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CosmiTec's Love Letter, Issue #261 -- 💌Composite Charts vs. Synastry
August 21, 2026
Dear

There are no special astrological configurations active that differ from the norm this month.

Nevertheless, the September 11 New Moon period is something to take into account, and also the Black Moon and the mean Lunar Nodes at the same numerical degree in a zodiac sign around September 6 (which increases the annual recurring odds of a natural or man-made disaster).

In the featured article below we answer the question posted by a subscriber who wanted to know our opinion about which tool is the better one to delineate a relationship: a composite chart or synastry.

Love always❤️
Luc De Jaeger


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Table of Contents

Our regular features
  1. The Love Forecasts for the Month
  2. Love Quotes of the month
  3. What's new on our web site?

Our occasional features

  1. Composite Charts vs. Synastry


Love Forecasts for September 2026

(Slowly hover over a paragraph with your mouse and wait a second for additional astrological information here and there. Unfortunately, this feature might still not work on smartphones!)

All dates are calculated for the European Time Zone.

Click here to download the September 2026 calendar in pdf format.

In general and on a mundane level, events are likely to happen around September 4-5, 11, 18-19 and/or 26.

During this month of September there are no planetary configurations of stationing outer planets active that could affect some specific birthdays.

Generally speaking, September 21, 22, 23, 24, 25, 26, 27 and 28 are "less lucky" days.

Try not to initiate any major projects on these dark, unfortunate, chaotic and empty days (no proposals, no marriages, no changes of residence,...) because things may not go as planned or wished.

In the 45° dial, there are the following powerful midpoint combinations between outer planets going on that will mark this month's Zeitgeist (and thus work out the whole month):
  • The Jupiter/Pluto midpoint hits the Saturn/Uranus midpoint (JU/PL = SA/UR) which will be exact around September 9.

    This midpoint combination suggests, among others: a huge storm with severe consequences, the fatal crash of a big plane, the arrest of numerous criminals or gangs.


  • The Jupiter/mean Lunar Nodes midpoint hits the Saturn/Neptune midpoint (JU/KN = SA/NE), exact around September 19.

    This midpoint combination suggests, among others: protecting or supporting the poor or ill or victims, the numerous victims or suffering people, the numerous sacrifices, finding solutions for environmental issues, the decay affecting masses of people, the widespread dissatisfaction and/or suspicions.


  • The Jupiter/Chiron midpoint equals the Saturn/Uranus midpoint (JU/CH = SA/UR) which will be exact around September 22.

    This midpoint combination suggests, among others: to find a solution for what's broken or defective, to try to de-stress, the healing break-up or disruption, the successful surgery, getting through the storm or disruptive weather, the medical challenges.


  • Saturn hits the Jupiter/Uranus midpoint (SA = JU/UR), exact around September 25.

    This midpoint combination suggests, among others: the sudden (financial) losses or expenses, the market crash, to suddenly hesitate, the temperance over excess, the enhanced ability to work slowly and patiently toward your goals, the increased resistance to change, the disappointments during efforts to bring new life to old methods or habits, the delays or restrictions towards progress or relief, to block the release of information or documents.


  • The Jupiter/Saturn midpoint hits the Neptune/mean Lunar Node midpoint (JU/SA = NE/KN), exact around September 27.

    This midpoint combination suggests, among others: the severe damage to buildings, the destruction of (a) building(s) or (a) construction(s), the epidemic, the damage to property or real estate.
Around September 1, Mars at 13° Cancer squares Saturn at 13° Aries.

This Mars-Saturn square is obstructive, blocking and a sad one.

It looks like you are fighting wind mills and your actions or initiatives don't work out.

Some of you may give up, resign, quit and feel discouraged.

If you are born around January 3-4, February 2, March 3-4, April 3-4, May 3-4, June 3-4, July 5, August 5-6, September 5-6, October 6-7, November 5-6 or December 5, beware of disputes, disagreements, legal issues, prosecutions and the like.

Some others may be involved with home repairs or activities related to real estate.

But, on the other hand, if you are born around January 13-14, February 27, April 13, May 29-30, July 15-16, August 31 - September 1, October 16-17 or November 30, expect financial issues, monetary shortages or blocks

Another possibility revolves around unrequited love, being very disappointed in love, being troubled by the loss of love or face health issues.


Around the same day of September 1, there are sunny spells.

Around September 2, there is obstruction, not being able to develop properly, not being able to decide, health issues, dissatisfaction, legal issues, separation and/or being fired, especially affecting you in some way, if you are born around January 3-4, February 2, March 3-4, April 3-4, May 3-4, June 3-4, July 5, August 5-6, September 5-6, October 6-7, November 5-6 or December 5.

Around the September 4 Last Quarter Moon at 11° Gemini, there can be auspicious developments going on and possibly great news.

Around September 8, Mercury at 25° Virgo is inconjunct Eris at 25° Aries, indicating a short period of discord, disputes, disagreements.

It's not a good day to buy products today because the item(s) may be defective, out of stock or arriving with delay.

Following astrometeorology, it can be a dark and overcast day.


Venus enters Scorpio through the 'Gates of death', while Mercury enters Libra and Uranus stations at 5° Gemini, ready to turn backwards, all happening around September 10.

So, with lots of planetary activity today, this might become an important day for sure.

The entrance of Venus in the sign of its detriment suggests the death of a loved one, but also financial affairs (and likely expenses).

Issues around debt, loans, insurances, taxes and other shared resources may pop up.

When Mercury enters Libra, prepare for signing contracts or agreements.

Perhaps a job interview may be successful.

There can be an invitation to attend some event, a meeting or gathering as well.

It's a great time for some small talk and discussions.

Anytime Uranus stations, expect a sleepless night, lots of nervous tension, irritation and noise.

At 5° Gemini, the station might mark the end of a chapter in life for some of you.

If you are Aquarius or have Aquarius rising, the station will affect you more and some of you may not feel too well around this day.

Some of you may be ill while others can face a shock experience or a disruption that brings you down to earth suddenly.

Following astrometeorology, Uranus stationing coincided with (thunder)storms and heavy snow (if you live in the southern hemisphere) in the past.

Also, Venus entering Scorpio, brought lots of water-related issues as well in the past.

Around the September 11 New Moon at 18° Virgo, some of you may find work while others may find love during this whole lunation period.

The work may involve languages (translations, for example) or something related to literature, design, aesthetics, or fashion.

Aside from switching careers, it's also a good period in time to change the place of residence or move.

Mercury at 3° Libra opposes Neptune at 3° Aries around September 12.

This is a good day for a date or enjoyable encounter or meeting.

There can be purchases or deliveries that bring joy or increase your comfort somehow.

However, all oppositions to dissolving or missing Neptune point to a lost/missing document or letter, a lost cat, unanswered messages, news you dislike, chaotic traffic or transportation issues, fake news or hoaxes, among others.

Some information is kept secret.

Following mundane astrology, such oppositions coincided with gas explosions or issues related to gaseous or foggy situations in the past.

Following astrometeorology, there can be lots of humidity in the air, but also quite some clouds here and there.


Around September 14, there are sunny spells.

Venus at 3° Scorpio squares Pluto, its own dispositor, at 3° Aquarius around September 15.

Whenever a planet squares his or her own dispositor, it denotes trouble.

Moreover, Venus and Pluto are opposites by nature and when both planets square each other, they clash and fight with each other (reflecting the common power plays).

There is jealousy, anger and emotions may run high.

Most Venus-Pluto aspects are (financial) blackmail aspects as well.

Don't cross lines, don't be too forceful and know your boundaries (and these of others).

Following astrometeorology, Venus-Pluto aspects have brought showers and bouts of (intense) precipitation here and there in the past.

Around the September 18 First Quarter Moon at 25° Sagittarius, Mercury at 12° Libra opposes Saturn at 12° Aries.

Some information and/or documents can be withheld.

There are delays in deliveries and/or here and there some traffic jams may be part of today's energies.

Some of you may receive sad or bad news.

It can become a bit of a somber day.

Electronic or digital devices may become defective around this day, so, better take precautions!

This lunation period suggests some unreal and overwhelming events that might cause cognitive dissonance for some of you.

Following astrometeorology, Mercury-Saturn aspects indicate clouds, dreary and overcast weather here and there.

The Sun enters Libra around September 22-23, enjoying the meeting with someone, or gatherings with others.

It's a good day to encounter someone or socialize.

Around September 23, there are sunny spells.

There are clouds in the sky around September 25.

Around the September 26 Full Moon at 3° Aries, the Sun at 2° Libra opposes Neptune at 2° Aries (in other words, this Full Moon is conjunct Neptune).

All oppositions to Neptune are related to dissolving, missing and/or absent people, denial, secrets and also lies.

A celebrity, VIP, higher-up etc. may be fired, abdicate, resign, crosses over or just takes leave, flees or escapes.

Some of you may be in 'trance', not properly awake that is as well and may have to leave, flee away.

Following astrometeorology, this Full Moon degree coincided with hot weather (high temperatures) in the past.

There are clouds in the sky around the same day of September 26.

Around September 27 , Mercury at 25° Libra opposes Eris at 25° Aries, indicating a short period of discord, disputes, disagreements.

Around September 28, Mars enters hot and Royal Leo, indicating a very chaotic and busy period in time.

Beware of heart issues and take care of your health.

If you are born around January 20-21, March 5-6, April 20-21, June 5-6, July 23, September 7-8, October 23-24 or December 7, beware of legal issues, health issues (with possible hospitalization), dissatisfaction, feeling unrewarded or unheard and trying to enforce a change, ambition emerging out of discontent, not being to live together with someone, disputes and disagreements.

Following mundane astrology, beware of wildfires and raging fires here and there.

Buildings or real estate can be on fire.

Following astrometeorology, fiery (and hot and dry) Mars in hot and dry Leo, rises the temperatures the coming period and increases the odds of dry weather.


Mercury at 29° Libra opposes Chiron at 29° Aries, just hours before entering Scorpio around September 29-30.

Beware of electric or electronic devices and products being defective.

All Mercury-Chiron aspects are disruptive: not only disrupting electronics and electricity but also the internet and websites, traffic and transportation (in the widest sense).

There can be news, documents, letters or information concerning taxes, loans, debt, insurances, inheritances and other shared resources.

Following mundane astrology, there is the likelihood of severe traffic and/or transportation accidents here and there too.

All kinds of traffic in whatever way or form can be affected (involving pedestrians as well as people taking public or personal transportation vehicles).

In the past, Mercury (of transportation and traffic) crossing 'the Gates of death' (0° Scorpio) coincided with lots of severe road, transportation or rail accidents, resulting in numerous casualties.

Following mundane astrology, the current ongoing planetary configurations late September and early October (especially September 30 and October 1) coincided with earthquakes, landslides, and other disasters involving the earth's crust here and there in the past.



Love Quotes of the Month

Happy marriages begin when we marry the ones we love and they blossom when we love the ones we marry.
-- Thomas Mullen --

When the world around me is going crazy, I just have to look at my dog to know that good still exists.
-- Source unknown --

I promise to plant kisses like seeds on your body, so in time you can grow to love yourself as I love you.
-- Source unknown --

Respect yourself enough to let go of someone who doesn't see your worth.
-- Source unknown --

To be fully trusted is a greater compliment than to be fully loved, for you cannot love what you do not trust with your soul.
-- Steve M Valentine --

A pair of powerful spectacles has sometimes sufficed to cure a person in love.
-- Friedrich Nietzsche --


What's New on Our Web Site?

In the previous Love Letter we tried out some emojis but not all e-mail clients and browsers printed these properly.

This time, we give it another try by copying the emojis directly to the newsletter body instead of using the html-codes in hoping that all e-mail clients and browsers can read the emojis properly this time.

In case the numerical code is printed again instead of the corresponding emojis, we will stop trying further and leave it at this trial.

We noticed that the latest update of the Chrome browser unexpectedly messed up some parts of our website so that we had to scramble to find a new code to fix the issues.

It took some effort and quite some of our time to update dozens of html-pages (again), but we could finally fix the issue.


Composite Charts vs. Synastry

Astrology offers several methods for analyzing relationships, with synastry and composite charts being among the most popular.

While both examine the dynamics between two people, they operate on fundamentally different principles and serve distinct purposes in relationship astrology.

Synastry

Synastry involves overlaying two natal charts to examine how the planets from one person's chart interact with the planets, angles, houses, midpoints, elements, planetary patterns of another's chart.

It's essentially a compatibility analysis, comparing both natal charts as stand-alone charts together in different ways.

Synastry reveals the attraction between individuals, agreement or disagreement, their communication styles, friction and frustration points (emotionally, physically, mentally) and how well the partners might be able to maintain a lasting bond.

Composite Charts

Composite charts create a third separate chart representing the relationship itself as an independent entity, as a separate whole.

Rather than comparing two separate charts, the composite chart calculates the midpoints between each planet in both natal charts.

Hence, this tool requires calculating a new horoscope and is thus a mathematical construct.

This horoscope does not exist in a real time-space continuum like the partners who were born in time-space.

To counter that criticism, the Davison chart was created (which is another kind of composite chart that calculates the place midway between the birth places of both partners).

Every point or planet in the composite chart is calculated from the midpoints of the same points or planets in the partner's natal horoscopes.

There are different manners to calculate the angles though, and there is no agreement among astrologers what method works best.

Hence, we consider the composite chart to be an experimental tool.

Composite charts reveal the nature and life force of the partnership itself, how the partnership presents to the world and it may also be used to time certain events, experiences or phases the bond goes through.

Conclusion

If you want a compatibility assessment to find out about the interpersonal dynamics, then synastry is the way to go.

Just compare both natal horoscopes with each other in as many ways as possible and especially focus on the stand-outs (as always!).

Only use the composite charts to add another layer to the analysis on condition you know what you are doing.

The composite is a mathematical construct (and experiment).

For example, it makes no sense to use the planets in the zodiac signs in composite charts, even though lots of astrologers still do that.

The danger is projecting your own imagination and assuming you are analyzing the relationship by following and analyzing a mental and mathematical construct.

You can find tons out about the relationship already with synastry alone, so, don't go for the composite charts too soon as it has too a limited (added) value and is too experimental.


Fundraising Campaign

Norma Sancho, an unemployed woman from Mexico who pursues a university degree to improve her chances of finding a good job over there, started a fundraising campaign to help cover her basic needs like food and laundry, and continue paying for her education.

If you are are able to support her, you can donate through the following link: https://whydonate.com/fundraising/unemployed-assistance-for-basic-needs

She will be immensely grateful.


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Luc De Jaeger
Cosmic Technologies (CosmiTec)
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