Cornelis den Hartog, born on January 28, 1931, in Den Helder, is a distinguished Dutch marine ecologist, algologist, and botanist. He taught at the University of Nijmegen until his retirement in 1996, focusing on various marine studies including mesofauna and macrophytes. He earned his Ph.D. in 1959 and published significant works, including 'Seagrasses of the World'. Den Hartog has supervised 31 doctoral students and was instrumental in founding 'Aquatic Botany' in 1975. His authority in plant taxonomy is recognized by the abbreviation 'Hartog'.
Zodiac Sign (Western)
Sunsign, Tropical Zodiac
Zodiac Sign (Vedic)
Moonsign, Sidereal Zodiac
Age (Today)
Your next birthday is 231 days away.
Death Anniversary
Next death anniversary is 160 days away.
Death Date
Place of Birth
Time Zone - Europe/Amsterdam (0:19 E)
Chinese Zodiac Sign
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Meaning of the name - Cornelis
man of the horn
Read Full Cornelis Name AnalysisJanuary 28, 1931 Facts
Generation Group
Cornelis den Hartog belongs to the Silent Generation group.
Place of Birth: Den Helder
Educated At: University of Amsterdam
Occupation: botanist | university teacher
Spouses: Irene M. Adams
Children: 1 daughter | 2 sons
Employers: Radboud University Nijmegen
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 January 28, 1931
Note: Moon position is location and time sensitive.| Planet | Position (Tropical, Western) | Transits on January 28, 2026 | Secondary Progressions for January 28, 2026 |
|---|---|---|---|
| Sun | 7 Aquarius 36 | 8 Aquarius 33 | 12 Taurus 4 |
| Moon | 24 Taurus 45 | 9 Gemini 4 | 29 Scorpio 7 |
| Mercury | 12 Capricorn 43 | 13 Aquarius 18 | 7 Taurus 8 |
| Venus | 20 Sagittarius 52 | 13 Aquarius 46 | 8 Aries 51 |
| Mars | 6 Leo 37 | 3 Aquarius 58 | 11 Leo 33 |
| Jupiter | 12 Cancer 30 | 17 Cancer 46 | 15 Cancer 3 |
| Saturn | 17 Capricorn 10 | 28 Pisces 12 | 23 Capricorn 31 |
| Uranus | 12 Aries 2 | 27 Taurus 29 | 16 Aries 51 |
| Neptune | 5 Virgo 7 | 0 Aries 2 | 3 Virgo 2 |
| Pluto | 19 Cancer 25 | 3 Aquarius 35 | 18 Cancer 53 |
| Rahu | 18 Aries 9 | 10 Pisces 42 | 13 Aries 7 |
| Ketu | 18 Libra 9 | 10 Virgo 42 | 13 Libra 7 |
Chandra Kundali (Equal House, North Indian Diamond Chart)
