Donald Holroyde Hey (12 September 1904 – 21 January 1987) was a Welsh organic chemist known for discovering free radicals in solution. Born, raised, and educated in Swansea, he later moved to Manchester and then London for further studies. Hey discussed his famous theory that benzoyl peroxide generates free radicals (phenyl radicals) during decomposition in a paper he published in 1934. However, the paper and the idea went unacknowledged for another twenty years.
Zodiac Sign (Western)
Sunsign, Tropical Zodiac
Zodiac Sign (Vedic)
Moonsign, Sidereal Zodiac
Age (Today)
Your next birthday is 328 days away.
Death Anniversary
Next death anniversary is 270 days away.
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Place of Birth
Time Zone - Europe/London (0:0 W)
Chinese Zodiac Sign
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Meaning of the name - Donald
world ruler, ruler of men
Read Full Donald Name AnalysisSeptember 12, 1904 Facts
Generation Group
Donald Holroyde Hey belongs to the GI Generation group.
Place of Birth: Swansea
Educated At: Coleg y Brenin
Occupation: chemist
Awards Received: Tilden Prize | Fellow of the Royal Society
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 12, 1904
Note: Moon position is location and time sensitive.| Planet | Position (Tropical, Western) | Transits on September 12, 2025 | Secondary Progressions for September 12, 2025 |
|---|---|---|---|
| Sun | 19 Virgo 16 | 19 Virgo 59 | 20 Capricorn 38 |
| Moon | 26 Libra 15 | 24 Taurus 2 | 25 Pisces 19 |
| Mercury | 26 Virgo 27 | 19 Virgo 7 | 0 Capricorn 52 |
| Venus | 7 Libra 19 | 21 Leo 26 | 4 Pisces 31 |
| Mars | 18 Leo 5 | 23 Libra 27 | 28 Libra 50 |
| Jupiter | 28 Aries 57 | 19 Cancer 50 | 21 Aries 8 |
| Saturn | 15 Aquarius 55 | 29 Pisces 4 | 20 Aquarius 6 |
| Uranus | 25 Sagittarius 55 | 1 Gemini 28 | 1 Capricorn 16 |
| Neptune | 7 Cancer 58 | 1 Aries 3 | 6 Cancer 24 |
| Pluto | 21 Gemini 43 | 1 Aquarius 35 | 20 Gemini 10 |
| Rahu | 18 Virgo 18 | 18 Pisces 1 | 11 Virgo 54 |
| Ketu | 18 Pisces 18 | 18 Virgo 1 | 11 Pisces 54 |
Chandra Kundali (Equal House, North Indian Diamond Chart)
