Frequency Atlas

Saturn Orbit (Cosmic Octave)

147.85 Hz

Nearest note: D3, 12 cents above standard tuning

A tone calculated from a measured cycle, by doubling its frequency 37 times. It is calculated, not recorded.

How well is this supported?

DerivedOctave of an astronomical cycle

Calculated from a measured value by a stated method. You can check the arithmetic. What the result means is a matter of interpretation.

The cycle is measured. The tone is calculated from it by doubling, so that it can be heard. Nothing in space makes this sound.

What the four labels meanChecked against sources September 27, 2026

The button plays a plain tone. Start with the volume low. Phone and laptop speakers play low notes quietly; headphones or a speaker help.

Where this number comes from

Saturn goes around the Sun in about 29.46 years. Cousto’s table uses 10,759.22 days. 1 ÷ 929,596,608 seconds, doubled 37 times, is 147.85 Hz. That is a D, about 12 cents above standard tuning.

  1. Step 1. Start with the length of the cycle

    Saturn orbit around the Sun: 10,759.22 days.

  2. Step 2. Turn it into a frequency

    One divided by that many seconds is 1.08 × 10⁻⁹ Hz. That is far too slow to hear.

  3. Step 3. Double it 37 times

    Doubling a frequency raises it by one octave: the same note, higher. After 37 doublings it is 147.85 Hz.

  4. Step 4. Name the note

    147.85 Hz is a D, 12 cents above standard tuning. A cent is one hundredth of the step between two neighboring piano keys. To play in tune with this tone, an instrument sets its A to 443.04 Hz instead of 440.

  5. Step 5. Keep doubling and the number lands in the range of light

    42 more doublings give the frequency of light with a wavelength of 461 nm, which is blue. This is arithmetic. It pairs a tone with a color; it does not show that the two are connected.

The method is Hans Cousto’s. Planet gongs explained walks through it and says what it does and does not show.

What is said about it

What is said, not what was measured

In astrological tradition Saturn is associated with structure, limits and time.

Facts

Frequency
147.85 Hz
One cycle takes
29.46 years
Wavelength in air (20 °C)
2.32 m
Nearest note
D3, 12 cents above standard tuning
Kind of statement
Octave of an astronomical cycle
Filed under
Planets

Tuning Data

The row for this tone in Hans Cousto’s tables, with the tempo and pendulum length that follow from it.

Cycle
Saturn orbit around the Sun
Length of the cycle
10,759.22 days
Octaves up
37
Concert pitch (A)
443.04 Hz
Difference from A = 440 Hz
+11.93 cents
Tempo
69.30 beats per minute
Pendulum length
18.6 cm / 7.33 in
Color by octave
Blue (461 nm)
Tempo and pendulum length, octave by octave
OctaveFrequencyOne cycleTempoPendulum
30tempo1.16 Hz865.74 ms69.30 BPM18.6 cm
312.31 Hz432.87 ms138.61 BPM4.7 cm
324.62 Hz216.44 ms277.22 BPM1.2 cm
339.24 Hz108.22 msToo fast to countToo short to build
3418.48 Hz54.11 msToo fast to countToo short to build
3536.96 Hz27.05 msToo fast to countToo short to build
3673.93 Hz13.53 msToo fast to countToo short to build
37tone147.85 Hz6.76 msToo fast to countToo short to build
Intervals built on this tone
RatioIntervalFrequencyNoteConcert ACents from 440
1/1Perfect unison147.85 HzD3443.05 Hz+11.96
81/80Syntonic comma149.70 HzD3448.59 Hz+33.46
531441/524288Pythagorean comma149.87 HzD3449.09 Hz+35.42
128/125Diesis151.40 HzD#3428.22 Hz-46.98
648/625Greater diesis153.29 HzD#3433.57 Hz-25.48
25/24Chroma154.01 HzD#3435.61 Hz-17.37
16/15Diatonic semitone157.71 HzD#3446.06 Hz+23.69
10/9Minor whole tone164.28 HzE3438.57 Hz-5.64
9/8Major whole tone166.33 HzE3444.05 Hz+15.87
8/7Septimal whole tone168.97 HzE3451.10 Hz+43.13
6/5Minor third177.42 HzF3447.07 Hz+27.60
5/4Major third184.81 HzF#3439.56 Hz-1.73
4/3Perfect fourth197.13 HzG3442.55 Hz+10
3/2Perfect fifth221.77 HzA3443.55 Hz+13.91
8/5Minor sixth236.56 HzA#3446.57 Hz+25.64
5/3Major sixth246.42 HzB3439.06 Hz-3.68
7/4Natural seventh258.74 HzC4435.14 Hz-19.22
16/9Pythagorean minor seventh262.84 HzC4442.05 Hz+8.05
9/5Just minor seventh266.13 HzC4447.58 Hz+29.55
15/8Major seventh277.22 HzC#4440.06 Hz+0.23
2/1Octave295.70 HzD4443.05 Hz+11.96

Source notes

Cousto’s table uses 10,759.22 days. NASA currently lists Saturn’s period as 10,755.70 days. The difference moves the tone by about half a cent.

Source: Hans Cousto — Tuning Data / Sun Earth Moon Planets. View the source PDF, page 33.

License: CC BY-NC-ND 4.0, as stated in Stimmdaten.pdf (German edition), page 2.

Values are reproduced from Cousto’s tables. Tempo, pendulum length and interval tables are calculated by this site from those values.

See every tone in the tables: Open the tuning data reference.

Sources

More about the pitch

The same note in every octave

Each step doubles or halves the frequency. Tap one to hear it.

Entries close in pitch

Within 35 cents of this tone, in any octave. A cent is one hundredth of the step between two neighboring piano keys. Being close in pitch does not mean two things are connected.

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