Astrology birth chart for December 18 1986 – Complete Zodiac Analysis

By astrologer Astrid. Published on August 20, 2025 09:30AM EDT

TL;DR

Your birth chart shows the unique mix of planetary factors that were at work when you were born on December 18 1986. This birth chart shows unique blend of planetary influences, important parts of your personality, relationships, career, and life path, giving you information about both your strengths and weaknesses. Find out here how the stars of December 18 1986 are still affecting your life now.

Astrology and Horoscope for those born on December 18 1986

Ever wondered what your birthday says about you? Explore our personalized natal charts and celebrity birth charts to discover how the stars aligned for those born December 18 1986. Through detailed star astrology forecasts and daily predictions based on birth horoscopes, embrace the wisdom of the cosmos and discover the character traits and destiny twists that make your life journey truly special.

You can also build your own birth chart or astrocartography map with our service.

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Sun in Sagittarius

For them, more than for anyone else, the Sun's return to the sign of Sagittarius signifies a fresh start. They will be able to concentrate, rejuvenate, and reconnect with the authentic self if they take full advantage of this opportunity. The hallmarks of the postmodern era are a renewed sense of vitality, confidence, and the desire to seize new opportunities. They might have greater drive, enthusiasm, and visibility to engage in activities they like. This influence brings out their innate desire to discover the truth, have fun, and learn new things. They are strongly encouraged to take ownership of their story and tell it to others during this time. The questions that concern your identity, direction, and personal development encourage you to reflect on who they are becoming and where they plan to go in life. If they can articulate their ideas, take initiative, or simply act in a way that is consistent with their identity, they might feel more confident. It is crucial to remember that their enthusiasm is infectious, but they must exercise caution to prevent going beyond what is considered appropriate behavior. They are more motivated than normal when the Sun is in their sign, but they run the risk of becoming impatient or overextending themself. They will be able to use their energy more effectively if they can strike a balance between freedom and concentration.

Moon in Cancer

Because the Moon is in Cancer and they are a Sagittarius, they have a unique mix of watery desire and exciting adventure. Sagittarius is a sign that is known for its strong sense of independence, optimism, and drive to find purpose and truth. These are the traits that make them unique. Their Cancer Moon rules their inner world, which is emotionally compassionate and sensitive. It needs a strong sense of safety and belonging to work properly. This combination has the potential to create a unique internal dynamic, and it may still do so. Their Sagittarius personality makes them want to be active, travel, and try new things. They also have a strong desire to enjoy new experiences. On the other hand, their Cancer Moon wants a peaceful routine and the emotional security that comes with returning home to a place can call their own. This is because their Cancer Moon is a sign that honors the Moon. If they have a strong desire to travel but always find themself back in a safe and familiar setting, they may feel like they are being pulled in two different directions. That being said, this combination also gives a lot of power. They really need the emotional depth that Cancer Moon brings to Sagittarius optimism. They are more than just a dreamer because they make experiences that are emotionally meaningful. They have the ability to be a teacher or mentor who is both sympathetic and motivating, and the fact that they have a unique mix of loyalty and philosophical views makes them a true friend.

Mercury in Sagittarius

Couple your free-spirited, optimistic Sagittarius sun with the open-minded Mercury in Sagittarius and you possess an indefatigable mind with a truly insatiable desire for self-betterment. You are so full of confidence and insight that you do not accept even a slightly reason to feel insecure or doubt yourself. This double-barrel fire placement makes you one of the most highly driven, action-oriented people in the zodiac. You don’t think, you feel and act on your thoughts with an iron hand — a blessing and a curse. You’re inquisitive and have a deep emotional well, yet you are fiercely loyal and protective of those you hold dear, not holding back if need be to protect the ones closest to your heart.
But this vast energy also presents a problem. The double Sagittarius can cause you to be dramatic as hell and defensive as fuck, because you’re likely keeping your heart locked up tight so that no one gets a look at how tender your inner world really is. You may feel a need for emotional tolerance, since you can't handle the in depth of your emotions. The world can be a lot, and you might find yourself in need of burnout to protect your powerful internal landscape.
The key to true peace is honoring the energy behind your feelings. By finding safe, nourishing ways to express the fire that you feel — whether through art or a creative pursuit, or in the form of a deeply trusting relationship with an other and affiliation in relation to love — you learn how to traverse those deep waters without drowning.

Venus in Scorpio

While the free book-loving spirit of Sagittarius sun is in your feelings zone and now centered within Venus as it travels the deep, transformative world of Scorpio for you love becomes intense full emotional depth with loyalty. Your outer you is all about the truth, and freedom in everything, But your within world of relationships is full of a strong urgent desire to be entwined with a shared love.
This is a beautiful, fascinating tension. That Sagittarius sun of yours wants to be flying free, learning and growing with wild abandon. But your Venus in Scorpio tugs you toward a world of intense emotional connections, fierce loyalty and the eternal search for deep passion. This gives you not just the power to experience the world, but also an opportunity to express your love on a powerful scale: one that is fiercely protective and all-consuming.
The strength of this combination is you can love tenderly as well as strongly. Your Scorpio heart and your Sagittarius’s boundless enthusiasm find a deep sense of purpose in each other, and an intimate, loyal foundation. You are magnetized to relationships that feel soul-deep and transformative, based on shared emotional intensity and a fierce loyalty. Your love flourishes in an environment of reciprocity and abiding trust.

Mars in Pisces

As the free-spirited Sagittarius sun meets up with go-getter Mars in the dreamy, intuitive sign of Pisces, your actions turn into an interesting combination of endless adventuring and spiritual empathy. Who you are on the outside is that of one who believes in truth and freedom, yet what motivates you inwardly is a desire to express yourself creatively and connect with others on a spiritual level. That dynamic provides a beautiful and compelling pull. Your Sagittarius sun yearns to ramble about, learn and expand with reckless abandon. But with your Mars in Pisces, you’re drawn to a world of compassionate action, creative expression and searching for personal freedom. It gives you the opportunity to feel not just the emotional depths of human connection, but also share an energy that is so fiercely reliable, protective and devoted. The real strength of this combination is you can love as a practical presence and be an adventurous soul. Your Pisces passion lends a deep sense of purpose to your Sagittarius’s infinite good cheer and humanitarianism. You’re attracted to partnerships that are spacious and optimistic, with shared spiritual values and a fierce commitment. You're at your best when surrounded by mutual respect and abundant curiosity.

Jupiter in Pisces

When the adventurous, open-minded Sagittarius sun meets its lucky expansiveness match in Jupiter through Pisces, the ethereal, empathetic realm of your star chart, your moves are an epic combo of limitless exploration and resolute enlightenment. Your External Personality desires Truth and Freedom in all things, but your internal motivations, be they fantasy or a desire for empathy, are strongly motivated towards the broad spiritual range of expansion.
It is powerful and compelling to draw on that, where it becomes a beautiful tension. Your Sagittarius sun craves the freedom to move and learn and grow with wild, fearless abandon. But your Jupiter in Pisces tugs you toward a world of deep passion, transformative goals and an endless desire to know the deepest truth about whatever. This enables you not only to sense the depths of emotional human connection, but also to channel your energetic output with excessive reliability, defenseiveness and dedication.
The magic of this combination is that you truly know how to trust your intuition and get things done with a soft determination. Your Pisces drive infuses your Sagittarius’s boundless enthusiasm with a deep sense of mission and a grounded base. You’re attracted to relationships that feel expansive and hopeful, based on shared spiritual beliefs and a fierce commitment. Your energy does so well in that atmosphere of mutual respect and continuing discovery.

Saturn in Sagittarius

With your Sagittarius sun and Saturn in Sagittarius, you are like a world explorer who has to also become a master cartographer. Your guts are those of someone who seeks truth and freedom, exploring and dispensing your knowledge to the world with boundless optimism. Yet life demands you learn a massive lesson – abetted by Saturn – and transform profoundly in your relationships, born of the urge to grow  intimately and objectively investigate. The ability to drive it all home is a magical, double-Sagittarius imprint. You were born with a lust for truth that is fundamentally unbreakable; you aren’t capable of just feeling these things. You are here to establish a system of rightness and fairness that lasts millennia. Harness your boundless social acuteness and intellectual clarity to form relationships and social partnerships rooted in respect and honest dealing. But to what end? The titanic intensity of this double emphasis on partnership is equally complemented by a mercurial struggle: the need to act decisively without seeking consensus. You must allow yourself to develop doubts and be constantly assuaged by those who agree with you. You would find serenity when you learn to trust your own integrity. Your life goal is to turn your boundless social and creative energy into a project or endeavor that stands the test of time. Career and community prizes await you when you lead with wisdom and maturity.

Uranus in Sagittarius

A person with that Sagittarius sun and a Uranus in Sagittarius is the wandering philosopher who must rise to be a visionary theorist. The deepest yearnings of your heart are for truth and freedom, to explore the world and offer your wisdom gently. But the great lesson of your life, brought to you by Uranus, is to construct balance, order and a lasting change in your relationships. There is great power resident in that blend, a positive dynamic between your longing for eternal union and the equally profound need to investigate dispassionately.
This twin-Sagittarius position turns you into a born change-agent, convinced right will eventually overcome wrong. You are here not only to feel things; you are also here to erect a system of equity and fairness that lasts. Your job is to deploy your extraordinary social grace and cerebral transparency to create relationships and communities based on mutual respect and honest dealing.
But this extreme focus on partnership entails a major challenge: how to make decisive decisions without waiting for consensus. You might be insecure and need constant reassurance, although you may become unnecessarily indecisive when your artistry is criticized. Your own path to inner peace is believing that your work is good enough and you don’t have to be validated externally in order for it to feel like you matter.
The task in your life is to direct a powerful need for unity into some kind of social or creative undertaking that has lasting value. When you understand and lead with principles of truth, integrity, and emotional maturity — your genius is not only going to show up in color, it will become a beacon that others can use to find their own greatness.

Neptune in Capricorn

You have a Solar Sagittarius nature and are determined to succeed in competition. Sagittarius is an adventurous and philosophical with a desire to expand their horizons through education, travel, or personal growth. This is expansive coming into grounding, discipline and practical in Capricorn. Neptune in Capricorn wants us to transform vision into a practical goals, ambition meets strategy.
This is the ideal blend of adventurousness and focus, just like by your crush. Sagittarius desires freedom and excitement while Neptune in Capricorn encourages them to funnel that enthusiasm into real accomplishments and effective long-term projects. They may be inclined to leadership, education or travel and activities that are visionary as well as material.
At a deeper level, Sagittarius Sun conjunct Neptune in Capricorn could find themselves operating through the tension between ideals and form, figuring out translations from the big ideas and dreams to daily work. They get to stretch, and translate good ideas into action Insights into impact.. When the two are in harmony, such a mix creates an adventurous yet disciplined personality – one who can explore meaning and growth while making continual ground with her work.

Pluto in Scorpio

Pluto in Scorpio sits in your 12th house, Sagittarius — the house of the subconscious mind, spirituality, behind-the-scenes patterns, and endings. It’s a very deep inward placement, and one which transforms beneath the surface in ways that are deeply too you.
You might feel the pull towards solitude, restorative action or spiritual practice which brings you face to face with what has been buried. Old fears, secrets or karmic cycles may emerge asking to be released. This shift can sometimes feel heavy, but it’s a reining in: It removes whatever doesn’t serve your growing anymore.
Dreams, gut instincts and coincidences emerge as potent signposts. You could discover latent strengths in the healing or psychology or spiritual-readings department. Pluto here often inspires you to make contact with the invisible and learn to trust your intuition.
As a Sagittarius, you’ve been born an optimist and into something bigger than yourself, and all that forward-guiding energy sizzles with possibility — this is what causes your adventurous spirit to take the dare. 
At the end of this cycle you will have shaken off layers of illusion and fear and emerged with an even deeper spiritual strength. You would hold a quiet resilience and an attachment to truth that no outside challenge could shake.

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Sagittarius – is the zodiac sign of those born on December 18 1986

Love Matches for Sagittarius Born

Top Love MatchesLeoAriesAquarius

For those born December 18 1986 under the Sagittarius sign, love compatibility reveals the best matches for a lasting marriage and passion in bed. While some signs are destined for great sex and family harmony, others may struggle. Whether you’re a man or woman, check our compatibility reports to find out which signs light your fire and which just don’t.

Astrological Natal Chart Information for Those Born on December 18 1986, Under the Sign of Sagittarius

Astrology is an ancient practice of discerning from the positions and motions of celestial bodies insights into our distinctive character traits, professional potentials, and relationship patterns. Your natal chart is a precise map of the skies at the time of your birth, telling you who you are and what life paths you may follow. If your birth date falls between November 22 and December 21, then you express the qualities of the Sagittarius zodiac sign.

Who is Sagittarius?
Sagittarius is a mutable Fire sign ruled by Jupiter, the planet of growth, abundance, and higher learning. People born under Sagittarius are known for their adventurous spirit, optimism, and philosophical outlook on life, mostly with an urge to explore the world, physically and intellectually. Be it going to places far, far away, learning new languages, or getting involved in an academic field which has never been pursued earlier, Sagittarians always aim at the expansion of the mind and horizons. Freedom, truth, and experiences that let them learn more about the secrets of life are in order. Enthusiastic and curious by nature, the challenges become opportunities for personal growth and expansion.

Your Sagittarius Birth Chart
Astroline calculates and interprets your natal chart to understand how Sagittarius influences your personality because you were born under that sign. We give a true cosmic snapshot of the positions of the planets at the time of birth mapped using Greenwich Mean Time and the location of Greenwich.
Learn how Jupiter’s guiding energy heightens your optimism, fire-element traits fuel your passion for adventure, and how other planetary placements influence relationships, career paths, and personal growth. If you were born on December 18 1986, within the Sagittarius window, our initial assessment shines light on your adventurous spirit and keen thirst for knowledge.

Why the Exact Details Matter
While a date of birth will point to core Sagittarian tendencies, such as a wide-open mind, tremendous humor, and an incurable curiosity, having the exact birth time and place allows giving deeper accuracy. With complete data, Astroline can incorporate your Ascendant, Moon sign, other planetary aspects, and individualize your reading to allow you to see hidden strengths, problems that may be coming up, or the most harmonious routes that assure personal fulfillment. By understanding these multi-dimensional layers of your Sagittarius blueprint, you could finesse an approach to love, career advancement, and economic stability with emotional well-being.

Unleash Your Full Sagittarius Potential
Armed with specific knowledge of your Sagittarius traits, you can learn to harness this free-spirited nature toward lofty goals-maybe even Wanderlust, which has been transformed into purposeful journeys, literally and metaphorically. Whether in the area of pursuing worldwide career opportunities, nurturing passionate and candid relationships, growing an interest in very diverse cultures and philosophies, tapping into your Sagittariusness fires up continued growth.

Lean into your natural enthusiasm and learn to harness your restless energy with rooted intention so your search for truth and adventure can serve as a guide, pointing you toward a fuller and more rewarding life.

Learn More with Astroline
Create your Astrology Birth Chart form for a custom Sagittarius report who born December 18 1986. More than just birth charts, the Astroline app will keep you in your right place with daily horoscopes for Sagittarius, spiritual guidance in the way of tarot reading and palm readings, and even practical, real-world advice for everyday decision-making from astrology. While you’re busy expanding your world, here are some ways to keep yourself tethered to your authentic, exploratory, and inspired Sagittarius self.

Sagittarius Compatibility

Sagittarius is the adventurous, optimistic, and freedom-loving sign of the zodiac. Ruled by Jupiter, Sagittarians seek exploration, growth, and truth. In relationships, they value independence, honesty, and shared adventures, thriving with partners who match their enthusiasm and curiosity. Here’s how Sagittarius connects with each zodiac sign, from fiery Aries to sensitive Pisces.

Sagittarius and Aries compatibility is energetic, bold, and full of adventure. Both signs are passionate and love action, creating a lively, exciting, and spontaneous relationship. They inspire each other to take risks and embrace life fully, though they must manage impulsiveness and occasional impatience.

Sagittarius + Taurus combines freedom with stability. Taurus values routine and security, while Sagittarius seeks adventure and change. If they respect each other’s needs, Taurus can provide grounding, and Sagittarius can bring excitement and optimism into the relationship.

Sagittarius & Gemini compatibility is vibrant, playful, and intellectually stimulating. Both signs love curiosity, variety, and freedom. Their relationship thrives on conversation, exploration, and shared experiences, creating a dynamic and engaging partnership.

Sagittarius and Cancer compatibility is a blend of adventure and emotional depth. Cancer seeks security and closeness, while Sagittarius craves independence and exploration. If both respect their differences, Sagittarius inspires Cancer to embrace adventure, and Cancer teaches Sagittarius emotional patience.

Sagittarius + Leo compatibility is a naturally fiery and dynamic pairing. Both are bold, passionate, and energetic. They share a love for adventure, excitement, and social life, forming a relationship full of optimism, fun, and mutual admiration.

Sagittarius and Virgo compatibility can be a challenging mix of freedom and practicality. Sagittarius is spontaneous and adventurous, while Virgo prefers structure and planning. Mutual respect and compromise allow Sagittarius to inspire Virgo to explore, and Virgo to ground Sagittarius’ enthusiasm.

Sagittarius + Libra compatibility is harmonious, lively, and social. Both enjoy freedom, intellectual conversation, and shared experiences. Libra brings balance and diplomacy, while Sagittarius adds optimism and adventure, creating an engaging and exciting connection.

Sagittarius and Scorpio compatibility blends passion with intensity. Scorpio is deep, strategic, and emotional, while Sagittarius is open, adventurous, and free-spirited. If they respect each other’s differences, they can learn from one another and develop a strong, transformative bond.

Sagittarius + Sagittarius compatibility is full of adventure, exploration, and shared optimism. Both value freedom and growth, creating a relationship that is energetic, fun, and full of possibilities. Mutual respect for independence keeps the bond strong.

Sagittarius and Capricorn compatibility combines optimism with discipline. Capricorn brings structure and long-term focus, while Sagittarius brings adventure and enthusiasm. Together, they can balance goals and freedom, achieving growth and stability as a team.

Sagittarius + Aquarius compatibility is intellectually stimulating and adventurous. Both love freedom, exploration, and innovation. This relationship thrives on shared ideals, curiosity, and the joy of discovering new possibilities together.

Sagittarius and Pisces compatibility blends imagination with adventure. Pisces brings sensitivity, intuition, and emotional depth, while Sagittarius contributes optimism, freedom, and curiosity. When balanced, they can inspire each other and create a compassionate, exploratory partnership.

Celebrities born on December 18

It’s likely you celebrate your birthday alongside famous artists, politicians, and innovators who have made a tremendous impact on the world in various fields. As the Astroline birth charts prove, their success is written in the stars, and so is yours!

Use our celebrity natal charts and birth horoscopes to explore their star astrology profiles and find out what might be possible for you, too. Let their success stories inspire you to embrace your potential, pursue your dreams, and make your mark on the world.

Which famous people were born December 18?
On December 18, remarkable celebrities like were born:

Check your horoscope today

Capricorn

Capricorn

22 Dec - 19 Jan

It’s not like you to find it hard to make up your mind but you have doubts about what to do next. You don’t need to make an immediate decision. Sleep on it tonight.

Capricorn Daily Horoscope
Aquarius

Aquarius

20 Jan - 18 Feb

Today could be quite an interesting day! You might find that your home routine gets shaken up a bit, with unexpected visitors or even small appliance breakages. Whatever happens, make sure to look your best - you never know when someone intriguing might show up at your doorstep. So go ahead and get dressed - you've got this!

Aquarius Daily Horoscope
Pisces

Pisces

19 Feb - 20 Mar

Refrain from hasty conclusions and assessments to avoid possible problems in communicating with others. Be tolerant of others’ shortcomings, do not attribute to people vices that are not inherent in them. When deciding whether to rest, listen to the advice of the stars. You are not recommended to travel over long distances, but a little trip will be a very good idea.

Pisces Daily Horoscope
Aries

Aries

21 Mar - 19 Apr

The day feels empowering, so catch the wave. Candid conversations are taking place around you, with issues being steered toward more sensitive topics. Your perceptive nature allows you to tap into the deeper meanings being presented at this time. Sharing with others what you truly want, need, and desire takes courage - something you are able to access easily today. You could be surprised at your own ability to speak the truth; in fact you can’t stop it from coming out of your mouth.

Aries Daily Horoscope
Taurus

Taurus

20 Apr - 20 May

Think about your future: any desires are feasible, if you make due efforts. The chance to get a big profit at minimum cost is very large. It is quite possible excitement associated with the decision of the housing problem. Stars advise responsibly to acquire real estate, you may be able to find a suitable rental option for you.

Taurus Daily Horoscope
Gemini

Gemini

21 May - 21 Jun

Your focus on close friendships and partnerships is fine-tuned. This is why this is the best time of the year to learn more about your style of relating to those who are closest to you. It also means you need more rest and more sleep.

Gemini Daily Horoscope
Cancer

Cancer

22 Jun - 22 Jul

It’s easy to emotionally identify with something that you own today, which is why you won’t give it away or lend it to anyone. In discussions with someone, you might have to defend yourself about something perhaps your opinions or tastes.

Cancer Daily Horoscope
Leo

Leo

23 Jul - 22 Aug

Take time to appreciate the abundance around you today! You have access to so many ideas, plans, and resources — keep them organized so they're easily accessible when the time is right. Rejoice in your good fortune and be thankful for it!

Leo Daily Horoscope
Virgo

Virgo

23 Aug - 22 Sep

Start your day with a positive attitude and focus on activities that make you feel good. Remember that challenges are part of life, but don't let them overwhelm you. Be mindful of your spending today and stick to the essentials.

Virgo Daily Horoscope
Libra

Libra

23 Sep - 22 Oct

This day promises pleasant events, for example, a meeting with old friends. Do not miss the chance to renew useful contacts. However, first of all, be guided by internal sensations.

Libra Daily Horoscope
Scorpio

Scorpio

23 Oct - 22 Nov

Take the initiative to speak your truth and work towards a peaceful resolution. Open up and share your true feelings with respect, while seeking out common ground. You can create a positive outcome and heal any hurt that may have been caused.

Scorpio Daily Horoscope
Sagittarius

Sagittarius

23 Nov - 21 Dec

It’s quite hard to discuss what is behind the scenes, or below the surface, or at the back of your mind the whole time. It’s really for you, about you – and nobody else. Yet, this is where you have to make a deal now.

Sagittarius Daily Horoscope

More Birth Charts December 18

FAQ

What is a birth chart?

A birth chart, also called a natal chart, is technically a snapshot of the sky at the exact moment of your birth. It’s made up of several symbols representing zodiac signs, planets, and houses. The combination of these symbols can tell you a lot about your personality and life path.

How is a birth chart calculated?

A birth chart is calculated based on the exact time, date, and place where you were born. To ensure the accuracy of the birth chart, the time must be as precise as possible.

How to read a birth chart?

Reading a birth chart may seem daunting at first, but it can be broken down into a few simple elements. The planets, signs, and houses all hold specific meanings in a birth chart, and in Astroline, you’ll find detailed interpretations for each element.

What is ascendant in a birth chart?

The ascendant, or rising sign, is the zodiac sign that was rising on the eastern horizon at the time you were born. In your birth chart, the ascendant represents your attitude to life and how you express yourself to others.

How do I find my birth chart in Astroline?

In the Astroline app, simply enter your birth data and create a profile. Then, go to the Birth Chart tab to see your chart and interpretation. Use the options on the top to explore different aspects of your chart, such as planets, houses, and daily transits.
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