4.8817369238517e+20 centimeters equals 516 lightyears.
Convert 4.8817369238517e+20 centimeters into meters, kilometers, decimeters, milimeters, micrometers, nanometers, picometers, inches, feet, yards, miles, hands, astronomical units, parsecs, etc...
Convert 517 lightyears into meters, kilometers, decimeters, milimeters, micrometers, nanometers, picometers, inches, feet, yards, miles, hands, astronomical units, parsecs, etc...