Duads are twelve 2.5 degree segments of a zodiac sign.
Each duad starts with the zodiac sign and then progresses through each of the following signs in order.
E.g. if the zodiac sign is Sagittarius, then the first 2 degrees 30 minutes will be the Sagittarius duad of Sagittarius, the second 2 degrees 30 minutes will be the Capricorn duad of Sagittarius, the third 2 degrees 30 minutes will be the Aquarius duad of Sagittarius .. and so on.
The duad of the sign considerably affects the way the sign works.
For example: the duad of your Ascendant will colour the qualities of the Ascendant and the way you use your ascendant sign.
E.g. if someone has the Cancer duad of Sagittarius rising they will use the Sagittarian energy quite differently to someone who has the Scorpio duad of Sagittarius rising.
They will even look quite different.
Both will present a more “watery” feel than Sagittarius Ascendant normally does.
The duads show your instinctive attraction towards a person.
The reason why is because these zodiac signs run through the family genes, the person will also attract and be attracted to non-family members with the Sun, Moon, Angles or Nodes in these signs.
Therefore: people frequently marry people who fit this criteria.
For a woman the duads of your Sun, Moon, Mars, Ascendant and Nodes are usually the main significators of attraction to the opposite sex.
E.g. if a woman has her Sun in Cancer in the Libra duad, she will be instinctively drawn to Libran men, or, to a lesser extent, people with the Moon, Mars, Angles or North Node in Libra.
For a man, the duads of your Sun, Moon, Venus, Ascendant and Nodes are the main significators of attraction towards the opposite sex.
E.g. if a man has his Moon in Taurus in the Aries duad his instincts will draw him to women with the Moon or Venus in Aries, or to a lesser extent, the Sun, Angles or Nodes in that sign.
ATTRACTION:
A woman will find a man sexy if he has Mars in the same sign as her Mars duad.
E.g. a woman whose Mars is at 1°39' Virgo will have Mars in the Virgo duad, so she is likely to find men with Mars in Virgo sexy.
A man will find a woman sexy if she has her Venus or Moon in the same sign as his Venus or Moon duad.
E.g. a man with his Venus at 16°23' Libra in the Aries duad will find women with Venus in Aries quite beautiful.
He will also like women with the Moon in Aries.
The Nodes are important for emotional connection between people.
These connections show very strongly in marriage and family charts.
E.g. a person with the North Node at 4°58' Taurus in the Gemini duad, will be drawn to those who carry Gemini in their Sun, Moon, Ascendant, MC and/or Vertex.
This may indicate a soul connection.
These signs will also run through the family.
If someone does not have the zodiac sign or duads that your genetic patterning requires, there is less likely to be any deep, instinctual level of attraction.
You may like or dislike them according to the synastry of their chart and yours, but there is not the “kick” that starts a relationship.
Therefore: in relationship and synastry charts, the duads are the first step in assessing whether someone will be attracted to another.
Duads in relationships and family
Duads are twelve 2.5 degree segments of a zodiac sign. Each duad starts with the zodiac sign and then progresses through each of the following signs in order. E.g. If the zodiac sign is Sagittarius, then the first 2 degrees 30 minutes will be the Sagittarius duad of Sagittarius, the second 2 degrees 30 minutes will be the Capricorn duad of Sagittarius, the third 2 degrees 30 minutes will be the Aquarius duad of Sagittarius .. and so on. (Click to see Duad Table )
There is a second kind of division where the 1st dwad of any sign is the Aries dwad, the 2nd is the Taurus dwad .. and so on. These are easy to calculate on a computer because they are the 12th harmonic chart.
(See article on calculating duads and a little duad calculator in The duad System menu).
For the sake of convenience I call the first type of division ‘duads’ and the second type of division ‘dwads’.
The duad of the sign considerably affects the way the sign works. For example: The duad of your Ascendant will colour the qualities of the Ascendant and the way you use your ascendant sign. E.g. If someone has the Cancer duad of Sagittarius rising they will use the Sagittarian energy quite differently to someone who has the Scorpio duad of Sagittarius rising. They will even look quite different. Both will present a more “watery” feel than Sagittarius Ascendant normally does.
SUBRULER
This can be taken further. The person who has the Cancer duad of Sagittarius rising will have the ruler of Cancer, the Moon, as the sub-ruler of the Ascendant. The position of the Moon and its aspects would be important, particularly if the Moon aspects Jupiter, the ruler of Sagittarius, or aspects the Ascendant itself.
SIGN- HOUSE:
The zodiac sign that is the same as the duad and the house it rules will also be important. If someone has the Scorpio duad of Sagittarius rising, then it is likely that the 12th house is ruled by the sign Scorpio and this increases the importance of that house.
The duads are important for all planetary and angle placements and particularly important for the Sun, Moon, Moon’s Nodes , Ascendant-Descendant, MC-IC , Vertex– antiVertex , angular planets and the ruling planet.
In my research on this system I found that these positions also described planets and angles in the charts of parents, grandparents and other members of the family. For example:
A mother may have the Sun in the sign Gemini, her child may have the Sun in the Gemini duad of any sign. This child may have a child with the Sun in the 3rd (Gemini) dwad of a sign.
Taking this back a generation— you can have the mother with her Sun in Gemini in the Scorpio duad (12.5-15 degrees of Gemini). Her father may have the Sun in Scorpio. This duad is the 6th (Virgo) dwad of Gemini, so her mother may have the Sun in Virgo, And/or one of her other children may have the Sun in Virgo.
The Sun, Moon, angles and Nodes can be interchangeable (particularly the Ascendant – Moon and Sun-MC) so a person can have the Moon in the same sign as a parent’s Sun’s duad, or the Ascendant in the same sign as the mother’s Moon’s duad, and so on ….
In a family a parent or child may have their Sun conjunct the other’s MC or IC, giving a very strong tie between these two people. There is also a particularly strong correlation between the duad of a parent’s Sun and the child’s MC or IC or vice versa.
I have found there is a consistent and easily traceable connection between the position of the planets and angles in zodiac signs and duads from generation to generation. Also, there is often a strong affinity between the people who carried this sign/duad flow in the different generations. E.g. a grandparent may have their Sun in Aquarius and the grandchild have their Sun in the Aquarius duad of Taurus. This will tend to give an attraction and a feeling of affinity between the two.
So: Zodiac signs their duads and dwads are an astrological map of genetic inheritance within a family.
RELATIONSHIPS:
The duads show your instinctive attraction towards a person. The reason why is because these zodiac signs run through the family genes, the person will also attract and be attracted to non-family members with the Sun, Moon, Angles or Nodes in these signs. Therefore: People frequently marry people who fit this criteria.
For a woman the duads of your Sun, Moon, Mars, Ascendant and Nodes are usually the main significators of attraction to the opposite sex. E.g. if a woman has her Sun in Cancer in the Libra duad and the 4th duad (Cancer), she will be instinctively drawn to Libran and Cancerian men, or, to a lesser extent, people with the Moon, Mars, Angles or North Node in Libra or Cancer.
For a man, the duads of your Sun, Moon, Venus, Ascendant and Nodes are the main significators of attraction towards the opposite sex. E.g. if a man has his Moon in Taurus in the Taurus duad and 1st (Aries) duad of Taurus his instincts will draw him to women with the Moon or Venus in Taurus or Aries, or to a lesser extent, the Sun, Angles or Nodes in that sign.
SEXUAL ATTRACTION:
A woman will find a man sexy if he has Mars in the same sign as her Mars duad. E.g. a woman whose Mars is at 1Virgo39 will have Mars in the Virgo duad and 1st (Aries) dwad, so she is likely to find men with Mars in Virgo or Aries sexy.
A man will find a woman sexy if she has her Venus or Moon in the same sign as his Venus or Moon duad. E.g. a man with his Venus at 16Libra23 in the Aries duad and 7th (Libra) dwad of Libra will find women with Venus in Aries and Venus in Libra quite beautiful. He will also like women with the Moon in Aries or Libra.
The Nodes are important for emotional connection between people. These connections show very strongly in marriage and family charts. E.g. A person with the North Node at 4Taurus58 in the Gemini duad and 2nd (Taurus) dwad, will be drawn to those who carry Gemini and/or Taurus in their Sun, Moon, Ascendant, MC and/or Vertex. This may indicate a soul connection. These signs will also run through the family.
If someone does not have the zodiac sign or duads that your genetic patterning requires, there is less likely to be any deep, instinctual level of attraction. You may like or dislike them according to the synastry of their chart and yours, but there is not the “kick” that starts a relationship.
Therefore: In relationship and synastry charts, the duads are the first step in assessing whether someone will be attracted to another.
Source: http://aliceportman.com/190/
Calculating Duad and Dwad charts
Duads are twelve 2.5 degree segments of a zodiac sign. Each duad starts with the zodiac sign and then progresses through each of the following signs in order. E.g. If the zodiac sign is Sagittarius, then the first 2 degrees 30 minutes will be the Sagittarius duad of Sagittarius, the second 2 degrees 30 minutes will be the Capricorn duad of Sagittarius, the third 2 degrees 30 minutes will be the Aquarius duad of Sagittarius .. and so on. (Click to see Duad Table )
There is a second kind of division where the 1st dwad of any sign is the Aries dwad, the 2nd is the Taurus dwad .. and so on. These are easy to calculate on a computer because they are the 12th harmonic chart.
CALCULATING THE DUAD CHART BY HAND OR WITH CALCULATOR
As each duad is a “mini sign” the 2½ degrees it covers can be converted into the 30 degrees of a normal zodiac sign and make a whole new duad chart. It is relatively simple to calculate the duad zodiac degree by taking the start of the duad degree away from the degree of the planet and then converting that degree into the zodiac degree within that duad.
For example: Adam’s natal Sun is 8Scorpio23. This is the Aquarius duad of Scorpio and that duad starts at 7.30° Scorpio
08.23 – 07.30 = 0.53
So Adam’s Sun duad is 0° 53’ into the Aquarius duad. Using a calculator that calculates in units of 60, you can multiply 0° 53’ x 12 and this will give you 10°.36’ Therefore Adam’s duad Sun is 10° 36’ of Aquarius.
You can follow the same method for all the other planets and angles in the chart to make up a duad chart. The duad chart has the Ascendant in the same position as that of the natal chart, but the MC and IC can be in any house in the duad chart. Mercury and Venus can be anywhere in the duad chart, they don’t have to be close to the Sun.
Following this the dwad chart is quite easy to calculate as the planets and angles will be in the same degree as that of the duad chart, but usually in a different dwad sign.
DUAD CALCULATOR
Australian research astrologer Ray Murphy has been kind enough to design this little duad calculator for me. All you have to do is put in the degree and sign of each planet and it will automatically calculate its duad position. If you want to use it you will need to download it to your own computer, save it and then open it.
DUADS PROGRAM
Highlight the planet then enter its degree and minute, then click its sign. Continue doing this until all planets and angles have been covered and then click the Calculate button under the DUADS column. The program will automatically calculate the duad.
USING SOLAR FIRE DELUXE or SOLAR FIRE GOLD
Esoteric Technologies were kind enough to incorporate the calculation of duad charts in their program.
To calculate the duad chart, highlight the natal chart on the first page of Solar Fire, then go to the “Chart” menu, click Vedic and then Vedic D12 Dwadashama. Click OK. The computer will ask you if you want to use Vedic settings click NO and you will have your duad chart.
To calculate the dwad chart, go to the Chart menu on the top left hand side, then click ‘Harmonics, Transform..’ then click Harmonic Chart. In the box above titled ‘Harmonic’ put in 12 and then click OK. You then have the 12th harmonic chart, which is the dwad chart
