John Hannes Callomon was a British paleontologist and chemist, born on April 7, 1928, in Berlin. He was regarded as one of the leading experts in ammonites, specifically from the Jurassic period. His contributions to the field positioned him as a prominent figure in the study of these ancient marine cephalopods. Callomon's expertise and research have greatly enhanced the understanding of ammonite diversity and their significance within the fossil record. He passed away on April 1, 2010.
Zodiac Sign (Western)
Sunsign, Tropical Zodiac
Zodiac Sign (Vedic)
Moonsign, Sidereal Zodiac
Age (Today)
Your next birthday is 212 days away.
Death Anniversary
Next death anniversary is 158 days away.
Death Date
Place of Birth
Time Zone - Europe/Berlin (1:0 E)
Chinese Zodiac Sign
Birth Number
Life Path Number
Name Number (Chaldean)
Name Number (Pythagorean)
Meaning of the name - John
God is gracious
Read Full John Name AnalysisApril 7, 1928 Facts
Generation Group
John Callomon belongs to the Silent Generation group.
Place of Birth: Berlin
Occupation: paleontologist | university teacher | chemist
Employers: University College London
Awards Received: Steno Medal
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 7, 1928
Note: Moon position is location and time sensitive.Planet | Position (Tropical, Western) | Transits on April 7, 2025 | Secondary Progressions for April 7, 2025 |
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Sun | 17 Aries 23 | 17 Aries 53 | 20 Cancer 46 |
Moon | 12 Scorpio 33 | 16 Leo 13 | 29 Taurus 57 |
Mercury | 24 Pisces 19 | 26 Pisces 50 | 3 Cancer 34 |
Venus | 24 Pisces 58 | 25 Pisces 16 | 24 Cancer 3 |
Mars | 29 Aquarius 54 | 25 Cancer 50 | 12 Taurus 7 |
Jupiter | 16 Aries 43 | 17 Gemini 1 | 6 Taurus 51 |
Saturn | 19 Sagittarius 26 | 25 Pisces 10 | 13 Sagittarius 50 |
Uranus | 4 Aries 10 | 25 Taurus 5 | 7 Aries 23 |
Neptune | 26 Leo 38 | 0 Aries 17 | 27 Leo 32 |
Pluto | 15 Cancer 0 | 3 Aquarius 38 | 16 Cancer 48 |
Rahu | 12 Gemini 29 | 26 Pisces 23 | 7 Gemini 21 |
Ketu | 12 Sagittarius 29 | 26 Virgo 23 | 7 Sagittarius 21 |
Chandra Kundali (Equal House, North Indian Diamond Chart)
