Simon Frederik Portegies Zwart is a Dutch astronomer born on April 21, 1965, in Amsterdam. He actively works in both computer science and astrophysics. His research primarily focuses on simulating astronomical phenomena using supercomputers. He leads an interdisciplinary team of computationally oriented astronomers at the Leiden Observatory of Leiden University, contributing to advancements in the field through innovative simulation techniques.
Zodiac Sign (Western)
Sunsign, Tropical Zodiac
Zodiac Sign (Vedic)
Moonsign, Sidereal Zodiac
Age (Today)
Your next birthday is 272 days away.
Place of Birth
Time Zone - Europe/Amsterdam (1:0 E)
Chinese Zodiac Sign
Birth Number
Life Path Number
Name Number (Chaldean)
Name Number (Pythagorean)
Meaning of the name - Simon
listener, he who hears
Read Full Simon Name AnalysisApril 21, 1965 Facts
Generation Group
Simon Portegies Zwart belongs to the Generation X group.
Place of Birth: Amsterdam
Educated At: Utrecht University | University of Amsterdam
Occupation: university teacher | astronomer
Employers: Faculteit der Wiskunde en Natuurwetenschappen | Leiden University
Awards Received: Pastoor Schmeitsprijs
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 April 21, 1965
Note: Moon position is location and time sensitive.| Planet | Position (Tropical, Western) | Transits on April 21, 2025 | Secondary Progressions for April 21, 2025 |
|---|---|---|---|
| Sun | 1 Taurus 8 | 1 Taurus 36 | 28 Gemini 54 |
| Moon | 4 Capricorn 39 | 6 Aquarius 11 | 8 Pisces 37 |
| Mercury | 11 Aries 47 | 4 Aries 18 | 9 Cancer 13 |
| Venus | 3 Taurus 32 | 25 Pisces 58 | 17 Cancer 15 |
| Mars | 8 Virgo 44 | 1 Leo 22 | 25 Virgo 51 |
| Jupiter | 29 Taurus 37 | 19 Gemini 31 | 13 Gemini 27 |
| Saturn | 13 Pisces 54 | 26 Pisces 45 | 17 Pisces 22 |
| Uranus | 11 Virgo 5 | 25 Taurus 48 | 11 Virgo 14 |
| Neptune | 19 Scorpio 7 | 0 Aries 47 | 17 Scorpio 37 |
| Pluto | 13 Virgo 58 | 3 Aquarius 46 | 13 Virgo 52 |
| Rahu | 16 Gemini 7 | 25 Pisces 38 | 12 Gemini 57 |
| Ketu | 16 Sagittarius 7 | 25 Virgo 38 | 12 Sagittarius 57 |
Chandra Kundali (Equal House, North Indian Diamond Chart)
Astrology Transits Analysis for Year 2025
Note: Multiple transits occurring in close proximity often signify a major event in a person's life.Simon Portegies Zwart's 2025 Transits to Natal Planets
- Saturn conjunction Saturn
Exact: 01 January, 2025 - Saturn square Ketu
Exact: 21 January, 2025 - Jupiter conjunction Rahu
Exact: 01 April, 2025 - Jupiter opposition Ketu
Exact: 01 April, 2025 - Saturn sextile Jupiter
Exact: 31 May, 2025 - Jupiter opposition Moon
Exact: 30 June, 2025 - Mars opposition Saturn
Exact: 10 July, 2025 - Mars aspects Sun
Exact: 09 August, 2025 - Jupiter trine Saturn
Exact: 09 August, 2025 - Saturn sextile Jupiter
Exact: 29 August, 2025 - Mars opposition Venus
Exact: 28 September, 2025 - Rahu conjunction Saturn
Exact: 17 November, 2025 - Mars conjunction Ketu
Exact: 27 November, 2025 - Mars opposition Rahu
Exact: 27 November, 2025
