Jan van Leeuwen is a Dutch theoretical computer scientist born on December 17, 1946, in Waddinxveen. He has made significant contributions to the field of theoretical computer science, influencing various areas of research with his work. His insights and expertise in the subject have made him a prominent figure in academia, particularly in the Netherlands.
Zodiac Sign (Western)
Sunsign, Tropical Zodiac
Zodiac Sign (Vedic)
Moonsign, Sidereal Zodiac
Age (Today)
Your next birthday is 191 days away.
Place of Birth
Time Zone -
Chinese Zodiac Sign
Birth Number
Life Path Number
Name Number (Chaldean)
Name Number (Pythagorean)
Meaning of the name - Jan
Read Full Jan Name AnalysisDecember 17, 1946 Facts
Generation Group
Jan van Leeuwen belongs to the Baby Boomers group.
Place of Birth: Waddinxveen
Educated At: Utrecht University
Occupation: university teacher | computer scientist
Employers: Pennsylvania State University | University at Buffalo | Utrecht University
Awards Received: ACM Distinguished Service Award
Astrology Analysis
Note: This birth chart is calculated using the date and place of birth, with the time set to noon (12:00 PM) local time. While this provides accurate planetary positions for most celestial bodies, the Ascendant (Rising Sign) and house cusps are not calculated since they require precise birth time. For a complete astrological analysis including houses and rising sign, please provide the exact birth time.Ephemeris for December 17, 1946
Note: Moon position is location and time sensitive.| Planet | Position (Tropical, Western) | Transits on December 17, 2025 | Secondary Progressions for December 17, 2025 |
|---|---|---|---|
| Sun | 25 Sagittarius 10 | 26 Sagittarius 0 | 15 Pisces 17 |
| Moon | 21 Libra 27 | 0 Sagittarius 8 | 9 Virgo 45 |
| Mercury | 6 Sagittarius 5 | 7 Sagittarius 37 | 19 Pisces 38 |
| Venus | 18 Scorpio 47 | 21 Sagittarius 13 | 1 Aquarius 43 |
| Mars | 0 Capricorn 12 | 1 Capricorn 48 | 1 Pisces 36 |
| Jupiter | 17 Scorpio 35 | 23 Cancer 6 | 27 Scorpio 20 |
| Saturn | 8 Leo 41 | 25 Pisces 24 | 3 Leo 8 |
| Uranus | 19 Gemini 33 | 28 Taurus 24 | 17 Gemini 48 |
| Neptune | 10 Libra 37 | 29 Pisces 22 | 10 Libra 5 |
| Pluto | 13 Leo 7 | 2 Aquarius 18 | 11 Leo 27 |
| Rahu | 10 Gemini 54 | 12 Pisces 55 | 6 Gemini 43 |
| Ketu | 10 Sagittarius 54 | 12 Virgo 55 | 6 Sagittarius 43 |
Chandra Kundali (Equal House, North Indian Diamond Chart)
Astrology Transits Analysis for Year 2026
Jan van Leeuwen's 2026 Transits to Natal Planets
- Saturn square Sun
Exact: 01 January, 2026 - Jupiter trine Venus
Exact: 11 January, 2026 - Jupiter trine Jupiter
Exact: 21 January, 2026 - Saturn square Mars
Exact: 20 February, 2026 - Jupiter trine Jupiter
Exact: 21 April, 2026 - Mars aspects Jupiter
Exact: 01 May, 2026 - Jupiter trine Venus
Exact: 01 May, 2026 - Saturn sextile Rahu
Exact: 21 May, 2026 - Mars square Saturn
Exact: 31 May, 2026 - Mars opposition Jupiter
Exact: 10 June, 2026 - Mars aspects Mars
Exact: 30 June, 2026 - Jupiter trine Mercury
Exact: 30 July, 2026 - Jupiter conjunction Saturn
Exact: 09 August, 2026 - Jupiter trine Ketu
Exact: 19 August, 2026 - Saturn sextile Rahu
Exact: 28 September, 2026 - Jupiter trine Sun
Exact: 17 November, 2026 - Mars square Mercury
Exact: 17 December, 2026
