420 lightyears equals 39,109,318,882,715,910,144 hands.
Convert 420 lightyears into meters, kilometers, decimeters, centimeters, milimeters, micrometers, nanometers, picometers, inches, feet, yards, miles, astronomical units, parsecs, etc...
Convert 3.9109318882716E+19 hands into meters, kilometers, decimeters, centimeters, milimeters, micrometers, nanometers, picometers, inches, feet, yards, miles, astronomical units, parsecs, etc...