Thomann Planetary Tuning Fork Mars

Thomann Planetary Tuning Fork Mars, Tuning Fork Mars, Gold-plated - suitable for allergy sufferers, Extra-long handle for better feel and control, Made in Germany@+*Description:*, Duration of one orbit around the sun, Position of the sun: 4th planet, Orbital period in years: 1.88, Orbital period in days: 686,9798, Orbital period in seconds: 59355055, Frequency calculation: 1/59355055 sec = 1.68478x10 to the power of -8 Hz (1.68478x10 to the power of -8 Hz x 2) 2 to the power of 32 = 144.72 Hz, Frequency 144.72 Hz (= 33 octave), Note: D#3, Shifted standard tuning 440 Hz: A4/A' = 433.67 Hz ...