Tatjana Pavlovna Ehrenfest, later known as Tanja van Aardenne-Ehrenfest, was a Dutch mathematician born on October 28, 1905, in Vienna. The daughter of famous physicists Paul Ehrenfest and Tatiana Afanàssieva, she was educated at home until 1917 and later attended the Gymnasium in Leiden. She studied mathematics and physics at Leiden University and earned her PhD there on December 8, 1931. Despite her academic achievements, she never held an academic position, but she made significant contributions to De Bruijn sequences, the discrepancy theorem, and the BEST theorem.
Zodiac Sign (Western)
Sunsign, Tropical Zodiac
Zodiac Sign (Vedic)
Moonsign, Sidereal Zodiac
Age (Today)
Your next birthday is 359 days away.
Death Anniversary
Next death anniversary is 26 days away.
Death Date
Place of Birth
Time Zone - Europe/Vienna (1:0 E)
Chinese Zodiac Sign
Birth Number
Life Path Number
Name Number (Chaldean)
Name Number (Pythagorean)
Meaning of the name - Tatyana
The name Tatyana is derived from the Greek word "Tatiana", meaning "organizer" or "arranger". It is also associated with the Christian saint, Saint Tatiana, who is the patron saint of students.
Read Full Tatyana Name AnalysisOctober 28, 1905 Facts
Generation Group
Tatyana Pavlovna Ehrenfest belongs to the GI Generation group.
Place of Birth: Vienna
Place of Death: Dordrecht
Educated At: Stedelijk Gymnasium Leiden | Leiden University
Occupation: mathematician
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 October 28, 1905
Note: Moon position is location and time sensitive.| Planet | Position (Tropical, Western) | Transits on October 28, 2025 | Secondary Progressions for October 28, 2025 |
|---|---|---|---|
| Sun | 4 Scorpio 22 | 5 Scorpio 16 | 5 Pisces 57 |
| Moon | 6 Scorpio 44 | 21 Capricorn 17 | 0 Aries 34 |
| Mercury | 14 Scorpio 33 | 28 Scorpio 57 | 9 Pisces 54 |
| Venus | 8 Libra 16 | 18 Libra 8 | 8 Pisces 39 |
| Mars | 14 Capricorn 36 | 24 Scorpio 57 | 15 Aries 18 |
| Jupiter | 4 Gemini 26 | 24 Cancer 50 | 28 Taurus 11 |
| Saturn | 26 Aquarius 41 | 25 Pisces 51 | 5 Pisces 55 |
| Uranus | 1 Capricorn 11 | 0 Gemini 25 | 7 Capricorn 31 |
| Neptune | 10 Cancer 22 | 29 Pisces 51 | 7 Cancer 45 |
| Pluto | 22 Gemini 32 | 1 Aquarius 24 | 20 Gemini 44 |
| Rahu | 26 Leo 33 | 15 Pisces 35 | 20 Leo 11 |
| Ketu | 26 Aquarius 33 | 15 Virgo 35 | 20 Aquarius 11 |
Chandra Kundali (Equal House, North Indian Diamond Chart)