Robert Bieri, born on January 31, 1945, in Zurich, is a Swiss mathematician and emeritus professor at Goethe University Frankfurt. Since 2010, he has been a visiting professor at Binghamton University. Bieri earned his doctorate in 1972 under Beno Eckmann at ETH Zurich, focusing on groups with Poincaré duality. His research incorporates geometric, topological, and homological methods in group theory, including introducing Poincaré duality concepts and developing the Bieri-Neumann-Strebel invariant for metabelian groups.
Zodiac Sign (Western)
Sunsign, Tropical Zodiac
Zodiac Sign (Vedic)
Moonsign, Sidereal Zodiac
Age (Today)
Your next birthday is 231 days away.
Place of Birth
Time Zone -
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Meaning of the name - Robert
bright fame, shining glory
Read Full Robert Name AnalysisJanuary 31, 1945 Facts
Generation Group
Robert Bieri belongs to the Silent Generation group.
Place of Birth: Zürich
Educated At: ETH Zurich
Occupation: mathematician
Employers: Goethe University Frankfurt
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 January 31, 1945
Note: Moon position is location and time sensitive.| Planet | Position (Tropical, Western) | Transits on January 31, 2026 | Secondary Progressions for January 31, 2026 |
|---|---|---|---|
| Sun | 11 Aquarius 29 | 11 Aquarius 50 | 2 Taurus 12 |
| Moon | 20 Virgo 5 | 25 Cancer 48 | 10 Virgo 27 |
| Mercury | 22 Capricorn 59 | 18 Aquarius 58 | 17 Aries 40 |
| Venus | 28 Pisces 20 | 17 Aquarius 49 | 21 Aries 10 |
| Mars | 19 Capricorn 32 | 6 Aquarius 30 | 22 Pisces 11 |
| Jupiter | 26 Virgo 42 | 17 Cancer 24 | 18 Virgo 3 |
| Saturn | 5 Cancer 13 | 28 Pisces 31 | 6 Cancer 13 |
| Uranus | 9 Gemini 12 | 27 Taurus 28 | 10 Gemini 52 |
| Neptune | 6 Libra 17 | 0 Aries 7 | 4 Libra 21 |
| Pluto | 9 Leo 2 | 3 Aquarius 41 | 7 Leo 54 |
| Rahu | 17 Cancer 10 | 10 Pisces 32 | 12 Cancer 53 |
| Ketu | 17 Capricorn 10 | 10 Virgo 32 | 12 Capricorn 53 |
Chandra Kundali (Equal House, North Indian Diamond Chart)
Astrology Transits Analysis for Year 2026
Robert Bieri's 2026 Transits to Natal Planets
- Jupiter opposition Mars
Exact: 11 January, 2026 - Saturn opposition Jupiter
Exact: 21 January, 2026 - Jupiter conjunction Rahu
Exact: 31 January, 2026 - Jupiter opposition Ketu
Exact: 31 January, 2026 - Saturn conjunction Venus
Exact: 31 January, 2026 - Jupiter conjunction Rahu
Exact: 21 April, 2026 - Jupiter opposition Ketu
Exact: 21 April, 2026 - Mars square Rahu
Exact: 01 May, 2026 - Jupiter opposition Mars
Exact: 11 May, 2026 - Jupiter opposition Mercury
Exact: 31 May, 2026 - Jupiter trine Venus
Exact: 20 June, 2026 - Mars conjunction Saturn
Exact: 19 August, 2026 - Jupiter opposition Sun
Exact: 19 August, 2026 - Mars aspects Sun
Exact: 29 August, 2026 - Mars conjunction Rahu
Exact: 08 September, 2026 - Mars opposition Ketu
Exact: 08 September, 2026 - Mars opposition Sun
Exact: 18 October, 2026
