Michael T. Ghiselin is an American biologist, philosopher, and historian of biology born in Salt Lake City on May 13, 1939. He is a member of the California Academy of Sciences and has extensively studied Charles Darwin, publishing works about him. Ghiselin's research focuses on the fundamental units of biology, such as species and taxon, and their influence on evolutionary thinking and sex allocation theory.
Zodiac Sign (Western)
Sunsign, Tropical Zodiac
Zodiac Sign (Vedic)
Moonsign, Sidereal Zodiac
Age (Today)
Your next birthday is 342 days away.
Place of Birth
Time Zone - America/Denver (7:0 W)
Chinese Zodiac Sign
Birth Number
Life Path Number
Name Number (Chaldean)
Name Number (Pythagorean)
Meaning of the name - Michael
Who is like God?
Read Full Michael Name AnalysisMay 13, 1939 Facts
Generation Group
Michael Ghiselin belongs to the Silent Generation group.
Place of Birth: Salt Lake City
Educated At: University of Utah | Stanford University
Occupation: philosopher | university teacher | biologist
Employers: Utah State University | University of California, Berkeley | University of Utah | Harvard University
Awards Received: Pfizer Award | MacArthur Fellows Program | Guggenheim Fellowship
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 13, 1939
Note: Moon position is location and time sensitive.| Planet | Position (Tropical, Western) | Transits on May 13, 2026 | Secondary Progressions for May 13, 2026 |
|---|---|---|---|
| Sun | 22 Taurus 6 | 23 Taurus 2 | 15 Leo 19 |
| Moon | 17 Pisces 47 | 10 Aries 58 | 19 Taurus 57 |
| Mercury | 28 Aries 49 | 22 Taurus 3 | 18 Leo 37 |
| Venus | 21 Aries 48 | 23 Gemini 43 | 7 Leo 38 |
| Mars | 26 Capricorn 8 | 26 Aries 7 | 25 Capricorn 28 |
| Jupiter | 0 Aries 23 | 20 Cancer 52 | 8 Aries 34 |
| Saturn | 25 Aries 5 | 10 Aries 25 | 1 Taurus 23 |
| Uranus | 18 Taurus 6 | 1 Gemini 1 | 21 Taurus 49 |
| Neptune | 20 Virgo 38 | 3 Aries 38 | 21 Virgo 42 |
| Pluto | 29 Cancer 26 | 5 Aquarius 29 | 1 Leo 29 |
| Rahu | 7 Scorpio 50 | 5 Pisces 8 | 3 Scorpio 14 |
| Ketu | 7 Taurus 50 | 5 Virgo 8 | 3 Taurus 14 |
Chandra Kundali (Equal House, North Indian Diamond Chart)
Astrology Transits Analysis for Year 2026
Michael Ghiselin's 2026 Transits to Natal Planets
- Mars square Mercury
Exact: 21 January, 2026 - Jupiter trine Moon
Exact: 21 January, 2026 - Mars square Sun
Exact: 20 February, 2026 - Saturn conjunction Jupiter
Exact: 20 February, 2026 - Mars conjunction Jupiter
Exact: 11 April, 2026 - Jupiter trine Moon
Exact: 01 May, 2026 - Mars conjunction Saturn
Exact: 11 May, 2026 - Jupiter opposition Mars
Exact: 10 June, 2026 - Jupiter trine Jupiter
Exact: 30 June, 2026 - Jupiter trine Venus
Exact: 18 October, 2026 - Jupiter trine Saturn
Exact: 17 November, 2026 - Mars aspects Jupiter
Exact: 27 November, 2026
