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Andy Weir
Celebrity Chart

Andy Weir

Born 16 Jun 1972 · time unknown · Davis · engine astronomy-engine-v1
Sun
♊ Gemini
Moon
♍ Virgo
Ascendant
Unknown · no birth time
Chart Ruler
Mercury

A reading of the patterns in how Andy Weir operates, computed from the placements above. Every line traces back to a chart position. Not a prediction. Same birth data, same report, every time.

01 · Signature

A mind that solves things for fun

Andy Weir's chart is loaded in Gemini: the Sun at 25 degrees, Venus at 27 and retrograde, and Saturn earlier in the same sign. Gemini is the sign of curiosity, explanation, and the pleasure of taking an idea apart to see how it works, and with three bodies there the whole personality organizes around information. The Sun this late in Gemini describes someone who has moved past scattered interest into something more directed, a person who collects knowledge and then wants to do something useful with it rather than just holding it.

The Moon at 4 degrees Virgo grounds all that mental motion in method. Virgo Moons are comforted by accuracy, by checking, by the satisfaction of a thing that has been verified rather than assumed, and this one sits in an exact trine to Jupiter in Capricorn, which quietly turns diligence into good fortune over time. The combination describes a person whose emotional stability comes from having done the homework, and whose confidence is genuinely proportional to how much of it he has done.

One plain note before the rest. Andy Weir's birth time is not on record, so this reading works only from the planets by sign and their aspects to each other. There is no rising sign, no houses, and no career angle here, since none of those can be calculated without a time. Everything below comes from the planetary pattern, which holds across the whole day.

Sun · 25°42′ GeminiMoon · 4°15′ VirgoVenus · 27°02′ Gemini · retrogradeJupiter · 4°28′ Capricorn · retrograde
02 · How Others See You

Quick, funny, and harder to read than it seems

There is no rising sign in this chart without a birth time, so the outward impression reads from the Sun and its neighbours. A Gemini Sun tends to arrive talking. It is quick, light, informal, and disarmingly willing to explain, and it usually makes an impression of intelligence without formality. People often describe Gemini placements as young in manner regardless of age, which is mostly a function of curiosity outlasting self importance.

Venus retrograde sitting right next to that Sun adds humour as the primary social tool. Venus in Gemini charms through wit rather than warmth, keeps the exchange enjoyable, and prefers banter to intensity. Retrograde turns that slightly inward: the charm is real and the person behind it is more reserved than the surface suggests, and there is often a long private history of not being sure whether being liked is the same as being known.

Saturn in Gemini is the third piece, and it explains why this presentation has more substance than the lightness implies. Saturn in this sign takes communication seriously, checks its claims, and dislikes speaking beyond what it actually knows. That produces someone who is casual in tone and unusually careful in content, which is a combination people tend to trust once they notice it.

The gap between manner and interior comes from Mercury and Mars in Cancer, which keep the actual feelings well out of the conversation. Andy Weir's pattern is likely to be a person who is easy to talk to for hours and difficult to get personal information from, because the humour works as both a genuine offering and a very effective door. The concrete thing that helps is answering one direct personal question a day without deflecting into a joke, since the joke is almost always available and almost always taken.

Sun · 25°42′ GeminiVenus · 27°02′ Gemini · retrogradeSaturn · 12°05′ GeminiMercury · 9°28′ Cancer
03 · Mind & Voice

Logic on the surface, memory underneath

Mercury at 9 degrees Cancer is the surprise in a chart this analytical. Mercury in Cancer thinks through impression, memory, and association rather than pure sequence, and it retains what it felt about a thing along with the thing itself. That produces a mind that is far more intuitive than the Gemini exterior suggests, and a person whose best ideas often arrive as a hunch that then has to be reverse engineered into an argument.

The Gemini planets supply the translation layer. Sun and Saturn in Gemini describe someone who can take a complicated thing and explain it clearly to a person who does not share the background, and who genuinely enjoys doing so. Saturn there insists the explanation be correct, so the lightness of the delivery sits on top of real checking rather than replacing it.

Uranus at 14 degrees Libra trines Saturn in Gemini closely, and that is the aspect that makes the thinking inventive rather than merely accurate. Saturn trine Uranus describes a mind that can hold structure and novelty at once, that likes constraints because constraints are what make a clever solution possible, and that tends to arrive at answers which are both rigorous and unconventional.

The complication is Neptune in Sagittarius squaring the Virgo Moon, which periodically floods the precision with vagueness and doubt. The practical pattern is that this mind works best with a defined problem and worst with an open ended one. The concrete thing that helps is converting any large question into a specific, checkable version of itself before starting, since this configuration is exceptional at solving and unusually uncomfortable while wandering.

Mercury · 9°28′ CancerSaturn · 12°05′ GeminiUranus · 14°12′ Libra · retrogradeNeptune · 3°17′ Sagittarius · retrograde
04 · Inner World

Private, domestic, and quietly self correcting

The Moon at 4 degrees Virgo describes an emotional life that copes by fixing things. Virgo Moons settle when the environment is in order, when the details are handled, and when there is something concrete to do about the problem, and they become anxious when a situation offers no useful action. Comfort here is practical rather than expressive, and it often takes the form of a routine that nobody else would recognize as emotional care.

Mercury and Mars in Cancer add the homebody underneath. Cancer placements attach to familiar places, keep long memories of who was kind and who was not, and prefer a small known world to a large unknown one. That combination describes someone whose sense of safety is genuinely located at home rather than in company, and who recharges by being somewhere private with a problem to work on.

Neptune in Sagittarius squares the Virgo Moon, which is the source of the quieter difficulty in this part of the chart. That aspect tends to bring a low grade sense that something is missing, an idealism that the practical Moon cannot satisfy, and occasional stretches of feeling unmoored for no locatable reason. Virgo's instinct is to look for the error, and with Neptune there is usually no error to find.

The steadying factor is Jupiter in Capricorn in exact trine to that Moon. It describes a real capacity for contentment with modest, well built circumstances. The concrete thing that helps is naming the mood as weather rather than as a fault, since this chart reliably treats an unexplained low as a problem in the system and then goes looking for something to repair.

Moon · 4°15′ VirgoMars · 22°28′ CancerNeptune · 3°17′ Sagittarius · retrogradeJupiter · 4°28′ Capricorn · retrograde
05 · Love & Connection

Loyal, funny, and slow to say the serious thing

Venus at 27 degrees Gemini and retrograde is the central placement for how Andy Weir connects. Venus in Gemini bonds through conversation: the running joke, the shared reference, the pleasure of a mind that keeps up. It wants a companion more than an audience, and it is more comfortable with affection expressed as playfulness than as declaration.

The retrograde adds a real hesitation underneath the ease. Venus retrograde often describes someone who has had to work out their own definition of love rather than adopting the standard one, who reconsiders relationships internally at length, and who can be slower to commit than their sociability suggests. The affection is not in doubt. The expression of it goes through several drafts.

Mars in Cancer is where the depth lives. Mars in this sign pursues indirectly, protects fiercely, and attaches with far more intensity than it shows, and it takes rejection personally for a long time. That combination with a Gemini Venus produces a person who is light at the surface of a relationship and deeply invested a layer down, which can confuse a partner who is only reading the surface.

The Virgo Moon sets the practical terms: love proved by reliability, by noticing, by the things handled without being asked. The concrete thing that helps is saying the plain sentence occasionally, without a joke attached, since this chart is extremely good at demonstrating care and reliably nervous about stating it.

Venus · 27°02′ Gemini · retrogradeMars · 22°28′ CancerMoon · 4°15′ VirgoSun · 25°42′ Gemini
06 · Sex & Desire

Emotional first, and more intense than advertised

Mars at 22 degrees Cancer describes desire that runs through feeling rather than through conquest. Cancer Mars needs emotional safety before physical openness, moves in a roundabout way rather than declaring intent, and is far more responsive to being wanted than to pursuing. It is a placement with real tenacity underneath the indirectness, since Cancer does not give up on what it has attached to.

Venus retrograde in Gemini keeps the register verbal and playful. Desire in this chart is switched on by the mind, by talk, by humour and the specific pleasure of being understood quickly, and it tends to cool when the exchange becomes serious or heavy. The retrograde brings a self conscious streak, a habit of observing rather than being fully inside the moment until trust is genuinely established.

Pluto at 29 degrees Virgo squares both the Sun and Venus, and that is the undercurrent. It describes intensity kept under strict management, a wariness about vulnerability, and a tendency to notice everything about the dynamic while it is happening. That aspect can go with a private, exacting relationship to desire that does not match the easy public manner at all.

The pattern worth naming is the distance between how casual this reads and how much is actually at stake. What helps is stating a want directly in words rather than arranging circumstances until it becomes obvious, since Cancer Mars is expert at implying and consistently disappointed when the implication is missed.

Mars · 22°28′ CancerVenus · 27°02′ Gemini · retrogradePluto · 29°20′ VirgoSun · 25°42′ Gemini
07 · Friendship & Community

The group is built around the shared obsession

Uranus at 14 degrees Libra and retrograde describes someone who belongs through shared interest rather than shared background. Uranus in Libra wants relationships on unconventional terms, resists the social scripts about how friendship is supposed to look, and gravitates toward people who are also slightly outside the standard arrangement. The retrograde keeps that independence internal rather than performed.

Saturn in Gemini defines what he brings to a group, which is usually competence and information. This placement takes its commitments to people seriously without being demonstrative about it, and it tends to be the reliable one in a circle rather than the social organizer. Saturn in Gemini also means fewer friendships held longer, because the placement does not distribute itself widely.

The Gemini Sun and Venus make him genuinely good company inside a community built around a subject. Andy Weir's pattern is the group that forms around a project, a hobby, or a body of knowledge, where the bonding happens through argument and shared enthusiasm and nobody has to discuss their feelings for it to be real. Communities organized around emotional intimacy are a much harder fit.

The risk is that the friendship depends on the shared activity and does not survive without it. The concrete thing that helps is maintaining contact with two or three people during the stretches when there is no project in common, since this configuration loses friendships by drift rather than by conflict.

Uranus · 14°12′ Libra · retrogradeSaturn · 12°05′ GeminiSun · 25°42′ GeminiVenus · 27°02′ Gemini · retrograde
08 · Family & Roots

A practical household and a long attachment to it

With no birth time available, family reads here through the Moon and Saturn rather than through any angle. The Moon in Virgo commonly describes an upbringing where usefulness was the accepted way of showing care: things fixed, homework checked, competence valued over demonstration. Children with this Moon often learn that being helpful is a reliable route to approval, and they keep the habit permanently.

Mercury and Mars both in Cancer deepen the attachment to where he came from. Cancer placements hold onto the family story, the childhood place, and the particular texture of the early home with unusual persistence, and they tend to build adult life as a version of that rather than a break from it. It also describes someone who defends family privately and says very little about it publicly.

Saturn in Gemini points at the specific early lesson, which is usually about speech and knowledge. This placement often marks a household where being right mattered, where explanations were expected to hold up, or where the child was quieter than he looked and did his working out internally. It builds genuine intellectual discipline and a lasting caution about saying something unverified.

Jupiter in Capricorn trine the Moon suggests the inheritance included a workable model of patience and modest ambition, which has probably served him well. The concrete thing that helps is asking the older generation direct questions while they are available, since this configuration assumes the family record is stable and tends to notice only afterwards that nobody wrote it down.

Moon · 4°15′ VirgoMercury · 9°28′ CancerSaturn · 12°05′ GeminiJupiter · 4°28′ Capricorn · retrograde
09 · Drive & Ambition

Persistence that does not look like ambition

Mars in Cancer is not a competitive placement in the usual sense. It does not enjoy direct confrontation, rarely wants the fight, and pursues by sideways persistence rather than by force. What it has instead is stamina about things it cares about: Cancer Mars will keep working at something for years after a more assertive Mars has moved on, because the attachment does the work that aggression does elsewhere.

The Virgo Moon supplies the daily discipline, and it is the most reliable engine in the chart. Virgo Moons like a routine, take real satisfaction in incremental correctness, and are content doing the unglamorous middle of a long task. Combined with Saturn in Gemini, which wants the work to be accurate and well explained, this describes someone who can sustain a technical project alone for a very long time without external motivation.

The exact trine from Jupiter in Capricorn to that Moon is the quiet advantage. It describes patience that pays, a sense of proportion about timelines, and a tendency for opportunity to arrive through steady competence rather than through pushing. Jupiter retrograde suggests the growth is internal first and visible later.

The limitation is self promotion. This chart is much better at doing the work than at telling anyone it exists, and Mars in Cancer will retreat from a situation that requires open self assertion. The concrete thing that helps is letting someone else do the advocating, since delegating that part costs this configuration almost nothing and fixes the main gap.

Mars · 22°28′ CancerMoon · 4°15′ VirgoJupiter · 4°28′ Capricorn · retrogradeSaturn · 12°05′ Gemini
10 · Career & Calling

Explaining hard things to people who are not experts

The Midheaven cannot be calculated without a birth time, so the public direction reads here from the Sun, Saturn, and Jupiter. The Sun in late Gemini points at a vocation built on communication: work that involves taking information from one place and making it usable in another, whether that is writing, teaching, building, or explaining. Gemini placements are rarely content in a role with no transmission in it.

Saturn in the same sign describes what the working life is tested on and what it eventually becomes authoritative about. Saturn in Gemini rewards accuracy, research, and the willingness to say only what can be defended, and it usually delivers its recognition later rather than early. Careers under this placement tend to be built on a reputation for getting the details right rather than on a dramatic arrival.

Jupiter in Capricorn, retrograde, describes how the expansion actually happens: slowly, structurally, and through work that compounds. This is not a placement of lucky breaks. It is a placement where the reward arrives after the competence is fully built, and where the career that works is the one nobody else had the patience to complete.

Uranus in Libra trine Saturn adds the unconventional route. Andy Weir's pattern suggests a path that does not follow the standard sequence and arrives at the same destination sideways. The practical thing that supports it is finishing and publishing the work rather than perfecting it privately, since this configuration produces far more than it ever shows.

Sun · 25°42′ GeminiSaturn · 12°05′ GeminiJupiter · 4°28′ Capricorn · retrogradeUranus · 14°12′ Libra · retrograde
11 · Money & Values

Modest wants, careful reserves

Jupiter in Capricorn is the most telling placement here. Jupiter is the planet of expansion and Capricorn is the sign that expands slowly and only on a foundation, so this describes a person whose relationship to money is conservative by instinct and whose gains come from accumulation rather than from risk. Retrograde adds an internal quality: security is measured against his own standard rather than against what other people have.

Venus in Gemini keeps material taste light. This placement spends on curiosity rather than on status, likes tools and books and things that do something, and is largely indifferent to luxury as a signal. It is also somewhat scattered with small expenditures, since Gemini finds many small interesting things and rarely counts them collectively.

The Virgo Moon needs the accounting to be in order to feel calm, and will feel disproportionate anxiety about a situation it cannot see clearly. Virgo Moons usually keep good records, dislike owing anyone, and treat a modest reserve as a psychological necessity rather than a financial strategy.

Mars in Cancer adds a protective streak about providing for the people close to him, which tends to be the one area where the caution loosens. The concrete thing that helps is a fixed review date for the finances rather than a running background worry, since with this combination the anxiety keeps operating whether or not the numbers require it.

Jupiter · 4°28′ Capricorn · retrogradeVenus · 27°02′ Gemini · retrogradeMoon · 4°15′ VirgoMars · 22°28′ Cancer
12 · Health & Vitality

Pace, rest, and the rhythm this chart tends toward

This section reads energy and rhythm as tendencies in the chart, not as medical fact, and it makes no claim about anyone's body. That said, the Gemini emphasis describes an energy pattern that is mental before it is physical. Gemini placements commonly run on stimulation, keep several inputs going at once, and find it difficult to power down, so the most common strain here is nervous rather than exertional.

Mars in Cancer suggests energy that fluctuates with mood and with the emotional climate rather than staying level. Water sign Mars tends to be strong when engaged and noticeably flat when not, and it usually recovers by withdrawing to a familiar place rather than by doing something active.

The Virgo Moon is the part of the chart that pays attention to routine, and it often goes with an interest in the mechanics of the day: sleep, food, the order of tasks. Virgo placements notice small changes early and can spend more attention on ordinary fluctuation than is useful, which is its own low level drain.

Saturn in Gemini tends to carry pressure as mental tension held over long periods. What supports this pattern is a hard stop and a change of medium at the end of the working day. The concrete thing: something physical and non verbal in the evening, since this configuration will keep processing in words indefinitely if nothing interrupts it.

Sun · 25°42′ GeminiMars · 22°28′ CancerMoon · 4°15′ VirgoSaturn · 12°05′ Gemini
13 · Creativity & Self-Expression

Play that looks a lot like problem solving

The Sun and Venus together in Gemini describe creativity that runs on curiosity and voice. This combination makes things out of language, wit, and the pleasure of a clever construction, and it takes genuine joy in the mechanism of a thing working. Gemini creativity is playful in the literal sense: the process is the fun part, and the output is a by product of having enjoyed the puzzle.

Mercury in Cancer is what gives the work feeling. Without it this would be clever and cool, and with it the material carries memory, attachment, and an instinct for what will move someone. It tends to work through character and situation rather than through abstraction, even when the surface subject is technical.

Neptune in Sagittarius, square the Virgo Moon, supplies the imaginative reach and the restlessness with the merely accurate. This is the part of the chart that wants the big frame, the far place, the scenario that has never happened, and it pushes the Gemini cleverness toward something more expansive than a well made puzzle.

The productive tension is between Virgo's need to verify and Neptune's willingness to invent. Andy Weir's chart works best when both are running: the imagined premise held to a standard of internal consistency. The concrete thing that helps is finishing a draft before checking it, since with this Moon the verifying instinct will otherwise stop the invention on the first page.

Sun · 25°42′ GeminiVenus · 27°02′ Gemini · retrogradeMercury · 9°28′ CancerNeptune · 3°17′ Sagittarius · retrograde
14 · Beliefs & Meaning

Show the working, then decide what to believe

Neptune at 3 degrees Sagittarius and retrograde describes a relationship to meaning that is questing rather than settled. Sagittarius wants the largest available frame and Neptune dissolves the edges of whatever it touches, so this is a person drawn to the vast and the unresolved: scale, distance, the long view, whatever sits beyond ordinary experience. Retrograde keeps that search private rather than shared.

The Virgo Moon squaring Neptune is the honest complication. Virgo wants evidence and Neptune does not supply any, so belief in this chart is likely to be approached with the same rigour as everything else and to keep failing the test. That usually resolves into a stance of respectful uncertainty rather than either faith or dismissal, which is a genuinely stable place to land.

Saturn in Gemini reinforces the same instinct. This placement will not assert what it cannot demonstrate, and it is uncomfortable with confident claims that rest on nothing checkable. Meaning under Saturn in Gemini tends to be found in accuracy itself, in the satisfaction of understanding how something actually works rather than in a story about why it exists.

Jupiter in Capricorn completes the picture with a practical ethic: do the work, keep your word, build something that holds. The concrete thing that supports this configuration is spending time somewhere physically vast, since the Neptune longing in this chart is real and rarely gets fed by argument.

Neptune · 3°17′ Sagittarius · retrogradeMoon · 4°15′ VirgoSaturn · 12°05′ GeminiJupiter · 4°28′ Capricorn · retrograde
15 · Shadow & Growth

The self doubt that hides behind competence

Pluto at 29 degrees Virgo squares both the Sun and Venus in Gemini, and it is the hardest configuration in the chart. Pluto square the Sun describes a compulsive relationship with standards: an inability to let something be good enough, a private conviction that the visible competence is somehow provisional, and a habit of controlling the parts of a situation that can be controlled. Virgo sharpens all of that into criticism of the details.

The same square to Venus turns it toward self worth. This aspect often goes with a suspicion that being valued depends on being useful or impressive rather than on being known, and with a reluctance to let anyone see the work in progress. Venus retrograde compounds it by keeping the reassessment internal, where nothing can contradict it.

Neptune squaring the Virgo Moon is the second source of friction, and it operates as doubt without a subject. Virgo's response to an unexplained unease is to hunt for the flaw, and Neptune guarantees the hunt has no ending. That loop is exhausting precisely because the instinct behind it is normally so effective.

Growth here comes from letting things be seen unfinished. The concrete thing that helps is showing a draft or a partial version to one trusted person at a fixed point, before it is ready, since this configuration will otherwise keep the work private until it is perfect and quietly conclude it never was.

Pluto · 29°20′ VirgoSun · 25°42′ GeminiVenus · 27°02′ Gemini · retrogradeNeptune · 3°17′ Sagittarius · retrograde
16 · Life Direction

Slow build, wide reach

The public direction cannot be read precisely without a birth time, but the planetary pattern gives a clear enough trajectory. Jupiter in Capricorn marks where the growth happens: through structure, through patience, through work that accumulates value rather than spending it. This chart is built for the long compounding curve and does badly with anything that requires a fast return.

Saturn in Gemini names what is being mastered, which is the craft of saying things accurately and well. The task under this placement is to keep learning past the point of competence, to keep the claims honest, and to build the kind of authority that comes from having been reliably right rather than from having been loud. It tends to deliver its reward in the second half of life.

The Sun in Gemini sets the core purpose: to connect things, to translate between worlds, to take what is known in one place and make it usable somewhere else. That is a genuinely social purpose dressed up as a solitary one, which is worth knowing about, because the work only completes when it reaches someone.

The felt direction is outward from a private base. Nothing in Andy Weir's chart suggests a life spent in the open, and everything suggests output that travels much further than the person does. What supports it is shipping the work on a schedule rather than at a standard, since this configuration always has one more check available.

Jupiter · 4°28′ Capricorn · retrogradeSaturn · 12°05′ GeminiSun · 25°42′ GeminiMoon · 4°15′ Virgo
17 · Repeating Patterns

The loops that keep coming back

The first loop is check it one more time. The Virgo Moon wants the detail verified and Pluto in Virgo square the Sun keeps raising the bar, so finished work sits in a drawer getting slightly better and not getting out. It breaks by setting a date rather than a standard, because this combination will meet a deadline and will never arrive at a feeling of readiness.

The second loop is deflect with humour. The Gemini Sun and Venus can turn any personal question into an enjoyable exchange about something else, and the Cancer planets underneath are perfectly happy to let them. What loosens it is one relationship where jokes are ruled out for the first ten minutes, since this chart is honest when asked directly and almost never volunteers.

The third loop is the useful one. Andy Weir's chart alternates between Neptune in Sagittarius reaching for something vast and the Virgo Moon insisting it be checkable, and the periods that go well are the ones where both get their turn in order rather than at once. Imagine first, verify second, and the pattern that otherwise cancels itself out becomes the whole method.

Moon · 4°15′ VirgoSun · 25°42′ GeminiMars · 22°28′ CancerNeptune · 3°17′ Sagittarius · retrograde
Reference

Where this fits with someone else’s chart.

Sun signs are one layer. These are the signs Andy Weir’s Gemini Sun tends to move most easily with.

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Reference

The data behind every line.

BodySignDegHouse
SunGemini25°42′
MoonVirgo4°15′
MercuryCancer9°28′
VenusGemini27°02′
MarsCancer22°28′
JupiterCapricorn4°28′
SaturnGemini12°05′
UranusLibra14°12′
NeptuneSagittarius3°17′
PlutoVirgo29°20′

Computed for 16 Jun 1972 · time unknown · Davis (source X). Same inputs always produce this same table.

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