- #1

Ryan_m_b

Staff Emeritus

Science Advisor

- 5,844

- 711

## Main Question or Discussion Point

If a black hole was placed at the centre of an object (like a planet) how long will it takes for the mass of that planet to be consumed?

I’ve tried having a look around the internet for an answer for this (kind of silly) question but can’t find one. I thought maybe of working out the flow of mass in based on the size but drew a blank on how to figure out the rate of in falling matter. Any help would be appreciated :)

Obviously some mass will end up as an accretion disk but really I’m looking for if there is a touchy way of working out the time frame.

I’ve tried having a look around the internet for an answer for this (kind of silly) question but can’t find one. I thought maybe of working out the flow of mass in based on the size but drew a blank on how to figure out the rate of in falling matter. Any help would be appreciated :)

Obviously some mass will end up as an accretion disk but really I’m looking for if there is a touchy way of working out the time frame.