fALCONIUS: a white dwarf is basically a dying star, it does not burn or fuse anything. It's just like the center of the Earth, it does not produce any energy, it's just cooling off.

The particles I was referring are several billion years old and should have dissipated but it's possible that some parts have agglutinated to form some magnetic clouds or something like that. Yes they could obscure the vision but they are located at specific places.

I'm trying to find how bright would be a star at around 75 AU. It seems the apparent magnitude of the Sun is around -17 :Apparent magnitude - Wikipedia, the free encyclopedia (It's brighter than a full moon)
but that's for the Sun and my idea was to have a much smaller star around. A good example of a white dwarf would be Sirius B, the twin of Sirius A, one of the brightest star in the sky. Sirius - Wikipedia, the free encyclopedia
I have no idea how to calculate the apparent magnitude of our star.


some illustrative comparisons
File:Comparison sun seen from planets.svg - Wikipedia, the free encyclopedia
File:Artist?s impression of the surface of the dwarf planet Makemake.jpg - Wikipedia, the free encyclopedia