Element and mode together
The twelve signs are sorted twice over. Four elements divide them into groups of three, and three modes divide them into groups of four, so every sign is one unique pairing of the two. Scorpio is the water sign in the fixed mode, alongside Taurus in earth, Leo in fire and Aquarius in air.
The mode is the part usually left out. Cardinal signs are read as beginning things, mutable signs as adapting, and fixed signs as holding a position once taken. Applied to water, which the tradition associates with feeling and with what is not said aloud, that produces the persistence Scorpio is known for. The element supplies the material and the mode supplies what happens to it.
All four fixed signs sit at right angles or opposite one another, which is a geometric fact rather than an interpretive one, and it is why the tradition treats them as a set.
Where this date sits inside the sign
At noon in every year from 1930 to 2035 the Sun on this date has stood between about twenty five and twenty six and a half degrees of Scorpio. That is well into the sign's final third, with roughly four days of solar travel remaining before Sagittarius.
The window is narrow because the calendar tracks the orbit closely. Three common years let the date slip forward against the Sun's progress and the extra February day returns it, so the figure oscillates in a small range rather than sliding. Within one day the Sun covers about a degree, so the hour of birth cannot move either the sign or the band.
Late degrees sometimes get read as a sign running down, which is not how any of this works. Membership is not graded: a position at twenty six degrees belongs to Scorpio exactly as fully as one at six, and what the figure actually decides is which placements it aspects and where it falls among the houses.
The band this falls in
Each sign divides into three parts of ten degrees, and this position is in the last of Scorpio's, from twenty to thirty degrees. The Chaldean order assigns that band to Venus, which is an odd pairing for a sign the older scheme gives to Mars and the modern one to Pluto.
The reading handed down is Scorpio's fixity aimed at something in particular, a person or a piece of work, rather than held generally. A competing scheme based on element and sign order gives this band to Cancer and so to the Moon instead, and both are genuinely used. Whichever ruler is quoted, the material is inherited convention rather than a finding, and this page marks it as such.
What modality does not decide
A mode and an element describe a sign, not a person, and the Sun is one placement among many. The Moon covers about half a sign each day, so on this date it may be in either of two signs depending on the birth hour, and which pair those are changes from year to year. The rising sign runs through all twelve within a day and depends on the latitude of the birthplace as well as the clock.
The widget above computes the exact solar degree from a year, a time and a place, along with the Moon and rising signs and the distance to the nearest sign boundary. That distance is large here, so the sun sign is settled whatever the details. The rest of the chart is where the actual questions remain.
Questions people ask about this
What element and mode is 18 November?
Water and fixed. Scorpio is the fixed water sign, which the tradition reads as feeling that holds its position once taken rather than beginning or adapting.
Is 18 November always Scorpio?
Yes. The Sun is around twenty six degrees into the sign, roughly four days from the Sagittarius boundary, so no year or birth hour changes the answer.
What are the other fixed signs?
Taurus, Leo and Aquarius, one from each of the remaining elements. All four sit at right angles or opposite one another, which is why the tradition groups them.
What degree is the Sun on this date?
Between about twenty five and twenty six and a half degrees of Scorpio at noon across the last century. Your own year and hour narrow that to one figure.
Which decan applies here?
The closing band of Scorpio, twenty to thirty degrees. The Chaldean order gives it to Venus, while the triplicity scheme gives it to the Moon.
Does a late degree weaken the sign?
No. A Sun at twenty six degrees is as much in Scorpio as one at six. The degree governs aspects and house placement rather than membership of the sign.