My apologies for being unclear.
What I meant was the time measured by an observer in an ideal position where space is undistorted by gravity - to avoid any time distortions on the observer's cloc; and who can ideally measure the time, instantaneously, that it takes the mass to travel from 10xRs...
Gratings
The following is an example of a question that I have been battling to get my mind around for some time:
How long, in gravity-free time (Tᴓ-time), would it take for a stationary, one kilogram, point-mass to fall directly towards a non-spinning, accretion-disk-free, singularity in a...