- Planets series
- Description: Duration of one orbit around the Earth measured from a fixed star position
- The orbital period in days: 27.321661
- The orbital period in seconds: 2,360,591.51
- Calculation of frequency: 1/2,360,591.51 sec = 0.00000042 Hz (0.00000042 Hz x 2) 2 to the 28th power = 227.43 Hz
- Frequency: 227.43 Hz (octave = 29)
- Tone: A#3
- Shifted standard tuning 440 Hz: A4/a' = 429,33 Hz
- Made in Germany
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