Are the black holes on the sun a hotter or cooler temperature?

I am assuming you mean these “Black Holes”. They are called Sunspot, for obvious reasons. So, what is a Sunspot, you say. read more

There are no black holes on the Sun. The dark spots you are referring to are called as Sunspots. Sunspots appear to be dark because they are at a cooler temperature (~4,000 °C) than their surroundings (5,500 °C). read more

We can calculate the black hole temperature for the mass within the solar orbit around the Milky Way center and the black hole temperature for the Sun as follows: [(1.29 x 10^26 m - distance light traveled for age of universe) x (2.725k)^2 /(2.65 10^14 m - black hole radius for mass within solar orbit)] square root = 1.9 x 10^6 kelvin - black hole temperature for mass within solar orbit around Milky Way center. read more

Coronal holes are lower density and temperature regions of the sun’s outer atmosphere, known as the corona,' explained Nasa. 'Coronal holes can be a source of fast solar wind of solar particles that envelop the Earth.' The magnetic field in these regions extends far out into space rather than quickly looping back into the sun’s surface. read more