The Electric Caliper: A Self Built on Sudden, Meticulous Reinvention

Introduction

This placement is one of the personality’s most defining knots, as it ties the planet of radical, collective-oriented change directly to the core of the personal self. Unlike a two-planet aspect between separate internal functions, ♅ Uranus in the 1st house fuses its energy with the Ascendant, the cusp of identity that shapes how a person experiences their own agency, first impressions, and place in the world. The ♍ Virgo sign filter ensures this fusion is grounded in practicality and analysis, rather than abstract rebellion. From childhood, the native feels different from their peers, driven by an irrepressible urge to break free of routine and convention, even if they cannot yet articulate why. This placement shapes not just their preferences and habits, but their fundamental sense of purpose, their approach to problem-solving, and their lifelong path of self-reinvention.

The Nature of the Aspect

The angle at play here is a conjunction (☌) between ♅ Uranus and the Ascendant, the cusp of the 1st house, with an orb of up to 8° for planet-to-angle aspects per classical guidelines. A conjunction denotes full fusion and interpenetration of the two functions involved: ♅ Uranus’s drive for sudden, radical change, originality, and rebellion against convention is woven directly into the native’s core sense of self. The mutable earth energy of ♍ Virgo filters this fusion, ensuring the Uranian urge for disruption is expressed through precise, incremental, practical means rather than chaotic, unplanned upheaval. A tight orb (less than 3°) creates a near-causal fusion, meaning the native’s identity is almost entirely defined by Uranian themes, while a wider orb (up to 8°) colors the personality with Uranian eccentricity without fully overriding the Ascendant’s core expression. As a slow, outer planet, ♅ Uranus’s influence manifests gradually over the course of a lifetime, shaping the native’s personality and life path from childhood onward, with its effects deepening as they age. An applying conjunction (where ♅ Uranus is moving toward the Ascendant at birth, if direct) creates an inner, unavoidable demand for change and self-reinvention that feels fated, while a separating conjunction (where ♅ Uranus is retrograde and moving away from the Ascendant) indicates the native has already mastered core Uranian lessons in past lives, and is now focused on refining that energy into practical, usable form. ♍ Virgo’s mutable nature also means the native’s need for change is constant and frequent, rather than occasional and dramatic: they require regular, small adjustments to their routine and environment to feel fulfilled, unlike a native with ♅ Uranus in a fixed sign, who may only need rare, large-scale changes to feel alive.

Symbolism and Mythology

♅ Uranus is the primordial Greek god of the sky, the father of ♄ Saturn, representing the untamed, unbound cosmic force of sudden insight, radical innovation, and the overthrow of stagnant, outdated order. ♍ Virgo is the sign of the harvest goddess, governing meticulous care, practical service, analysis of detail, and the refinement of raw material into something useful and functional. The archetypal image of their meeting is that of a bolt of precise, calibrated lightning striking a ripe wheat field: it does not destroy the crop, but separates the nourishing grain from the useless chaff in an instant, revealing a more efficient, innovative harvesting method that no one had previously considered. In classical tradition, ♅ Uranus is also considered the higher octave of ☿ Mercury, making its placement in ♍ Virgo—☿ Mercury’s domicile—especially potent, amplifying Mercurial gifts of intellect, communication, and technical skill with Uranian flashes of original insight. The pairing also echoes the myth of Prometheus, the Titan who stole fire from the gods to give to humanity, a story closely associated with ♅ Uranus’s energy of progressive, rebellious innovation. ♍ Virgo’s energy of careful, meticulous service is reflected in Prometheus’s careful planning to steal the fire without getting caught, and his dedication to using the gift to improve human life rather than for personal gain. Together, the two energies represent the kind of innovation that is both radical and responsible: change that is not just exciting and new, but also practical, beneficial, and carefully implemented to avoid harm.

The Principles of the Planets in the Chart

♅ Uranus in the Chart

♅ Uranus is the higher outer planet, classified as masculine in classical tradition, oriented toward external, active expression. It rules sudden, unexpected change, radical innovation, rebellion against convention, connection to collective progressive ideals, and eccentric, unorthodox thinking. Its function is to disrupt stagnant structures, break free of restrictive routines, and push both the individual and society toward new, more evolved ways of being. When placed in the 1st house, this function is fused directly with the core self: the native does not experience Uranian change as a series of external events, but as an intrinsic, unavoidable part of their identity. They see themselves as an outsider, an innovator, someone who does not fit into conventional social boxes, and their life path is marked by repeated cycles of reinvention as they shed outdated versions of themselves to align with their evolving original nature.

The 1st House in the Chart

The 1st house is the angular house of personal identity, physical appearance, first impressions, personal agency, and the mask we present to the world. It is the foundation of the natal chart, shaping how a person experiences their own existence and interacts with their immediate environment. When ♅ Uranus occupies this house, the native’s entire sense of self is colored by Uranian themes: they crave freedom above all else, hate being pigeonholed or labeled, and feel an irrepressible urge to stand out from the crowd. Their physical presence often feels electric, unpredictable, and distinctive, with a unique style or mannerism that sets them apart from others immediately upon meeting. The 1st house also governs physical health and vitality, so ♅ Uranus placed here can give the native a unique, energetic physical presence, but also a susceptibility to sudden, unexpected health issues, especially related to the nervous system, which ♅ Uranus rules. The native may have a sudden, unexpected talent for healing or understanding the body’s systems, as ♅ Uranus’s higher vibration amplifies ♍ Virgo’s natural link to health and service.

♍ Virgo as the Sign Filter

♍ Virgo is the mutable earth sign ruled by ☿ Mercury, governing analytical thinking, attention to detail, practical problem-solving, service to others, daily routine, and physical health. As a filter for the ♅ Uranus-Ascendant conjunction, ♍ Virgo ensures the Uranian drive for disruption is not expressed through chaotic, destructive rebellion, but through meticulous, incremental, practical innovation. The native does not tear down systems for the sake of chaos; they identify tiny, overlooked flaws in existing systems and devise precise, actionable fixes that improve efficiency and functionality for everyone. ♍ Virgo’s service orientation also directs the native’s Uranian originality toward helping others, rather than pursuing novelty for its own sake. Classical sources note that ☿ Mercury in ♍ Virgo (its domicile) gives a philosophical, analytical mind, love of detail, and talent for scientific research, and this energy is amplified when combined with ♅ Uranus’s influence, giving the native a natural talent for technical invention, rationalization, and original scientific insight.

Expression in Sign and House

Expression in the 1st House

The 1st house placement makes ♅ Uranus’s influence deeply personal and visible to others. The native often has a distinctive, unconventional physical appearance: they may have a unique facial feature, an unusual sense of style that mixes unexpected elements, or a physical energy that feels jittery, electric, and unpredictable. They are prone to sudden, unplanned changes to their appearance—cutting their hair in a radical new style, getting a tattoo or piercing on a whim, or overhauling their wardrobe overnight—without warning, as a way of aligning their outer self with their ever-evolving inner identity. First impressions of the native are often of someone who is sharp, observant, a little aloof, and unmistakably original, even if they are trying to blend in.

Expression in ♍ Virgo

♍ Virgo’s influence tempers ♅ Uranus’s tendency toward grand, sweeping change, focusing its energy on small, tangible, practical improvements. The native is obsessed with efficiency and hates wasting time or resources on inefficient, illogical processes. They are the person who notices that the office filing system is outdated, spends their lunch break redesigning it to be 50% more efficient, and presents the new system to their boss without being asked. They are also deeply curious about how things work, and their Uranian flashes of insight often come after hours of meticulous Virgoan analysis of a problem: they will obsess over a tiny flaw in a product or system, and suddenly have a eureka moment that leads to a revolutionary new solution. Their originality is not abstract or theoretical; it is grounded in real-world, usable applications that make life easier for themselves and others. The native may also have a unique, unconventional approach to daily tasks and routines: they may invent a new method for doing laundry that cuts down on time by 30%, or redesign their workspace to be more ergonomic in a way no one else has thought of, not because they are obsessed with cleanliness or order, but because they hate wasting time and energy on inefficient processes. Their ♍ Virgo side makes them deeply curious about how things work, so they will often take apart household appliances just to see how they function, and then reassemble them in a modified, more efficient form. This is not destructive behavior for them; it is a form of play and problem-solving that satisfies both their Uranian curiosity and their Virgoan desire for improvement.

Combined Influence Across Placements

The fusion of 1st house identity, ♅ Uranus’s innovation, and ♍ Virgo’s practicality creates a life path centered on being a "practical revolutionary"—someone who uses their unique, original intellect to fix broken, inefficient systems in their immediate environment. The native is not interested in grand, abstract political revolutions; they are interested in fixing the pothole on their street, redesigning the local library’s checkout system to reduce wait times, or inventing a new type of reusable grocery bag that is more durable than anything on the market. Their identity is tied to their ability to solve real, tangible problems in original, unexpected ways, and they feel most fulfilled when they are using their skills to make the world a little more functional, a little more fair, and a little more efficient for everyone. The native may also have a deep, intuitive understanding of collective trends and future needs, as ♅ Uranus is the ruler of the collective unconscious. Their Virgoan analytical side allows them to turn these vague, intuitive insights into concrete, practical plans that can be implemented to benefit society as a whole. They are often ahead of their time, seeing problems and solutions that no one else has noticed yet, and they may feel frustrated and isolated in their early years, until they find a community of like-minded innovators who share their vision.

Differences Between the Male and Female Chart

The Male Chart

Per classical planetary gender classifications, ♅ Uranus is a masculine planet, oriented toward external, active expression, so its influence is more outwardly visible in the male native’s life:
1. The male native is more likely to openly embrace and display his rebellious, innovative nature, often pursuing a career in engineering, technology, scientific research, or process optimization that allows him to act on his original ideas without constraint. He may be seen as an eccentric, forward-thinking leader in his field, unafraid to challenge conventional wisdom and push for radical improvements.
2. He may be more prone to taking risks with his health and daily routine, as his Uranian urge for change can lead him to experiment with unproven diets, exercise regimens, or work habits that his Virgoan analytical mind convinces him are logical, but which may have unexpected negative side effects if not carefully tested.
3. In relationships, he may struggle with traditional expectations of partnership, as his need for independence and novelty can make him seem unreliable or emotionally detached. He will show his care through practical, innovative acts of service—such as inventing a new system for managing household chores or building a custom tool to fix a problem his partner has been struggling with—rather than traditional romantic gestures, which he may see as inefficient or pointless. Societal expectations of masculinity may also encourage him to prioritize public achievement over private self-care, so he may need to consciously make time for quiet, detail-oriented work and rest to avoid burnout.

The Female Chart

In the female chart, ♅ Uranus’s masculine energy is often filtered through societal expectations of femininity, leading to a more internalized or subtle expression of its themes:
1. The female native is more likely to express her originality through behind-the-scenes, uncredited innovation rather than overt public rebellion. She may be the person in the office who quietly redesigns the team’s project management system to cut down on wasted time, or invents a new method for caring for her family’s health that no one else has thought of, without seeking praise or recognition for her work.
2. She may face greater social pressure to conform to traditional expectations of order, routine, and domesticity (themes associated with ♍ Virgo) which can clash with her Uranian need for novelty and change, leading to chronic internal conflict between her desire to be reliable and responsible, and her urge to break free of restrictive routines and expectations. She may also feel pressure to prioritize others’ needs over her own desire for innovation, leading to resentment and burnout if she does not set clear boundaries.
3. Her health may be more sensitive to stress from unexpected changes, as ♍ Virgo governs the nervous system, digestive tract, and immune system. Sudden disruptions to her routine can manifest as anxiety, digestive issues, or migraines, which she will then analyze obsessively to find a practical, innovative solution, combining her Virgoan self-scrutiny with Uranian problem-solving.

Psychological Portrait

Character

The native is sharp, observant, original, and deeply pragmatic, with a quick, analytical mind that can spot patterns and inefficiencies that 99% of people miss. They are fiercely independent, hate being told what to do, and cannot stand boring, repetitive routine—but they also crave order and structure, so they create their own unique, personalized systems that allow for flexibility within a stable framework. They are not chaotic rebels; they are precise, thoughtful reformers who only disrupt systems that are broken, inefficient, or illogical. They have a dry, witty sense of humor, and often use humor to point out the absurdity of conventional rules and expectations that make no logical sense.

Motivation

The native is driven by an irrepressible desire to make the world (and themselves) more efficient, more functional, and more fair. They get a deep sense of satisfaction from solving real, tangible problems, and their originality is always directed toward practical, usable outcomes rather than abstract, theoretical ideas. They want to use their unique insights to help others, and they feel most alive when they are inventing new, better ways of doing things that make life easier for the people around them. They are also motivated by a deep desire for personal freedom, and they will reject any path, job, or relationship that restricts their ability to think for themselves and act on their original ideas.

Fears

Their deepest, most primal fear is being trapped in a boring, unoriginal life, being just another cog in a rigid, inefficient machine, or being forced to conform to rules that make no logical sense. They also fear being seen as incompetent, illogical, or unoriginal, as their entire identity is tied to their sharp, precise intellect and their ability to produce innovative, practical solutions. They are terrified of being ordinary, of blending in with the crowd, of having no unique contribution to make to the world. They also fear being controlled or restricted by other people, and will go to great lengths to avoid situations where they feel their freedom is being threatened.

Self-Esteem

Their self-esteem is directly tied to their ability to produce original, useful work. When they are able to invent a new solution to a problem, fix a broken system, or help someone with a clever, unexpected idea, they feel confident, capable, and worthy. When they are stuck in a boring, repetitive routine, or their ideas are dismissed as weird, impractical, or stupid, they feel worthless, frustrated, and disconnected from their sense of self. They need regular opportunities to exercise their originality and problem-solving skills to feel good about themselves, and they thrive in environments where their unique ideas are valued and encouraged.

Style of Thinking

Their thinking process is a unique fusion of ♅ Uranus’s sudden, intuitive flashes of insight and ♍ Virgo’s methodical, step-by-step analysis. They may have a sudden "aha" moment out of nowhere (Uranus), and then spend hours or days testing the idea, working out the kinks, gathering data, and refining it into a practical, actionable plan (Virgo). They are not dreamers who leave ideas unrealized; they are doers who turn wild, original concepts into tangible, working solutions that have real-world impact. They are deeply curious, always asking "why?" and "what if?" and refusing to accept "that's just how it's always been done" as a valid answer. They are also deeply skeptical of claims that are not backed up by evidence, and will spend hours researching a new idea to verify its validity before accepting it as true.

Attachment

The native forms attachments slowly and cautiously, preferring to observe people and systems thoroughly before committing. They are deeply loyal to people who respect their independence, their need for novelty, and their original way of thinking, but they will cut ties quickly and decisively with anyone who tries to control them, force them to conform, or dismiss their ideas as foolish. They attach more to ideas, projects, and causes than to people, often throwing themselves into their work with intense, almost obsessive focus, and prioritizing their projects over social obligations or traditional relationship milestones. They may have a small, close-knit group of friends who share their love of innovation and problem-solving, rather than a large, wide social circle.

Spheres of Life

Career

This placement excels in careers that combine innovation with practical, analytical, detail-oriented work. The native is a natural fit for fields like engineering, software development, data analysis, scientific research, quality control, process optimization, technical writing, user experience design, or alternative health. They may also be drawn to unconventional fields like parapsychology, astrology, or technical invention, where they can use their original insights to explore new, uncharted territory. They hate rigid, bureaucratic workplaces that punish nonconformity and prioritize routine over innovation, so they thrive in environments that encourage creativity and problem-solving, or they may choose to work for themselves, where they can set their own rules and pursue their own ideas without interference. Their career path is often marked by sudden, unexpected changes: sudden promotions, sudden career pivots into entirely new fields, or sudden layoffs that force them to reinvent their professional identity entirely, which they embrace as an opportunity to try something new and original. They may also excel in fields like quality assurance, where their attention to detail and ability to spot tiny flaws is highly valued.

Relationships

In relationships, the native needs a partner who respects their need for independence, novelty, and intellectual freedom. They cannot stand partners who are clingy, conventional, or who try to force them into a traditional mold of what a partner "should" be. They show love and care through practical, innovative acts of service: they might invent a new, efficient system for splitting household chores, build a custom piece of furniture to solve a storage problem their partner has been complaining about, or come up with a unique, thoughtful date idea that no one else would think of. They struggle with traditional romantic gestures like flowers, chocolates, or fancy dinners, which they see as inefficient, impersonal, and pointless, so their partners may sometimes feel like they are not romantic enough, but their care is shown through action, not empty gestures. They may have a pattern of sudden, unexpected relationship changes—sudden breakups with partners who try to control them, or sudden decisions to move in with a partner or get married on a whim, as long as it makes logical sense to them and aligns with their desire for novelty. They may also be drawn to non-traditional relationship structures, such as open relationships or polyamory, which allow for the freedom and novelty they crave, while still providing the stability and connection they need.

Finances

The native is practical and responsible with money, but their Uranian side can lead to sudden, unexpected financial gains or losses. They are drawn to unconventional, innovative investment opportunities—such as investing in a new tech startup, buying a unique piece of property that no one else wants, or starting a side hustle based on an original idea—that can pay off big if they succeed, but can also lead to losses if the idea does not work out. They hate steady, 9-to-5 jobs that pay a reliable salary but offer no room for innovation or growth, so they often have multiple streams of income, including a unique side hustle that eventually becomes their main source of income. They are willing to spend money on tools, technology, education, or experiences that help them innovate and improve their skills, but they refuse to waste money on status symbols, luxury goods, or unnecessary expenses that do not serve a practical purpose. They may also have a talent for making money through unexpected, unconventional means, such as selling a unique product they invented, or monetizing a niche skill that no one else offers.

Health (Psychosomatic Tendencies)

♍ Virgo governs the nervous system, digestive tract, and immune system, while ♅ Uranus brings sudden, unexpected disruptions, so the native is prone to sudden, unexplained health issues that come out of nowhere, often triggered by stress from unexpected changes to their routine or environment. They may also have a tendency to overanalyze their health, obsessing over tiny symptoms and jumping to catastrophic conclusions about serious illnesses, which can create anxiety that manifests as physical symptoms like headaches, digestive issues, or fatigue. On the other hand, they are early adopters of new, innovative health practices: they may be the first person in their circle to try a new fitness tech, a new diet, or a new mental health practice, and they are often able to find creative, unconventional solutions to chronic health issues that traditional medicine cannot fix. They may also have a sudden, unexpected talent for understanding how the body works, and may be drawn to fields like physical therapy, nutrition, or holistic healing. They are also prone to sudden, unexpected injuries, especially related to electrical shocks, accidents with technology, or sudden falls, as ♅ Uranus rules sudden, unexpected events.

Challenges and Gifts

Shadow Sides

1. Overcritical, dismissive behavior: The combination of ♍ Virgo’s natural critical eye and ♅ Uranus’s rejection of all things conventional can make the native hypercritical of themselves and others, dismissing any idea, person, or system that does not meet their exacting, original standards. They may become so focused on tiny, irrelevant flaws that they cannot see the big picture, or alienate friends, family, and colleagues with their harsh, dismissive criticism, which they often frame as "just being honest." This critical nature can make them excellent at quality control and troubleshooting, but it can also make them impossible to work for if they do not learn to temper their criticism with empathy and encouragement.
2. Erratic, self-sabotaging impulsivity: When the native feels trapped by routine, convention, or restriction, their Uranian urge for change can lead them to make sudden, impulsive decisions that ruin their hard-earned progress: they may quit a stable, well-paying job on a whim, end a loving relationship because they feel bored, or abandon a long-term project they have been working on for months because they want to try something new, without thinking through the long-term consequences of their actions. This pattern is often rooted in a deep fear of being trapped or controlled, so they may sabotage their own success to avoid being tied down to a routine or expectation that they feel will restrict their freedom.
3. Emotional detachment and avoidance: The combination of ♍ Virgo’s tendency to overanalyze emotions and ♅ Uranus’s aversion to vulnerability can make the native seem cold, aloof, and unfeeling to others. They may struggle to offer emotional support to loved ones, preferring to solve problems logically rather than validating feelings, which can make their partners and friends feel unheard, unappreciated, and emotionally disconnected from them. This detachment is often a defense mechanism, as they have been hurt in the past when they were vulnerable, so they keep their emotions guarded to avoid being hurt again.
4. Intellectual arrogance and close-mindedness: Their unique, original insights and sharp analytical mind can make them arrogant, convinced that their way of thinking is the only correct one, and that anyone who disagrees with them is stupid, close-minded, or brainwashed by conventional wisdom. They may dismiss traditional knowledge, time-tested practices, or the advice of experts out of hand, leading them to make costly mistakes that their critical mind would have caught if they had been more open to outside perspectives. This arrogance often stems from a deep fear of being seen as stupid or unoriginal, so they overcompensate by dismissing any ideas that are not their own, to prove their superiority.
5. Restlessness and inability to commit: Their constant need for novelty and change can make it hard for them to stick with long-term projects, relationships, or goals, as they get bored easily and want to move on to something new and exciting as soon as the initial thrill wears off. This can lead to a pattern of starting many projects but finishing none, or having a string of short-term relationships that end as soon as the novelty fades, leaving them feeling unfulfilled and disconnected from long-term goals. This restlessness can be channeled positively by allowing them to explore new ideas and opportunities, but it can also lead to a lack of follow-through that prevents them from achieving long-term success.

Bright Sides

1. Exceptional, original problem-solving ability: The fusion of ♅ Uranus’s sudden flashes of insight and ♍ Virgo’s meticulous analytical precision makes the native a master problem-solver, capable of spotting inefficiencies, flaws, and gaps in systems that no one else notices. They can turn wild, unworkable ideas into practical, actionable solutions that have real, tangible impact, and they are often the first person people turn to when they have a problem that no one else can fix. Their ability to solve problems is not limited to technical or practical issues; they are also good at solving interpersonal problems, coming up with creative, original solutions to conflicts that no one else has thought of.
2. Practical, world-changing innovation: Unlike many innovators who have great ideas but no way to implement them, the native’s ♍ Virgo filter ensures their ideas are grounded, detailed, and usable. They may invent a new type of low-cost water filter for remote communities, redesign a local school’s curriculum to be more engaging and effective, or create a new software tool that cuts down on wasted time for small businesses, making a real, measurable difference in the lives of people around them. Their innovations often have a ripple effect, inspiring others to think differently and come up with their own original solutions, creating a cycle of progress that extends far beyond their own work.
3. Extreme adaptability and resilience: Their ♅ Uranian nature makes them extremely adaptable to unexpected change, and their ♍ Virgoan analytical mind helps them make sense of disruptions rather than panicking. When life throws them a curveball—a sudden job loss, an unexpected move, a family crisis—they do not get stuck in grief or denial; they analyze the situation, come up with a plan, and adapt quickly, often emerging from the crisis stronger and more innovative than before. They are able to reinvent themselves repeatedly over the course of their life, never getting stuck in a rut, always finding new ways to grow and contribute. This adaptability makes them extremely resilient in times of crisis, such as economic downturns, natural disasters, or global pandemics, as they are able to pivot quickly and find new ways to thrive when others are struggling.
4. Commitment to collective progress and service: Their drive for change is not selfish; it is tied to ♍ Virgo’s service orientation, so they want to use their innovations to help others and improve the world for everyone, not just for personal gain. They are passionate about fixing broken systems, helping marginalized communities, and making the world more efficient and fair, and they often devote their time and skills to pro bono work or community projects that align with their values. They are often drawn to social justice and progressive causes, using their innovative skills to develop new solutions to systemic problems like poverty, inequality, and climate change.
5. Inspiring others to embrace change: Their originality, their willingness to challenge convention, and their ability to turn wild ideas into practical solutions make them a natural catalyst for progress in their communities. They inspire others to think differently, to reject outdated rules and systems that no longer serve them, and to embrace their own unique originality. They show others that change does not have to be scary or chaotic; it can be precise, practical, and beneficial for everyone. They are often seen as a leader or mentor by other innovative, non-conformist people, who look to them for guidance and inspiration as they navigate their own paths of originality and change.

Practical Recommendations

Conclusion

The path to integrating this powerful placement is a journey from the shadow of chaotic rebellion, overcriticality, and emotional detachment to the highest expression of the practical revolutionary. The native learns to harness their sudden flashes of Uranian insight not as a reason to disrupt systems for the sake of change, but as a tool to identify and fix the tiny, overlooked flaws that hold people and systems back from reaching their full potential. They learn that their nonconformity is not a flaw to be hidden, but a gift to be shared, and that their unique way of seeing the world—equal parts original, analytical, and service-oriented—is exactly what the world needs to solve its most pressing, intractable problems. Over time, they move from being a restless, critical outsider to a trusted, innovative leader who builds better, more efficient, more fair systems for everyone, leaving a lasting, positive impact on the world that reflects their unique, one-of-a-kind identity.

This article was prepared by the [Astrobot](https://astrobot.chat) editorial team — your personal astrological assistant. The material is based on classical and modern astrological sources.