* Luminosity: The Sun has a much higher luminosity (total energy output) than white dwarfs. The Sun's luminosity is around 3.846 x 10^26 watts, while white dwarfs typically have luminosities ranging from 10^-4 to 10^4 times that of the Sun.
* Size: The Sun is much larger than a white dwarf. The Sun's radius is about 695,000 kilometers, while white dwarfs have radii typically around 10,000 kilometers, about the size of Earth.
* Temperature: While white dwarfs have extremely high surface temperatures (around 25,000 to 100,000 degrees Celsius), their smaller surface area and lower energy output mean they appear much less bright than the Sun.
Here's a simple analogy: Imagine a tiny, extremely hot ember compared to a large bonfire. The ember might be hotter, but the bonfire would be much brighter and more powerful overall.
In short: While white dwarfs are extremely hot, they are much smaller and have a lower energy output than the Sun, making them significantly less bright.
