Robert H. MacArthur (1930 – 1972) was an American biologist, mathematician, and ecologist, born in Toronto. He was a member of the National Academy of Sciences and the American Academy of Arts and Sciences. MacArthur passed away in Princeton at the age of 42 due to kidney disease. His contributions to ecology and mathematical biology were significant, and his work has had a lasting impact on the field.
Zodiac Sign (Western)
Sunsign, Tropical Zodiac
Zodiac Sign (Vedic)
Moonsign, Sidereal Zodiac
Age (Today)
Your next birthday is 307 days away.
Death Anniversary
Next death anniversary is 150 days away.
Death Date
Place of Birth
Time Zone - America/Toronto (5:0 W)
Chinese Zodiac Sign
Birth Number
Life Path Number
Name Number (Chaldean)
Name Number (Pythagorean)
Meaning of the name - Robert
bright fame, shining glory
Read Full Robert Name AnalysisApril 7, 1930 Facts
Generation Group
Robert H. MacArthur belongs to the Silent Generation group.
Place of Birth: Toronto
Place of Death: Princeton
Cause of Death: kidney disease
Educated At: Marlboro College | Brown University | Yale University
Occupation: ecologist | ornithologist | biologist | zoologist | mathematician
Employers: University of Pennsylvania | Princeton University
Awards Received: George Mercer Award | Eminent Ecologist 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 April 7, 1930
Note: Moon position is location and time sensitive.| Planet | Position (Tropical, Western) | Transits on April 7, 2026 | Secondary Progressions for April 7, 2026 |
|---|---|---|---|
| Sun | 17 Aries 9 | 17 Aries 53 | 19 Cancer 36 |
| Moon | 3 Leo 38 | 20 Sagittarius 26 | 10 Aquarius 13 |
| Mercury | 23 Aries 50 | 20 Pisces 27 | 16 Cancer 21 |
| Venus | 1 Taurus 58 | 9 Taurus 54 | 27 Leo 42 |
| Mars | 16 Pisces 46 | 28 Pisces 21 | 28 Taurus 43 |
| Jupiter | 12 Gemini 45 | 16 Cancer 17 | 3 Cancer 28 |
| Saturn | 12 Capricorn 0 | 6 Aries 16 | 8 Capricorn 3 |
| Uranus | 11 Aries 40 | 29 Taurus 4 | 15 Aries 20 |
| Neptune | 1 Virgo 7 | 2 Aries 27 | 1 Virgo 45 |
| Pluto | 17 Cancer 27 | 5 Aquarius 19 | 19 Cancer 11 |
| Rahu | 3 Taurus 49 | 7 Pisces 2 | 28 Aries 44 |
| Ketu | 3 Scorpio 49 | 7 Virgo 2 | 28 Libra 44 |
Chandra Kundali (Equal House, North Indian Diamond Chart)
