keep your distance. An unknown graphic artist had rendered the diameter of a saturn-mass black hole’e event horizon. Victor has graciously provided the essential metrics for your calculation and perusal.
Here are the relevant numbers:
Formula for the Schwartzschild radius of a black hole: R=2MG/c^2 (discounting charge and spin)
Gravitational constant (G): 6.67 X 10^-11 m^3/kg.s^2
Mass of Saturn: 5.68 X 10^26 kg
Have fun. My ZWO camera, which my wife ordered as a Christmas/Birthday gift for me, is finally due to arrive tomorrow! I figure that means dreary weather for the next month at least.
Your optimistic astro-buddy,
Victor
Amateur Astronomers Association of Princeton 
