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 Be the first pioneers to continue the Astronomy Discussions at our new Astronomy meeting place...The Space and Astronomy Agora It Is Ridiculously Huge.. Forum List | Follow Ups | Post Message | Back to Thread Topics | In Response ToPosted by Bruce on August 26, 2001 02:00:23 UTC

M = [(2)3/2gshelldr1/2]-2

gshell=1x10-16m-1
in geometric units.

dr=1m

M ~ 1.25x1031meters [the mass of the Sun in meters is 1477m so this black hole is ~8.47x1027Solar mass]

so

r = 2M ~ 2.5x1031meters

The average velocity for the freely falling astronaut from r=2M to r=0 is 3/2 c (this is something you can find by integrating this distance with an integral which eliminates the infinity at r=0).

So it takes 5.555x1022seconds of wristwatch time for the astronaut to fall from r=2M to r=0.

This is ~ 1.76x1015Earth years

Boy was I off and as you can see this is a black hole that most likely doesn't exist in this universe.