Sybren Ruurds de Groot, also known as S. R. de Groot, was a Dutch physicist born on April 8, 1916, in Amsterdam and passed away on May 9, 1994. He was a prominent figure in the field of statistical non-equilibrium physics and is recognized as one of its founders. His work contributed significantly to the understanding of physical systems that are not in equilibrium, establishing concepts and models that are essential in modern physics.
Zodiac Sign (Western)
Sunsign, Tropical Zodiac
Zodiac Sign (Vedic)
Moonsign, Sidereal Zodiac
Age (Today)
Your next birthday is 315 days away.
Death Anniversary
Next death anniversary is 28 days away.
Death Date
Place of Birth
Time Zone - Europe/Amsterdam (0:19 E)
Chinese Zodiac Sign
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Name Number (Pythagorean)
Meaning of the name - Sybren
bright, shining
Read Full Sybren Name AnalysisApril 18, 1916 Facts
Generation Group
Sybren Ruurds de Groot belongs to the GI Generation group.
Place of Birth: Amsterdam
Place of Death: Amsterdam
Educated At: University of Amsterdam
Occupation: university teacher | physicist
Employers: Utrecht University | University of Amsterdam | Leiden University
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 18, 1916
Note: Moon position is location and time sensitive.| Planet | Position (Tropical, Western) | Transits on April 18, 2026 | Secondary Progressions for April 18, 2026 |
|---|---|---|---|
| Sun | 28 Aries 6 | 28 Aries 27 | 13 Leo 38 |
| Moon | 1 Scorpio 42 | 12 Taurus 10 | 8 Scorpio 39 |
| Mercury | 2 Taurus 11 | 4 Aries 53 | 23 Leo 10 |
| Venus | 13 Gemini 32 | 23 Taurus 5 | 5 Cancer 45 |
| Mars | 14 Leo 27 | 6 Aries 43 | 8 Libra 39 |
| Jupiter | 15 Aries 22 | 17 Cancer 21 | 4 Taurus 34 |
| Saturn | 11 Cancer 33 | 7 Aries 35 | 23 Cancer 56 |
| Uranus | 19 Aquarius 7 | 29 Taurus 37 | 17 Aquarius 50 |
| Neptune | 29 Cancer 53 | 2 Aries 50 | 2 Leo 50 |
| Pluto | 1 Cancer 27 | 5 Aquarius 26 | 3 Cancer 47 |
| Rahu | 4 Aquarius 0 | 6 Pisces 28 | 28 Capricorn 10 |
| Ketu | 4 Leo 0 | 6 Virgo 28 | 28 Cancer 10 |
Chandra Kundali (Equal House, North Indian Diamond Chart)
