J. John Sepkoski Jr. was an influential American paleontologist at the University of Chicago, known for applying statistical methods to fossil records and studying mass extinction patterns. He collaborated with David M. Raup on the periodicity of extinctions theory, particularly the 'Nemesis' hypothesis. Sepkoski also worked with prominent paleontologist Stephen J. Gould and conducted significant research on marine taxonomic diversity throughout the Phanerozoic era, contributing to a better understanding of evolutionary biology and the historical patterns of biodiversity.
Zodiac Sign (Western)
Sunsign, Tropical Zodiac
Zodiac Sign (Vedic)
Moonsign, Sidereal Zodiac
Age (Today)
Your next birthday is 346 days away.
Death Anniversary
Next death anniversary is 104 days away.
Death Date
Place of Birth
Time Zone - America/New_York (4:0 W)
Chinese Zodiac Sign
Birth Number
Life Path Number
Name Number (Chaldean)
Name Number (Pythagorean)
Meaning of the name - Jack
supplanter, he who holds by the heel
Read Full Jack Name AnalysisJuly 26, 1948 Facts
Generation Group
Jack Sepkoski belongs to the Baby Boomers group.
Place of Birth: Presque Isle
Place of Death: Chicago
Educated At: University of Notre Dame | Harvard University
Occupation: paleontologist | university teacher
Employers: University of Rochester | University of Chicago
Awards Received: Charles Schuchert 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 July 26, 1948
Note: Moon position is location and time sensitive.| Planet | Position (Tropical, Western) | Transits on July 26, 2025 | Secondary Progressions for July 26, 2025 |
|---|---|---|---|
| Sun | 3 Leo 32 | 3 Leo 55 | 18 Libra 14 |
| Moon | 4 Aries 26 | 27 Leo 15 | 7 Aquarius 48 |
| Mercury | 17 Cancer 2 | 12 Leo 46 | 4 Scorpio 35 |
| Venus | 26 Gemini 36 | 24 Gemini 49 | 5 Virgo 52 |
| Mars | 5 Libra 33 | 23 Virgo 2 | 26 Scorpio 2 |
| Jupiter | 19 Sagittarius 37 | 10 Cancer 34 | 23 Sagittarius 37 |
| Saturn | 23 Leo 37 | 1 Aries 40 | 2 Virgo 56 |
| Uranus | 28 Gemini 33 | 0 Gemini 46 | 0 Cancer 35 |
| Neptune | 10 Libra 32 | 2 Aries 2 | 12 Libra 56 |
| Pluto | 14 Leo 13 | 2 Aquarius 32 | 16 Leo 14 |
| Rahu | 9 Taurus 49 | 20 Pisces 33 | 5 Taurus 44 |
| Ketu | 9 Scorpio 49 | 20 Virgo 33 | 5 Scorpio 44 |
Chandra Kundali (Equal House, North Indian Diamond Chart)
