Thomann Planetary Tuning Fork Uranus

Thomann Planetary Tuning Fork Uranus, gold plated - suitable for allergy sufferers, extra long handle for better feel and control, Description: Duration of one orbital period around the sun; Position to sun: 7th planet, Orbital period in years: 84.07; Orbital period in days: 30685.93; Orbital period in seconds: 2651264352; Frequency calculation: 1/2651264352 sec. = 3.77179x10 pot. -10 Hz, (3.77179x10 pot. -10 Hz x 2) 2 pot. 38 = 207.36 Hz; Frequency: 207.36 Hz (= 39. Octave); Tone: G#3; Shifted 440 Hz standard-pitch: A4/a' = 439.38 Hz, Made in Germany ...