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Brainstorm: Mercury / Pluto Astrology Aspects

Written in short, fragmented sentences, this post embraces a stream-of-consciousness style of writing to explore Mercury and Pluto in aspect in astrology. This article is included in the Planetary Combinations astrology eBook.
M

ystery writers. Sleuths. Whodunnit? Crime writers. Tunnel vision. Fixation. Poison Pen. Getting stuck on a particular idea or concept. Obsessive thoughts. Secretive. Probing. Investigators. Researchers. Detectives. Paranoid. Deeply suspicious mind. Conspiracy theorists. Attempting to uncover plots where none may exist. Psychopath. Deranged. Powerful words and language – for better or worse. The power of persuasion. Withholding information to gain power. Using information to gain power over others. Keeping silent. Concealing your thoughts. The need for privacy in communication. Secret languages. Coded languages. Occult knowledge. The ferret. Healing words. Catharsis through language. Getting to the bottom of things. Speaking in absolutes. Deft. Subtle. Penetrating. Relentless.

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If you place your head in a lion’s mouth, then you cannot complain one day if he happens to bite it off.

– Agatha Christie, Mercury trine Pluto in Air (Source)

Deeply healing conversations. The ability to cut to the core of an issue. Psychotherapists. Cutting through the crap. A willingness to broach taboo subjects. A willingness to bring unpopular topics out for discussion. A willingness to take a look at the problems that society would rather sweep under the rug. The need to purge dark thoughts through writing or conversation. Writing about the underworld. Looking to get to the root of problems. Looking to solve a mystery from the bottom up. Needing a mystery to unravel. Finding ways to rebirth the mind. Take an idea and transforming it – for better or worse. The ability to fully, fundamentally, and totally, change your mind.

Disturbing sibling relationships. Undercurrent of control in sibling relationships. Power struggles with siblings. Having a nosy sibling. Your brother is a criminal. Your sister has a dark streak. Your twin died in the womb. Having a dead twin.

Mercury / Pluto aspects

1st Harmonic (The Fusion Point — Identity Meets Identity): The merging of two emotional systems; a catalytic blending of instincts, wounds, and memory.

The aspect: 1st harmonic, 1/1. This aspect comes from taking the 360 degrees of a circle and dividing by 1, then multiply by 1.

Like this, 360 / 1 = 360 x 1 = 360

Basic influence: Intensity and emphasis; focus/focal point; impact. Lack of awareness. Concentration of energy. Fusion. The coming together of unrelated energy. When there are no oppositions, there is a lack of balance in the chart. Skewed viewpoint. Lop-sided emphasis. One-sidedness.

20th Harmonic (The Fine Thread — Micro‑Adjustments & Subtle Emotional Weaving): The 20th harmonic operates like a tiny tuning fork inside the emotional system — subtle, precise, and easily overlooked unless you’re listening closely. It reveals the micro‑shifts, delicate recalibrations, and almost imperceptible emotional adjustments that help integrate larger wounds or patterns. This is the harmonic of emotional finesse, where healing happens through nuance, sensitivity, and the smallest possible shift in awareness.

The aspect: 1/20 harmonic. This aspect comes from dividing the 360 degrees of a circle by 20, then multiply by 1.

Like this, 360 / 20 = 18 x 1 = 18

12th Harmonic (The Subtle Shift — Background Awareness & Quiet Integration): Minor adjustments, soft awakenings, and the slow accumulation of insight; emotional growth through small, consistent shifts.

The aspect: 1/12 harmonic. Take the 360 degrees of a circle, and divide by 12, then multiply by 1.

Like this, 360 / 12 = 30 x 1 = 30

Basic influence: The natural next step: the next thing that needs to be done; how one thing naturally leads to another; what you should be preparing for next; where things are heading, whether you want them to go there or not. What all your hard work and preparation are for. The next big thing. Natural direction.

What you might be blind to. Something just over your shoulder, out of sight, and beyond the periphery of your vision. A blind spot. The thing that came immediately before and is already nearly forgotten. Efforts at memory. Reclaiming. People who don’t have your best interests at heart. Better work on some yoga moves to look over your shoulder, and behind your back.

10th Harmonic (The Subtle Craft — Precision, Calibration & Emotional Technique): Fine‑tuned emotional adjustments, micro‑skills, and delicate recalibrations; healing through nuance, timing, and the smallest possible shift in awareness.

The aspect: 1/10 harmonic. This aspect comes from dividing the 360 degrees of a circle by 10, then multiply by 1.

Like this, 360 / 10 = 36 x 1 = 36

9th Harmonic (The Inner Temple — Initiation & Spiritual Maturation): Quiet realizations, vows, and inner turning points; emotional refinement through contemplation and subtle insight.

The aspect: 1/9 harmonic. This aspect comes from dividing the 360 degrees of a circle by 9, then multiply by 1.

Like this, 360 / 9 = 40 x 1 = 40

8th Harmonic (The Friction Engine — Irritation That Reveals the Wound): Small pressures and emotional snags that expose deeper patterns; growth through tension and discomfort.

The aspect: 1/8 harmonic. Take the 360 degrees of a circle and divide by 8, then multiply by 1.

Like this, 360 / 8 = 45 x 1 = 45

or, take a square, and split it in half

Like this, 360 / 4 = 90 / 2 = 45

8th Harmonic (The Friction Engine — Irritation That Reveals the Wound): Small pressures and emotional snags that expose deeper patterns; growth through tension and discomfort.

The aspect: 1/8 harmonic. This aspect comes from dividing the 360 degrees of a circle by 8, then multiply by 1.

Like this, 360 / 8 = 45° x 1 = 45°.

This aspect is the same as the semi-square.

7th Harmonic (The Fate Line — Karmic Crossings & Mystical Intuition): The realm of destiny threads, psychic openings, and emotional encounters that feel pre‑written.

The aspect: 1/7 harmonic. This aspect comes from dividing the 360 degrees of a circle by 7, then multiply by 1.

Like this, 360 / 7 = 51.42857142857143 x 1 = 51.42857142857143

Convert to time = 51°26′

6th Harmonic (The Opportunity Gate — Cooperative Openings): Moments of choice, collaboration, and emotional learning; healing that requires participation.

The aspect: 1/6 harmonic. Take the 360 degrees of a circle and divide by 6, then multiply by 1.

Like this, 360 / 6 = 60 x 1 = 60

or take a trine, and split it in half

Like this, 360 / 3 = 120 / 2 = 60

Basic influence: Opportunities for positive change; awareness of a time to take positive advantage; opportunities that pass unnoticed without conscious effort. No, there may not be another chance. Learning to be quicker to act on good luck. Learning not to let good things pass you by. Learning that positive experiences require effort too. Positive doesn’t mean passive.

10th Harmonic (The Subtle Craft — Precision, Calibration & Emotional Technique): Fine‑tuned emotional adjustments, micro‑skills, and delicate recalibrations; healing through nuance, timing, and the smallest possible shift in awareness.

The aspect: 2/10 harmonic. This aspect comes from dividing the 360 degrees of a circle by 10, then multiply by 2.

Like this, 360 / 10 = 36 x 2 = 72

This aspect is the same as a quintile.

See also: Quintiles « Alice Portman, Astrologer

5th Harmonic (The Creative Circuit — Inspired Healing): Innovative emotional problem‑solving; healing through artistry, symbolism, and imaginative reframing.

The aspect: 1/5 harmonic. This aspect comes from dividing the 360 degrees of a circle by 5, then multiply by 1.

Like this, 360 / 5 = 72 x 1 = 72

Basic influence: Creativity, talents, quirks, special skills.

See also: Quintiles « Alice Portman, Astrologer

9th Harmonic (The Inner Temple — Initiation & Spiritual Maturation): Quiet realizations, vows, and inner turning points; emotional refinement through contemplation and subtle insight.

The aspect: 2/9 harmonic. This aspect comes from dividing the 360 degrees of a circle by 9, then multiply by 2.

Like this, 360 / 9 = 40 x 2 = 80

4th Harmonic (The Tension Forge — Pressure That Shapes You): Emotional friction that demands growth; the wound becomes visible through conflict or internal strain.

The aspect: 1/4 harmonic This aspect comes from dividing the 360 degrees of a circle by 4, then multiply by 1.

Like this, 360 / 4 = 90 x 1 = 90

Basic influence: Dynamic creative tension; inner stress and tension that build until you are forced to find creative solutions. Opportunities to push your limits to greater achievement; inner restlessness and lack of satisfaction that impel you to make changes and push yourself; you are challenged to combine these energies; applying energy to solve a problem; creative problem-solving. Something needs to give.

7th Harmonic (The Fate Line — Karmic Crossings & Mystical Intuition): The realm of destiny threads, psychic openings, and emotional encounters that feel pre‑written.

The aspect: 2/7 harmonic. This aspect comes from dividing the 360 degrees of a circle by 7, then multiply by 2.

Like this, 360 / 7 = 51.42857142857143 x 2 = 102.8571428571429

Convert to time = 102° 51’26”

10th Harmonic (The Subtle Craft — Precision, Calibration & Emotional Technique): Fine‑tuned emotional adjustments, micro‑skills, and delicate recalibrations; healing through nuance, timing, and the smallest possible shift in awareness.

The aspect: 3/10 harmonic. This aspect comes from dividing the 360 degrees of a circle by 10, then multiply by 3.

Like this, 360 / 10 = 36 x 3 = 108

9th Harmonic (The Inner Temple — Initiation & Spiritual Maturation): Quiet realizations, vows, and inner turning points; emotional refinement through contemplation and subtle insight.

The aspect: 3/9 harmonic. This aspect comes from dividing the 360 degrees of a circle by 9, then multiply by 3.

Like this, 360 / 9 = 40 x 3 = 120

Same as the trine.

3rd Harmonic (The Flow Line — Natural Resonance): Ease, intuition, and emotional coherence; healing that moves like water, without resistance.

The aspect: 1/3 harmonic. This aspect comes from dividing the 360 degrees of a circle by 3, then multiply by 1.

Like this, 360 / 3 = 120 x 1 = 120

Basic influence: Flow. Ease. Status quo. Circumstances and characteristics that are not changing. Things that are stable; maintaining peace and tranquility; idleness; good times; use these gifts to your advantage. Negatively, unimpeded flow. Events that cannot be stopped. Unstoppable, sweeping movement like a flood. Lack of self-discipline. Laziness and self-indulgence. Times that are easy, lacking challenge and opportunities for growth. Taking situations for granted. Keeping everything like it is. If it ain’t broke, don’t fix it.

8th Harmonic (The Friction Engine — Irritation That Reveals the Wound): Small pressures and emotional snags that expose deeper patterns; growth through tension and discomfort.

The aspect: 5/8 harmonic. Take the 360 degrees of a circle and divide by 8, then multiply by 5.

Like this, 360 / 8 = 45 x 5 = 135

Basic influence: Blockages. Physical manifestation of problems and accidents. Inner psychological blockages that manifest as outer events. Possibly obfuscation, meaning a period of time, something that happens, or mental confusion or anguish that prevent you from seeing a clear path forward. Crisis, deadlock, stalemate, impasse, standoff, standstill, dead end.

See also: Thor’s Hammer « Alice Portman, Astrologer

5th Harmonic (The Creative Circuit — Inspired Healing): Innovative emotional problem‑solving; healing through artistry, symbolism, and imaginative reframing.

The aspect: 2/5 harmonic. This aspect comes from dividing the 360 degrees of a circle by 5, then multiply by 2.

Like this, 360 / 5 = 72 x 2 = 144

See also: Quintiles « Alice Portman, Astrologer

12th Harmonic (The Subtle Shift — Background Awareness & Quiet Integration): Minor adjustments, soft awakenings, and the slow accumulation of insight; emotional growth through small, consistent shifts.

The aspect: 5/12 harmonic. Take the 360 degrees of a circle and divide by 12, then multiply by 5.

Like this, 360 / 12 = 30 x 5 = 150

Basic influence: Adjusting expectations; tempering over-enthusiasm and over-reaching; keeping yourself in check; adjusting to meet changing circumstances; doing what you need to do to make things work. Adjusting your attitude. Adjusting your perspective. Doing the best you can in an uncomfortable situation. Developing flexibility and adaptability. Flexing your strenght, flexing your power, flexing what you've got. Flex, until you almost break. A seesaw, with too much weight on one side, and not enough on the other side. Awkward situations and relationships.

See also: Quincunx, YOD, Pythagorean Triangle « Alice Portman, Astrologer

12th Harmonic (The Subtle Shift — Background Awareness & Quiet Integration): Minor adjustments, soft awakenings, and the slow accumulation of insight; emotional growth through small, consistent shifts.

The aspect: 12th harmonic. Quincuxes are 5/12 and semi-sextiles are 1/12.

The term "inconjunct" is often conflated with the word "quincunx" in astrology.

All quincunxes are inconjuncts but not all inconjuncts are quincunxes.

Some inconjuncts are semi-sextiles.

Excerpt from the book Horoscope Symbols by Robert Hand

7th Harmonic (The Fate Line — Karmic Crossings & Mystical Intuition): The realm of destiny threads, psychic openings, and emotional encounters that feel pre‑written.

The aspect: 3/7 harmonic This aspect comes from dividing the 360 degrees of a circle by 7, then multiply by 3.

Like this, 360 / 7 = 51.42857142857143 x 3 = 154.2857142857143

Convert to hours, minutes and seconds = 154° 17’ 08”

9th Harmonic (The Inner Temple — Initiation & Spiritual Maturation): Quiet realizations, vows, and inner turning points; emotional refinement through contemplation and subtle insight.

The aspect: 4/9 harmonic. This aspect comes from dividing the 360 degrees of a circle by 9, then multiply by 4.

Like this, 360 / 9 = 40 x 4 = 160

24th Harmonic (The Quiet Lattice — Subtle Integration & Background Alignment): Soft emotional adjustments, barely perceptible shifts, and gentle internal organizing; healing through small, consistent acts of awareness that gradually bring the emotional system into coherence.

The aspect: 11/24 harmonic. This aspect comes from dividing the 360 degrees of a circle into 15-degree equal segments.

Like this, 360 / 24 = 15

then multiply by 11

Like this, 360 / 24 = 15 x 11 = 165

This aspect does not make sense to me at the moment, but here’s the link.

I would think a quin-decile would take the 360 degrees of a circle, divide by 10, then multiply by 5.

Like this, 360 / 10 = 36 x 5 = 180

This creates an aspect that is exactly the same as an opposition.

5/10 harmonic, which reduces to 1/2 harmonic.

360 / 2 = 180 x 1 = 180

See also: Quindecile – Astrodienst Astrowiki

2nd Harmonic (The Reflective Axis — The Other as Mirror): A polarity that reveals what is split, projected, or unintegrated; healing through contrast and perspective.

The aspect: 2nd harmonic, 1/2. This aspect comes from dividing the 360 degrees of a circle by 2, then multiply by 1.

Like this, 360 / 2 = 180 x 1 = 180

Basic influence: Challenges from outside; awareness of other options; opportunities that require you to stretch outside your known boundaries; an opportunity to stand back and reflect; seeing yourself from a distance; putting yourself in someone else’s shoes; seeing yourself through someone else’s eyes. Gaining awareness. Seeing a situation from a new vantage point. Getting distance and gaining perspective.

7th Harmonic (The Fate Line — Karmic Crossings & Mystical Intuition): The realm of destiny threads, psychic openings, and emotional encounters that feel pre‑written.

The aspect: 4/7 harmonic. This aspect comes from dividing the 360 degrees of a circle by 7, then multiply by 4.

Like this, 360 / 7 = 51.42857142857143 x 4 = 205.7142857142857

Convert to time = 205°42’51”

7th Harmonic (The Fate Line — Karmic Crossings & Mystical Intuition): The realm of destiny threads, psychic openings, and emotional encounters that feel pre‑written.

The aspect: 5/7 harmonic. This aspect comes from dividing the 360 degrees of a circle by 7, then multiply by 5.

360 / 7 = 51.42857142857143 x 5 = 257.1428571428571

Convert to time = 257°08’34”

7th Harmonic (The Fate Line — Karmic Crossings & Mystical Intuition): The realm of destiny threads, psychic openings, and emotional encounters that feel pre‑written.

The aspect: 5/7 harmonic. This aspect comes from dividing the 360 degrees of a circle by 7, then multiply by 5.

360 / 7 = 51.42857142857143 x 5 = 257.1428571428571

Convert to time = 257°08’34”

Mercury

  • Hermes
  • Hermes Trismegistus
  • The Magician
  • Commerce & Trade
  • Communication, Linking & Connecting Information
  • Dexterity
  • Direct observation (seeing it with your own eyes)
  • Language & Symbols
  • Learning
  • Lingo
  • Local Travel & Between Worlds
  • Messenger & Psychopomp
  • Siblings
  • Speech & Hearing
  • Tricksters
  • Vernacular
  • Where your mind goes
  • Agent
  • Alternate
  • Assistant
  • Bootlegger?
  • Charioteer
  • Courier
  • Coyote
  • Gossip
  • Grifter
  • Informer
  • Journalist
  • Mail Carrier
  • Mule? (with Pluto?)
  • Neighbor
  • Networker
  • Page
  • Pickpocket
  • Postal Worker
  • Proxy
  • Psychopomp
  • Raconteur
  • Reporter
  • Representative
  • Runner
  • Scout
  • Sibling
  • Substitute?
  • Storyteller
  • Student
  • Thief
  • Travel guide
  • Trickster
  • Writer

Pluto

  • Hades
  • Pluton
  • "The Rich One"
  • Dispater
  • Abducted Persephone
  • All the gems and precious metals under the Earth belong to him, but he owns no property above ground except a few temples
  • His most prized possession is the Helmet of Invisibility
  • Alchemy
  • Area of life where you crave intense experiences
  • Buried Treasure (How Dirty Do Your Hands Have to Get?)
  • Cleansing & Renewal
  • Corruption & Annihilation
  • Descent
  • How much are you willing to change to get the power you want?
  • How power transforms you (for better or worse)
  • Indefatigable
  • Magic & Sorcery
  • Manipulation & Power Struggles
  • Passion & Consumption
  • Pluto *wasn't* a nice guy!!!
  • Rebirth
  • Relentless
  • Soul retrieval
  • The thing that's taking a toll on your life (the thing that's killing you right now)
  • "Transformation" and its synonyms: conversion, metamorphosis, alteration, modification, reformation, revision, transition, shift, transfiguration, adjustment, deformation, transmutation, distortion, mutation, disfigurement, supplantation, transmogrification (TRANSFORMATION Synonyms: 30 Similar Words | Merriam-Webster Thesaurus)
  • Trash
  • Underbelly & the Seedy Side of Life
  • Underground & Mining
  • Underworld & Criminal Activity
  • What level of corruption will you stoop to in order to achieve the power you crave?
  • You can transform only so much before you become unrecognizable (do the people you loved still know you?)
  • Captive
  • Conspiracy theorist
  • Criminal
  • Detective
  • Dis-empowered person
  • Garbage collector
  • Hostage
  • Kidnapper
  • Paranoid person (in Aquarius = Paranoid Android)
  • Powerful person
  • Psychologist
  • Rehabilitator
  • Researcher
  • Saboteur
  • Shaman
  • Spy
  • Svengali
  • Therapist
  • Transformer
  • Up-cycler
  • Usurper
  • Villain
  • Jupiter / Pluto make a conjunction every 12.46 years
  • Saturn / Pluto make a conjunction every 33.42 years
  • Uranus / Pluto conjunction varies between 126.95 to 170+ years
  • Neptune / Pluto make a conjunction every 492.328 years

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