Meinl Tuning Fork Sidereal Day
Planet Tuning Fork
- Note: G3
- Determination of frequency: Duration of an exact rotation of the earth around its own axis, measured from a fixed star position (~ 23h 56 min.), Position from the sun: 3rd planet
- Orbital period in days: 1
- Round trip time in seconds: 86164.09054
- Frequency calculation: 1 / 86164.09054 sec = 0.0000116 Hz, (0.0000116 Hz x 2) 2^23 = 194.71 Hz
- Frequency: 194.71 Hz (24th octave)
- Shifted standard tuning 440 Hz: A4 / a' = 437.11 Hz
- Made in Germany
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