Free Witnessing (Testimony) Calculator

In Hellenistic astrology, a planet bears witness to another planet or point when it regards that point by one of the five configurations: conjunction, sextile, square, trine, or opposition. Witnessing is testimony. A benefic that witnesses a placement tends to support it, and a malefic that witnesses it tends to apply pressure.

The Greek term is epimartyria, and it shares a root with martureo, the verb for bearing witness, giving evidence, testifying to what you have seen. That visual sense is the point. The old astrologers conceptualized aspects as the planets being able to see or not see each other, borrowed from Greek optical theory where rays travel between the eye and the thing observed. Even the flat modern word carries it: "aspect" comes from the Latin aspectus, a look. A planet does not just make an aspect. It looks at another point, and on the strength of what it sees it gives testimony for or against.

Configurations are defined first by sign, and only then refined by degree. Two planets are configured by sign when they sit in signs that hold one of the five relationships. The rationale, from Antiochus of Athens through Porphyry, is affinity: sextile signs share gender, square signs share modality but differ in gender, trine signs share element and gender, and the opposition sits across the axis.

The signs a planet cannot see are in aversion, turned away. From any sign, four others share no affinity and so make no configuration. This is why the semisextile and the quincunx were never aspects in this tradition. The calculator treats aversion as a real result in its own right: a malefic in aversion to your significator cannot reach it to obstruct, while a benefic in aversion is a friend who cannot see you waving.

Once a sign-based configuration exists, degree closes the distance. When a planet comes within three degrees of exact, the contact reaches its most intense range, called engagement, or for a conjunction, adherence. The Moon gets a wider thirteen degree range. These windows are the closest the tradition came to the modern idea of orbs. If you want the degree-based picture on its own, the partile aspects and applying and separating aspects calculators cover it.

Every planet has a right side and a left side. The configurations it has already passed, the signs earlier in zodiacal order, sit on its right. The ones it is moving toward sit on its left. When two planets are configured by sextile, square, or trine, the one on the right is in the superior position and overcomes the other. The Greek is kathuperteresis, from a word for having the upper hand. The overcoming planet dominates the relationship, for better or worse.

Take Brennan's example. Jupiter in Taurus and Mars in Leo: Jupiter overcomes Mars and can force it to behave better than it otherwise would. Flip it, Mars in Taurus and Jupiter in Leo, and now Mars overcomes Jupiter and drags the same square somewhere worse. Same configuration, opposite verdict, decided entirely by who stands on the right. The superior square is so forceful it has its own name, domination, since the dominating planet sits in the tenth sign from the other. The calculator names the side each witness stands on and flags domination wherever it falls.

Underneath the configurations is a division of labor. The benefics, Jupiter and Venus, affirm what a planet wants to signify. The malefics, Saturn and Mars, negate it. When a benefic's testimony is strong enough to improve a point's condition, that is bonification. When a malefic's testimony is strong enough to corrupt or block it, that is maltreatment. The two were reconstructed from Antiochus as a matched set of conditions: overcoming, opposition and trine, enclosure, adherence, engagement, striking with a ray, and being ruled by a well-placed or poorly-placed planet. The full picture lives in the bonification and maltreatment calculator; witnessing is the layer of testimony underneath it.

None of this is fixed in strength, and sect is the dial. The malefic contrary to sect, Mars in a day chart or Saturn in a night chart, has the most capacity to harm. The benefic of sect, Jupiter by day or Venus by night, has the most capacity to help. So the same Mars square reads as a serious maltreatment in one chart and a manageable one in another, purely on day or night. The calculator weights every testimony by sect rather than treating Mars as Mars and Saturn as Saturn. Enclosure, where a point is hemmed between the two malefics or the two benefics, is read in full by the besieged planet calculator.

Before you take a maltreatment at face value, check for reception. Reception comes from the guest and host model: the ruler of a sign is the host, and a planet visiting that sign is its guest. When a point is configured to its own domicile lord, host and guest are in contact, and a more supportive relationship forms. So when a planet is being maltreated but sits in the maltreater's own sign, the harm tends to be less severe and more workable than it looks.

Stronger still is mutual reception, two planets each sitting in the other's domicile, supporting each other like family. The calculator flags reception and mutual reception on each testimony so a frightening looking square does not get read out of context.

This technique earns its keep on the chart's most loaded points. The same testimony logic extends to any significator, including the Sun, the Moon, and the Lot of Fortune. Benefics bearing witness to Fortune and the lights was one of the marks the Hellenistic astrologers read for a flourishing life, the way malefic testimony to those points marked where difficulty gathered. The witnessing report includes the Ascendant and the Lot of Fortune by default for exactly this reason, so you can see who testifies to the parts of the chart that carry the most weight.

Read it as the ancients did: a record of who in the chart is watching, who has the better view, and what each one testifies.