David Wayne Greenfield is an American ichthyologist, marine biologist, ecologist, zoogeographer, and professor. Born on April 21, 1940, in Carmel, California, he has made significant contributions to the fields of ichthyology and marine biology. His work encompasses ecological studies and the distribution of aquatic life, contributing to a deeper understanding of marine ecosystems. Through his academic role, Greenfield has influenced the education of future generations in these fields.
Zodiac Sign (Western)
Sunsign, Tropical Zodiac
Zodiac Sign (Vedic)
Moonsign, Sidereal Zodiac
Age (Today)
Your next birthday is 321 days away.
Place of Birth
Time Zone -
Chinese Zodiac Sign
Birth Number
Life Path Number
Name Number (Chaldean)
Name Number (Pythagorean)
Meaning of the name - David
beloved, friend
Read Full David Name AnalysisApril 21, 1940 Facts
Generation Group
David W. Greenfield belongs to the Silent Generation group.
Place of Birth: Carmel, California
Occupation: ichthyologist
Spouses: Teresa A. Greenfield
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 21, 1940
Note: Moon position is location and time sensitive.| Planet | Position (Tropical, Western) | Transits on April 21, 2026 | Secondary Progressions for April 21, 2026 |
|---|---|---|---|
| Sun | 1 Taurus 25 | 1 Taurus 36 | 23 Cancer 58 |
| Moon | 24 Libra 47 | 29 Gemini 59 | 20 Sagittarius 49 |
| Mercury | 5 Aries 45 | 9 Aries 53 | 2 Leo 49 |
| Venus | 16 Gemini 58 | 27 Taurus 0 | 26 Gemini 50 |
| Mars | 13 Gemini 8 | 9 Aries 13 | 8 Leo 26 |
| Jupiter | 24 Aries 9 | 17 Cancer 43 | 11 Taurus 48 |
| Saturn | 4 Taurus 8 | 7 Aries 58 | 13 Taurus 29 |
| Uranus | 20 Taurus 48 | 29 Taurus 47 | 25 Taurus 17 |
| Neptune | 23 Virgo 11 | 2 Aries 57 | 23 Virgo 13 |
| Pluto | 0 Leo 38 | 5 Aquarius 27 | 2 Leo 14 |
| Rahu | 19 Libra 38 | 6 Pisces 18 | 15 Libra 4 |
| Ketu | 19 Aries 38 | 6 Virgo 18 | 15 Aries 4 |
Chandra Kundali (Equal House, North Indian Diamond Chart)
Astrology Transits Analysis for Year 2026
David W. Greenfield's 2026 Transits to Natal Planets
- Mars square Ketu
Exact: 11 January, 2026 - Saturn conjunction Mercury
Exact: 11 April, 2026 - Mars conjunction Jupiter
Exact: 11 May, 2026 - Mars opposition Moon
Exact: 11 May, 2026 - Mars conjunction Sun
Exact: 21 May, 2026 - Saturn sextile Mars
Exact: 30 June, 2026 - Jupiter trine Mercury
Exact: 30 July, 2026 - Mars square Moon
Exact: 18 September, 2026 - Jupiter trine Ketu
Exact: 08 October, 2026 - Jupiter trine Jupiter
Exact: 07 November, 2026 - Mars aspects Mercury
Exact: 17 December, 2026
