Why don't white dwarfs make good distance indicators?

Answer 1

White dwarfs make poor distance indicators because they come in a relatively wide range of masses and inherent brightnesses with relatively poor luminosity.

Answer 2

White dwarfs don't make good distance indicators because they have a limited range of luminosities and can have different masses and compositions that affect their brightness. This makes it difficult to accurately determine their distances based on their apparent brightness alone. Other standard candles, like Cepheid variable stars or Type Ia supernovae, are more reliable distance indicators in astronomy.