John Tasker Henderson was a prominent Canadian physicist born on December 9, 1905, who made significant contributions to radar technology and radio signal research. His education at McGill University and in London paved the way for his career at the National Research Council (NRC) beginning in 1933. During World War II, he took a leading role in secret radar development, establishing Canada's foundation in this field. After serving in the Royal Canadian Air Force and in diplomatic roles, he returned to the NRC, where he oversaw the creation of cesium atomic clocks until his retirement.
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Age (Today)
Your next birthday is 329 days away.
Death Anniversary
Next death anniversary is 11 days away.
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Place of Birth
Time Zone - America/Montreal (5:0 W)
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Meaning of the name - John
God is gracious
Read Full John Name AnalysisDecember 9, 1905 Facts
Generation Group
John Tasker Henderson belongs to the GI Generation group.
Place of Birth: Montreal
Place of Death: Perth
Educated At: King's College London | McGill University | Technical University of Munich
Occupation: physicist
Employers: National Research Council Canada
Awards Received: Fellow of the Royal Society of Canada
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 December 9, 1905
Note: Moon position is location and time sensitive.| Planet | Position (Tropical, Western) | Transits on December 9, 2025 | Secondary Progressions for December 9, 2025 |
|---|---|---|---|
| Sun | 16 Sagittarius 59 | 17 Sagittarius 52 | 17 Aries 57 |
| Moon | 21 Taurus 47 | 21 Leo 57 | 10 Libra 16 |
| Mercury | 0 Capricorn 13 | 27 Scorpio 22 | 11 Aries 43 |
| Venus | 1 Sagittarius 1 | 11 Sagittarius 9 | 1 Taurus 12 |
| Mars | 16 Aquarius 19 | 25 Sagittarius 47 | 15 Taurus 58 |
| Jupiter | 29 Taurus 3 | 23 Cancer 53 | 4 Gemini 47 |
| Saturn | 27 Aquarius 57 | 25 Pisces 11 | 10 Pisces 49 |
| Uranus | 3 Capricorn 19 | 28 Taurus 42 | 8 Capricorn 26 |
| Neptune | 9 Cancer 37 | 29 Pisces 21 | 7 Cancer 44 |
| Pluto | 21 Gemini 49 | 2 Aquarius 6 | 20 Gemini 56 |
| Rahu | 24 Leo 18 | 13 Pisces 20 | 17 Leo 57 |
| Ketu | 24 Aquarius 18 | 13 Virgo 20 | 17 Aquarius 57 |
Chandra Kundali (Equal House, North Indian Diamond Chart)
