Jupiter tuning fork — 183.58 Hz

183.58 Hz is the tone of Jupiter, which circles the Sun in 11.86 years. Jupiter in astrology stands for growth and expansion, and the same theme carried over to the fork: the pair of Om and Jupiter is called the “chord of abundance”.

Jupiter with the Great Red Spot · NASA/JPL, public domain

Frequency (middle octave)	183.58 Hz
Note	F# · −13 cents from standard tuning A = 440 Hz
Tuning in which this is an exact note	A = 436.62 Hz
Cycle	orbit around the Sun11.86 years
Doublings from the cycle's frequency	36
Color (the same frequency as light)	red · 743 nm
Paint on the Acutonics tuning fork	dark blueshade measured from photos in the school's catalog — this is NOT the computed colorcolor name “Ultra Marine Blue” — school pagecolor name “Cobalt Blue” — Acutonics Canada
What can be checked	Reproducible

This frequency has a neat coincidence that makes it a favorite for work with beats: Jupiter plus 10.6 Hz is exactly the tone of the solar day, the Earth Day fork at 194.18 Hz. So the “Jupiter + Earth Day” pair is both meaningful in tradition and gives a clean alpha pulsation without adjusting a single frequency.

An octave lower, the same pair gives 5.3 Hz, which is already theta. The same meaning at a different depth: this is the method's main practical technique.

How this number is obtained

The axis is logarithmic: each doubling raises the sound by exactly one octave. The pitch goes up, the note stays the same.

Given: the period of Jupiter

11.86 years = 374 336 251 seconds

1The frequency of the cycle itself: how many times it repeats per second

1 ÷ 374 336 251 = 0.000 000 002 671 4the same in short form: 2.67 × 10⁻⁹ Hz

A tiny number that cannot be heard: human hearing starts at about 20 Hz. But it is a real frequency, and we can keep working with it.

2Raising it into the audible range: each doubling is one octave up

0.000 000 002 671 4 × 2 = 0.000 000 005 342 81st doubling

0.000 000 005 342 8 × 2 = 0.000 000 010 6862nd doubling

0.000 000 010 686 × 2 = 0.000 000 021 3713rd doubling

⋮32 more doublings just like these

91.79 × 2 = 183.5836th doubling: now it is in the middle fork band

Or, in a single line:

0.000 000 002 671 4 × 2³⁶ = 183.58 Hz

where 2³⁶ = 68 719 476 736, the number of times the frequency has grown

The value Cousto published is 183.58 Hz. It matches.

3Which note it is

12 × log₂(183.58 ÷ 440) = −15.13semitones from A

nearest whole number: −15 = F#and that is the note

remainder: −0.13 of a semitone = −13 centshow far the tone is from the note

One hundred cents make one semitone. Planetary frequencies almost never land exactly on a note: orbits know nothing about musical tuning.

4In which tuning it would be an exact note

183.58 ÷ 2^(−15 ÷ 12) = 436.62 Hz

An ordinary piano is tuned to A = 440 Hz. Here the tone gets a tuning of its own, and for the Om tone it is exactly the much-discussed 432 Hz.

5Color: the same frequency raised all the way to light

183.58 × 2⁴¹ = 403 689 802 864 139 Hzthat is 4.04 × 10¹⁴ Hz, already visible light

299 792 458 ÷ 403 689 802 864 139 = 743 nmwavelength → red

Divide the speed of light by the frequency and you get the wavelength. This is a model, not the measured color of a planet, but the arithmetic is exactly the same as for sound.

Octave ladder

Octave	Frequency	How it is used
2^33	22.95 Hz	below or at the edge of hearing
2^34	45.89 Hz	below or at the edge of hearing
2^35	91.79 Hz	low: stronger vibration on the body
2^36	183.58 Hz	the main tuning fork
2^37	367.15 Hz	high: work in the field above the body
2^38	734.31 Hz	high: work in the field above the body

What tradition ascribes

Tradition

Growth, expansion, abundance.

This is a system of correspondences, not the result of a measurement: controlled studies of planetary frequencies do not exist. We present the tradition because it exists and the practice is built on it — but we call it tradition.

Intervals with this tone

Interval	Pair	Ratio	Difference
Om / Jupiter 4	Om + Jupiter	1.349	47.48 Hz

All frequencies in one chart · how the calculation works · what has been proven