Mary P. Sinclair was an American environmental activist born on September 23, 1918. She became recognized as one of the nation’s foremost lay authorities on nuclear energy and its impacts on both the natural environment and human health. Throughout her life, Sinclair contributed significantly to environmental advocacy, particularly concerning nuclear energy, helping to raise awareness about its consequences and promoting broader environmental protection initiatives. Her work has inspired many in the field of environmental activism.
Zodiac Sign (Western)
Sunsign, Tropical Zodiac
Zodiac Sign (Vedic)
Moonsign, Sidereal Zodiac
Age (Today)
Your next birthday is 360 days away.
Death Anniversary
Next death anniversary is 256 days away.
Death Date
Place of Birth
Time Zone - America/Chicago (5:0 W)
Chinese Zodiac Sign
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Name Number (Chaldean)
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Meaning of the name - Mary
Read Full Mary Name AnalysisSeptember 23, 1918 Facts
Generation Group
Mary P. Sinclair belongs to the GI Generation group.
Place of Birth: Chisholm
Place of Death: Northampton
Educated At: St. Catherine University | University of Michigan
Occupation: anti-nuclear activist
Employers: University of Michigan
Awards Received: Michigan Women's Hall of Fame
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 September 23, 1918
Note: Moon position is location and time sensitive.Planet | Position (Tropical, Western) | Transits on September 23, 2025 | Secondary Progressions for September 23, 2025 |
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Sun | 29 Virgo 50 | 0 Libra 55 | 17 Capricorn 23 |
Moon | 14 Taurus 23 | 21 Libra 57 | 7 Aries 37 |
Mercury | 13 Virgo 34 | 9 Libra 13 | 24 Sagittarius 13 |
Venus | 14 Virgo 12 | 5 Virgo 7 | 28 Capricorn 21 |
Mars | 24 Scorpio 41 | 0 Scorpio 56 | 15 Aquarius 11 |
Jupiter | 13 Cancer 1 | 21 Cancer 31 | 9 Cancer 37 |
Saturn | 24 Leo 1 | 28 Pisces 12 | 28 Leo 13 |
Uranus | 24 Aquarius 24 | 1 Gemini 21 | 25 Aquarius 29 |
Neptune | 8 Leo 39 | 0 Aries 44 | 8 Leo 29 |
Pluto | 6 Cancer 36 | 1 Aquarius 27 | 5 Cancer 21 |
Rahu | 16 Sagittarius 57 | 17 Pisces 25 | 11 Sagittarius 18 |
Ketu | 16 Gemini 57 | 17 Virgo 25 | 11 Gemini 18 |
Chandra Kundali (Equal House, North Indian Diamond Chart)
