Johan Cornelis Hendrik Gerretsen (1907-1983) was a Dutch mathematician known for his contributions to mathematics and education. He studied at the University of Groningen, earning his degree in 1930, and became a teacher until 1945. Gerretsen completed his doctorate in 1939 and later served as a professor from 1946 until his retirement in 1977. He was also instrumental in introducing computers at the University of Groningen, enhancing the application of mathematics in various fields.
Zodiac Sign (Western)
Sunsign, Tropical Zodiac
Zodiac Sign (Vedic)
Moonsign, Sidereal Zodiac
Age (Today)
Your next birthday is 330 days away.
Death Anniversary
Next death anniversary is 109 days away.
Death Date
Place of Birth
Time Zone - Europe/Amsterdam (0:19 E)
Chinese Zodiac Sign
Birth Number
Life Path Number
Name Number (Chaldean)
Name Number (Pythagorean)
Meaning of the name - Johan
God is gracious
Read Full Johan Name AnalysisMay 20, 1907 Facts
Generation Group
Johan Gerretsen belongs to the GI Generation group.
Place of Birth: Winschoten
Place of Death: Smalle Ee bij Drachten
Educated At: University of Groningen
Occupation: university teacher
Employers: University of Groningen
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 May 20, 1907
Note: Moon position is location and time sensitive.| Planet | Position (Tropical, Western) | Transits on May 20, 2025 | Secondary Progressions for May 20, 2025 |
|---|---|---|---|
| Sun | 28 Taurus 18 | 29 Taurus 43 | 21 Virgo 28 |
| Moon | 27 Leo 17 | 29 Aquarius 28 | 25 Sagittarius 49 |
| Mercury | 23 Taurus 35 | 18 Taurus 26 | 28 Virgo 36 |
| Venus | 27 Aries 25 | 14 Aries 24 | 21 Virgo 36 |
| Mars | 17 Capricorn 25 | 15 Leo 3 | 15 Capricorn 38 |
| Jupiter | 10 Cancer 14 | 25 Gemini 28 | 5 Leo 18 |
| Saturn | 25 Pisces 51 | 29 Pisces 32 | 24 Pisces 45 |
| Uranus | 12 Capricorn 15 | 27 Taurus 28 | 8 Capricorn 42 |
| Neptune | 10 Cancer 47 | 1 Aries 37 | 14 Cancer 35 |
| Pluto | 22 Gemini 40 | 3 Aquarius 45 | 24 Gemini 47 |
| Rahu | 26 Cancer 25 | 24 Pisces 6 | 20 Cancer 10 |
| Ketu | 26 Capricorn 25 | 24 Virgo 6 | 20 Capricorn 10 |
Chandra Kundali (Equal House, North Indian Diamond Chart)
