Rudolf Jonas was a prominent German marine aquarist born on July 23, 1907, in Liberec. After World War II, he moved to Stralsund, where he contributed to the establishment of the local natural history museum. As a self-taught individual, he became the head of the aquarium, actively participating in numerous expeditions to collect marine species. In 1956, he co-developed a seawater aquarium concept, which opened in 1957 as the first of its kind in East Germany. His extensive knowledge of marine fauna made him a respected expert in marine aquaristics beyond East Germany.
Zodiac Sign (Western)
Sunsign, Tropical Zodiac
Zodiac Sign (Vedic)
Moonsign, Sidereal Zodiac
Age (Today)
Your next birthday is 357 days away.
Death Anniversary
Next death anniversary is 188 days away.
Death Date
Place of Birth
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Chinese Zodiac Sign
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Name Number (Chaldean)
Name Number (Pythagorean)
Meaning of the name - Rudolf
famous wolf
Read Full Rudolf Name AnalysisJuly 23, 1907 Facts
Generation Group
Rudolf Jonas belongs to the GI Generation group.
Place of Death: Stralsund
Occupation: marine biologist
Employers: Naturkundemuseum (Deutsches Meeresmuseum)
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 July 23, 1907
Note: Moon position is location and time sensitive.Planet | Position (Tropical, Western) | Transits on July 23, 2025 | Secondary Progressions for July 23, 2025 |
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Sun | 29 Cancer 40 | 1 Leo 5 | 25 Scorpio 13 |
Moon | 8 Capricorn 43 | 16 Cancer 48 | 9 Taurus 56 |
Mercury | 2 Leo 2 | 14 Leo 21 | 15 Scorpio 57 |
Venus | 15 Cancer 11 | 21 Gemini 25 | 11 Sagittarius 46 |
Mars | 8 Capricorn 46 | 21 Virgo 14 | 22 Aquarius 52 |
Jupiter | 24 Cancer 4 | 9 Cancer 55 | 13 Leo 8 |
Saturn | 27 Pisces 47 | 1 Aries 43 | 21 Pisces 13 |
Uranus | 9 Capricorn 54 | 0 Gemini 40 | 10 Capricorn 12 |
Neptune | 13 Cancer 2 | 2 Aries 4 | 14 Cancer 38 |
Pluto | 24 Gemini 7 | 2 Aquarius 37 | 24 Gemini 19 |
Rahu | 23 Cancer 1 | 20 Pisces 42 | 16 Cancer 46 |
Ketu | 23 Capricorn 1 | 20 Virgo 42 | 16 Capricorn 46 |
Chandra Kundali (Equal House, North Indian Diamond Chart)
