupiter is the most massive planet in the solar system and so would be the "closest" in mass to a white dwarf, but it is still hundreds of times lass massive.

Answer 3

Difficult to know for sure. Brown dwarf stars are small and dim, and it's possible that there is one relatively close by that we've never noticed.

The nearest known brown dwarf star is Epsilon Indi Bb, one of two brown dwarf stars orbiting the star Epsilon Indi. It would not be detectable at all if it were not so close to the parent star, and it is possible that there are other solitary brown dwarf stars that are closer. Epsilon Indi is about 12 light-years away.

In fact, there have been suggestions that a brown dwarf star tentatively named "Nemesis" may be distantly orbiting the Sun, occasionally coming close enough to perturb clusters of comets from the Oort Cloud and dropping them into the inner solar system. Nothing like this has been discovered, however, and the idea has been generally discredited.

Answer 4

white dwarf's are stars not just one white dwarfs are a completion of a star so it can be close or far

Answer 5

I'm pretty sure it is Sirius A. It is 8.6 light years (50,556,179,654,736 miles) away. It is also a binary system. It's sister star is Sirius B and it is a white dwarf.

Answer 6

If I am correct it is called sirius b

Answer 7

Aldebaran is a red giant star 65 light years away.