Jacobus Richardus (Jaap) Callenbach was a Dutch pianist born in Rotterdam on September 16, 1904. He graduated cum laude from the predecessor of the Rotterdam Conservatory in 1925 and studied further in Paris, Frankfurt, and Leipzig. Callenbach was also a music pedagogue, teaching at various conservatories including Rotterdam and Amsterdam. He had notable students such as Louis van Dijk. He played concerts throughout the Netherlands and published a work on piano methodology in the 1940s. He passed away on June 3, 1975, in Arnhem.
Zodiac Sign (Western)
Sunsign, Tropical Zodiac
Zodiac Sign (Vedic)
Moonsign, Sidereal Zodiac
Age (Today)
Your next birthday is 337 days away.
Death Anniversary
Next death anniversary is 132 days away.
Death Date
Place of Birth
Time Zone -
Chinese Zodiac Sign
Birth Number
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Name Number (Chaldean)
Name Number (Pythagorean)
Meaning of the name - Jaap
The name Jaap is a Dutch diminutive of the name Jacob, which means 'supplanter' or 'he who holds by the heel'.
Read Full Jaap Name AnalysisSeptember 16, 1904 Facts
Generation Group
Jaap Callenbach belongs to the GI Generation group.
Place of Birth: Rotterdam
Place of Death: Arnhem
Educated At: Rotterdams Conservatorium | Conservatorium van Parijs | Frankfurt am Main | Leipzig
Occupation: pianist
Spouses: Anna Geertruida van Aken
Employers: Conservatorium te Rotterdam | Tilburg | Amsterdam | Arnhem
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 16, 1904
Note: Moon position is location and time sensitive.Planet | Position (Tropical, Western) | Transits on September 16, 2025 | Secondary Progressions for September 16, 2025 |
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Sun | 23 Virgo 22 | 24 Virgo 5 | 24 Capricorn 55 |
Moon | 24 Sagittarius 26 | 22 Cancer 59 | 15 Taurus 33 |
Mercury | 22 Virgo 9 | 26 Virgo 55 | 2 Capricorn 3 |
Venus | 12 Libra 31 | 26 Leo 34 | 9 Pisces 22 |
Mars | 20 Leo 44 | 26 Libra 15 | 0 Scorpio 56 |
Jupiter | 28 Aries 37 | 20 Cancer 30 | 21 Aries 32 |
Saturn | 15 Aquarius 42 | 28 Pisces 44 | 20 Aquarius 34 |
Uranus | 25 Sagittarius 57 | 1 Gemini 26 | 1 Capricorn 30 |
Neptune | 8 Cancer 1 | 0 Aries 56 | 6 Cancer 18 |
Pluto | 21 Gemini 43 | 1 Aquarius 31 | 20 Gemini 6 |
Rahu | 18 Virgo 5 | 17 Pisces 47 | 11 Virgo 40 |
Ketu | 18 Pisces 5 | 17 Virgo 47 | 11 Pisces 40 |
Chandra Kundali (Equal House, North Indian Diamond Chart)
