Jan Koller’s birth chart
Born 30 March 1973, in Smetanova Lhota, Czech Republic. StarMap has no verified birth time yet.
Aries Sun · Aquarius Moon
Jan Koller’s zodiac sign and chart, in brief
30 March 1973 was a Friday: the day Jan Koller was born in Smetanova Lhota, Czech Republic. Their zodiac sign is Aries, with the Moon in Aquarius. Jan turns 53 in 2026. StarMap has not verified a birth time yet, so the chart is cast for midday on that date and has no houses.
By element the count is six air, three fire, one water and no earth. By modality the count is four cardinal, three fixed and three mutable. Three planets stand together in Aquarius: Moon, Mars and Jupiter. No two planets sit closer to an exact angle than Mercury and Saturn: a square, exact to a tenth of a degree. Aspects to the Moon are not counted, because the Moon moves about thirteen degrees in a day. Three planets were retrograde: Uranus, Neptune and Pluto. The Moon was a waning crescent.
StarMap's dataset holds 13 other people born on 30 March, among them Celine Dion, Eric Clapton and Sergio Ramos.
See the sky the day Jan was born: the stars over Smetanova Lhota, Czech Republic, drawn as a star map with the date and the place beneath.
Jan Koller’s Sun, Moon and rising sign
Sun sign
Aries
about 9° Aries at midday
An Aries Sun starts things. For Jan Koller that points to energy that is direct and impatient with delay, and to feeling most like themselves when there is something to go first at. The work of this placement is finishing what the spark began.
Moon sign
Aquarius
in this sign all day; the degree depends on the birth time
An Aquarius Moon feels from a step back. Jan is likely to understand an emotion better than they inhabit it, and to need space and ideas to process. For this Moon, friends are family and freedom is security.
Rising sign
The rising sign changes about every two hours, so it cannot be known without a birth time. The table below shows which sign was rising over Smetanova Lhota, Czech Republic, at each hour of the day.
Jan Koller’s rising sign, by birth time
StarMap has not verified a birth time for Jan yet. It shows a birth time only when Astro-Databank rates it AA, A or B on the Rodden scale (AA from a birth certificate or record, A from the person, someone close to them or a news report, B from a biography). Until then, this is the rising sign for every possible time of birth on 30 March 1973, computed for Smetanova Lhota, Czech Republic.
| Born around (local time) | Rising sign |
|---|---|
| 00:00 to 01:35 | Sagittarius rising |
| 01:35 to 03:25 | Capricorn rising |
| 03:25 to 04:40 | Aquarius rising |
| 04:40 to 05:35 | Pisces rising |
| 05:35 to 06:30 | Aries rising |
| 06:30 to 07:45 | Taurus rising |
| 07:45 to 09:30 | Gemini rising |
| 09:30 to 12:00 | Cancer rising |
| 12:00 to 14:45 | Leo rising |
| 14:45 to 17:30 | Virgo rising |
| 17:30 to 20:20 | Libra rising |
| 20:20 to 23:05 | Scorpio rising |
| 23:05 to 24:00 | Sagittarius rising |
Times are rounded to five minutes. Close to a boundary, a few minutes either way change the answer.
The chart wheel
Drawn for midday on 30 March 1973, with only the aspects that held all day. The Moon may stand up to eight degrees either side of where it is drawn. How to read a chart wheel
Placements
| Sun | 9° Aries 36' |
|---|---|
| Moon | Aquarius |
| Mercury | 15° Pisces 27' |
| Venus | 6° Aries 57' |
| Mars | 2° Aquarius 32' |
| Jupiter | 6° Aquarius 41' |
| Saturn | 15° Gemini 26' |
| Uranus | 21° Libra 31'℞ |
| Neptune | 7° Sagittarius 18'℞ |
| Pluto | 2° Libra 53'℞ |
| North Node | 12° Capricorn 42' |
| South Node | 12° Cancer 42' |
Positions at midday, local time. Without a birth time there are no houses.
Jan Koller’s planets, sign by sign
Each planet by sign: what the placement is traditionally taken to mean, not a claim about Jan Koller’s private life.
With the Sun in Aries, Jan Koller's sense of purpose tends to come alive when there is a clear start line. They probably feel most like themselves pushing into something new, though that energy can burn hot and fade before the finish. The typical pattern is a project launched with excitement, then handed off once the routine sets in.
An Aquarius Moon processes daily feelings by stepping back and thinking them through rather than sitting inside them, and Jan is likely to need a degree of independence built into any close relationship. The temptation is to analyse a feeling instead of simply having it. Even after a good day with people, this Moon needs time alone to recover.
Mercury in Pisces thinks in images and impressions more than straight lines, and Jan is likely to communicate through metaphor, tone and instinct rather than clean argument. Explaining a conclusion they nonetheless feel certain about can be the struggle. It is the kind of mind that knows something is off before it can say why.
Venus in Aries loves with immediacy and pursues what it wants without much hesitation, and it values a partner who can keep up. For Jan that suggests an interest that can fade once the chase is over. The pattern is to fall fast and to need a relationship to keep feeling like a choice, not a routine.
Mars in Aquarius acts on principle, and its anger surfaces most over unfairness or hypocrisy rather than personal slights. Jan can detach from a conflict so thoroughly that the other person feels shut out. The issue tends to get argued with heat while the relationship itself is treated with strange calm.
Jupiter in Aquarius
6° Aquarius 41' at midday
growth and excess
Jupiter in Aquarius grows through community, ideas and causes bigger than one life. Jan may put so much trust in a theory or a group that its practical flaws are overlooked. Optimism about the future can make them a natural organiser of other people's efforts.
Saturn in Gemini builds discipline around clear expression, and it often begins with doubt about whether an idea is good enough to say out loud. For Jan that would mean overpreparing before speaking or writing anything. Once the self-consciousness eases, the result can be someone unusually precise and credible with words.
Uranus in Libra
21° Libra 31' at midday ℞
freedom, generational
Jan holds Uranus in Libra in common with many people born in the same stretch of years. Together that generation reshapes ideas of partnership, fairness and how relationships are arranged. Its personal side is a readiness to question traditional roles more openly than earlier generations felt able to.
Neptune in Sagittarius
7° Sagittarius 18' at midday ℞
imagination, generational
Neptune in Sagittarius is the dream of a generation: grand systems of belief and utopian journeys. What belongs to Jan in it may be a hopeful conviction that the right philosophy will resolve a practical problem.
Pluto in Libra
2° Libra 53' at midday ℞
power, generational
Pluto in Libra is the signature of the generation Jan belongs to, because Pluto moves so slowly. That generation transforms ideas of partnership, fairness and what people owe one another. Personally it can be an intense need for relationships to be fundamentally fair.
Aspects in Jan Koller’s chart
How the planets stand to each other, tightest first. Without a birth time the orbs are those at midday, and aspects to the Moon are left out because the Moon moves about thirteen degrees in a day.
Mercury square Saturn
about 0.0° at midday
Self-doubt can get into thinking when Mercury is square Saturn, in the form of over-editing or delaying a decision that was ready. Sharing the unfinished thought anyway, again and again, is what loosens the doubt's hold over what Jan Koller is willing to say out loud.
Venus sextile Jupiter
about 0.3° at midday
Warmth and generosity come naturally to Jan and stop short of overextending, because affection and optimism work together in this sextile. Call it comfortable, unforced goodwill, the kind that makes people feel welcome without any performance being needed.
Mars trine Pluto
about 0.4° at midday
Resilience under pressure, and the ability to come back stronger from a setback, are the marks of this trine between drive and the capacity for change. In Jan's chart the aspect points to a quiet, formidable strength, the kind other people notice mainly in how little it seems to cost.
Venus trine Neptune
about 0.4° at midday
Jan is likely to love with a romantic, artistic quality that comes naturally, because affection and imagination flow together under this trine. Compassion and creativity arrive easily, and the people nearby tend to feel cared for as a result.
Jupiter sextile Neptune
about 0.6° at midday
Inspired ideas are within Jan's reach without any loss of footing, since possibility and imagination are gently linked by this sextile. The optimism is soft and workable, useful for keeping a project hopeful without letting it drift far from what is real.
Sun trine Neptune
about 2.3° at midday
Jan's identity and imagination flow together easily, giving them an intuitive, artistic quality that feels natural rather than performed. With the Sun trine Neptune, compassion comes without much effort, and other people often sense it before a word has been said.
The rest, listed without a reading. Those between Uranus, Neptune and Pluto hold for years at a time, so everyone born while one holds shares it.
- Sun conjunction Venusabout 2.6°
- Sun sextile Jupiterabout 2.9°
- Jupiter trine Plutoabout 3.8°
- Venus opposition Plutoabout 4.1°
- Mars conjunction Jupiterabout 4.1°
- Venus sextile Marsabout 4.4°
- Neptune sextile Plutoabout 4.4°
- Saturn trine Uranusabout 6.1°
- Sun opposition Plutoabout 6.7°
Aries Sun and Aquarius Moon, like Jan Koller
Also born on 30 March
How this page is made
Planet positions are computed with the astronomy-engine ephemeris and checked against Swiss Ephemeris. Birth dates and places come from Wikidata; birth times, where StarMap has one, come from Astro-Databank and are shown with their Rodden rating. The readings describe what a placement is traditionally taken to mean. They are written by StarMap for reflection and entertainment, not as statements about the person’s private life. New to charts? How to read a birth chart.
Birth data: Wikidata. StarMap has not verified a birth time yet. Photo: Wikimedia Commons (author and licence on the file page).
StarMap is for entertainment and self-reflection. It does not predict health, money or legal outcomes.