Free Bonification & Maltreatment Calculator

Bonification is when a planet in your chart gets supported, stabilized, or actively helped by the chart's benefics (Jupiter and Venus). The word translates a Greek technical term used by Antiochus of Athens in the first century CE and recovered by modern Hellenistic astrologers like Chris Brennan and Demetra George. A bonified planet still has its own nature, but its significations get to come through cleanly. Think of it less as "this planet is good" and more as "this planet is allowed to do its job."

What sets the Hellenistic version apart from generic "well-aspected" talk is that it isn't symmetric. A benefic's help doesn't count equally in every chart. The benefic of your sect (Jupiter if you were born during the day, Venus if you were born at night) carries the strongest bonifying force. The other benefic still helps, but with a thinner touch. That single rule, sect, is what most modern blogs about benefic aspects skip, and it's why two charts with "the same" Venus trine can read very differently.

Maltreatment is the inverse: when malefics (Mars and Saturn) actively damage, suppress, or distort a planet's significations through specific configurations. The pop-astrology word "afflicted" gets thrown at any hard aspect from any malefic. Maltreatment in the Hellenistic sense is stricter. It usually requires the contrary-to-sect malefic (Mars in a day chart, Saturn in a night chart), a specific configuration like besiegement or square, and often a cumulative pattern rather than a single contact.

Two practical consequences fall out of that. First, your Mars square Venus might not be maltreatment at all if Mars happens to be the sect-favored malefic and Venus has its own protections. Second, planets can be maltreated without any classical hard aspect, by sitting between two malefics or by being deserted by every benefic in the chart while a malefic stares at them.

The reading you get from this calculator scores both directions per planet. The labels "clean," "pressured," and "strongly maltreated" exist because the question is rarely "is this planet hurt yes or no." It's "how loaded is this planet, and which way."

The Antiochus tradition organizes the support a planet can receive into seven configurations. Brennan reconstructs and sequences them in Hellenistic Astrology (2017), chapter 14. This calculator implements all seven:

1. Bodily conjunction with a benefic. A benefic in the same degree fuses its nature into the planet's expression. Conjunction with the sect benefic counts heaviest.
2. Aspect from a benefic by trine, sextile, or square. Yes, square. The Hellenistic tradition treats squares from benefics as supportive, just sharper and more activating than trines.
3. Adherence to a benefic. A conjunction within 3° of orb is treated as "sealed." The contact has perfected or is about to perfect; the benefic's nature is locked in. This stacks on top of the base conjunction weight.
4. Enclosure by benefics. When the closest body forward in longitude and the closest body backward in longitude are both benefics within 15°, the planet is hemmed in by helpful rays. Demetra George covers this configuration in detail; she calls the malefic version "besiegement."
5. Spear-bearing (doryphory). A benefic in the sign immediately forward of the planet stands as a guardian, like a spear-bearer in a king's retinue. Both benefics in the next sign forward count double.
6. Predominator over a malefic. When the planet is conjunct a malefic in the same sign at a lower degree, Ptolemy's predominator rule applies: the lower-degree planet sets the terms of the fusion. The malefic is constrained by the planet, not the other way around.
7. Sect-favored placement. A planet that is the sect benefic itself accumulates its own bonification independent of aspect.

The page lists the specific triggers your chart hit so you can see why the score landed where it did. None of these conditions is a magic bullet. Several mild ones outrank one strong one.

The corresponding list, again following the Brennan and George reading of Antiochus and Vettius Valens (Anthology II.17 covers the harshest cases):

1. Bodily conjunction with the contrary-to-sect malefic. Mars in a day chart or Saturn in a night chart, sitting on top of the planet's significations.
2. Aspect from a malefic. Squares and oppositions weigh heavier than trines and sextiles. The contrary-to-sect malefic delivers roughly 50% more damage than the in-sect malefic at every aspect type.
3. Adherence to a malefic. Conjunction within 3° of orb. The malefic contact is sealed; the planet cannot pull free of the configuration before the malefic perfects.
4. Besiegement / enclosure by malefics. Hemmed in on both sides by Mars and Saturn within a 15° longitude window. The single most concentrated form of maltreatment in the doctrine.
5. Overcoming by a malefic from the tenth sign. The kathuperteresis case: a malefic upon the planet's tenth (a superior square from ten signs forward) presses down with classical weight. Heavier still when contrary to sect.
6. Predominated by a malefic. Same-sign conjunction with the planet at a higher degree than the malefic. The malefic predominates by Ptolemy's rule and the configuration runs on its terms.
7. Aversion to the chart's benefics. A planet that no benefic can see (no whole-sign aspect to Jupiter or Venus) is left undefended. The penalty is heaviest when both benefics are averse, lighter when only the sect benefic is unable to reach the planet.

Sect runs through the whole calculation. Two charts with identical aspects but opposite sect classifications can produce very different bonification and maltreatment scores. A few examples that show up constantly:

• Day chart, Jupiter trine Mercury. Jupiter is the sect benefic; the trine carries full bonifying weight on Mercury.
• Night chart, same trine. Jupiter is now out of sect. The trine still helps, but with roughly two thirds the weight.
• Day chart, Mars square Mercury. Mars is contrary to sect. The square counts as full maltreatment.
• Night chart, same square. Mars is the in-sect malefic. The square still costs Mercury something, but the damage is muted because Mars is doing what it's supposed to do.

If your sect calculator says "diurnal" or "nocturnal" and you don't carry that label through the rest of your interpretation, you're throwing away half the doctrine.

Counteraction is the third axis on this page, and it's the part most modern presentations skip. Brennan and Patrick Watson have walked through it on the Astrology Podcast. The simple version: when bonification and maltreatment both apply to the same planet, they don't cleanly cancel. They interact.

Mitigated maltreatment. Mars is squaring your Venus, but Jupiter is also trining her. Venus still has work to do, but the harshest reading is softened. The calculator flags this as "mitigated maltreatment" when the bonification score outweighs the maltreatment score by more than ten points.

Compromised bonification. Jupiter trines your Mercury, but Mars also squares it and Saturn besieges it. The bonification arrives partial. Effort and friction surround the gift. The calculator flags this when maltreatment leads bonification by more than ten points.

Balanced. Both forces score above thirty and within ten points of each other. The planet works, but only after a fight. Reading balanced rows in your chart is often the most useful exercise on the page; these are the placements where life experience shows the doctrine working.

The page outputs three numbers per planet plus a one-line interpretation.

Bonification 0 to 100. Anything above 65 is "strongly bonified." 30 to 65 is "supported." Under 30 is "clean," meaning the planet isn't getting much help but isn't being actively backed either. Don't read low bonification as bad. Plenty of effective planets are clean rather than supported.

Maltreatment 0 to 100. Above 65 is "strongly maltreated" and worth taking seriously in delineation. 30 to 65 is "pressured." Under 30 is functionally clean.

Counteraction. When both scores are over 30, the page surfaces whether one cancels, mitigates, or compounds the other.

The right way to use the scorecard is to read it after the rest of your delineation, not before. Sect, dignity, house topic, and aspect doctrine come first. Bonification and maltreatment tell you how loud or quiet each of those readings gets to be in the actual life.

The tool uses the Antiochus / Brennan reading of the bonification and maltreatment conditions as the core ruleset, with sect treatment from Vettius Valens's Anthologyand the enclosure logic following Demetra George's exposition. Sect status is computed from the Sun's hemisphere relative to the horizon at the time of birth.

The scoring is weighted, not boolean. A bodily conjunction with the sect benefic counts more than a sextile from the out-of-sect benefic. The weights are calibrated against Brennan's hierarchy of testimonies in chapter 14 of Hellenistic Astrology. Reception, dignity, and angularity are intentionally NOT modeled here; they live in the essential dignity calculator and the chart-ruler tool. Combine the readings yourself; the doctrine is not a single number.

Pair this with the overcoming aspects calculator (the directional layer of the same Antiochus aspect doctrine) and the sect calculator (the prerequisite for everything on this page).

One scope note on planetary classification. This calculator treats Mercury as neutral: neither benefic nor malefic. Hellenistic doctrine actually holds Mercury to be variable (benefic when in aspect with benefics, malefic with malefics), but the implementation choice is contested across the modern Hellenistic literature, so the calculator omits it rather than picking a side. If your Mercury is sitting between Jupiter and Mars by aspect, weigh that yourself.

Sources: Antiochus of Athens (1st century CE), Vettius Valens Anthology II.17, Chris Brennan Hellenistic Astrology: The Study of Fate and Fortune (2017), Demetra George Ancient Astrology in Theory and Practice (Rubedo Press, 2019).