Ib Madsen, born on April 12, 1942, in Copenhagen, is a Danish mathematician who has been a professor of mathematics at the University of Copenhagen since 2008. He earned his cand.scient. degree from the University of Copenhagen in 1965 and his PhD from the University of Chicago in 1970. Prior to his current position, he was a professor at Aarhus University from 1983 to 2008. Madsen's primary research interests lie in algebraic and geometric topology, notably proving Mumford's conjecture with Michael Weiss in 2002. He is a member of the Royal Swedish Academy of Sciences.
Zodiac Sign (Western)
Sunsign, Tropical Zodiac
Zodiac Sign (Vedic)
Moonsign, Sidereal Zodiac
Age (Today)
Your next birthday is 297 days away.
Place of Birth
Time Zone - Europe/Copenhagen (2:0 E)
Chinese Zodiac Sign
Birth Number
Life Path Number
Name Number (Chaldean)
Name Number (Pythagorean)
April 12, 1942 Facts
Generation Group
Ib Madsen belongs to the Silent Generation group.
Place of Birth: Copenhagen
Educated At: University of Copenhagen | University of Chicago
Occupation: university teacher | mathematician
Employers: Aarhus University | University of Copenhagen
Awards Received: Fellow of the American Mathematical Society | Ostrowski Prize
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 12, 1942
Note: Moon position is location and time sensitive.Planet | Position (Tropical, Western) | Transits on April 12, 2025 | Secondary Progressions for April 12, 2025 |
---|---|---|---|
Sun | 21 Aries 52 | 22 Aries 45 | 11 Cancer 47 |
Moon | 14 Pisces 27 | 16 Libra 8 | 0 Aries 30 |
Mercury | 13 Aries 20 | 27 Pisces 53 | 20 Gemini 48 |
Venus | 5 Pisces 33 | 24 Pisces 39 | 7 Gemini 38 |
Mars | 21 Gemini 36 | 27 Cancer 42 | 12 Leo 33 |
Jupiter | 17 Gemini 40 | 17 Gemini 52 | 5 Cancer 20 |
Saturn | 27 Taurus 1 | 25 Pisces 45 | 7 Gemini 21 |
Uranus | 28 Taurus 13 | 25 Taurus 20 | 2 Gemini 48 |
Neptune | 27 Virgo 53 | 0 Aries 28 | 27 Virgo 17 |
Pluto | 3 Leo 28 | 3 Aquarius 42 | 4 Leo 40 |
Rahu | 11 Virgo 28 | 26 Pisces 7 | 7 Virgo 4 |
Ketu | 11 Pisces 28 | 26 Virgo 7 | 7 Pisces 4 |
Chandra Kundali (Equal House, North Indian Diamond Chart)

Astrology Transits Analysis for Year 2025
Note: Multiple transits occurring in close proximity often signify a major event in a person's life.Ib Madsen's 2025 Transits to Natal Planets
- Saturn conjunction Moon
Exact: 11 January, 2025 - Jupiter conjunction Jupiter
Exact: 11 April, 2025 - Saturn sextile Saturn
Exact: 01 May, 2025 - Mars aspects Venus
Exact: 01 May, 2025 - Jupiter conjunction Mars
Exact: 01 May, 2025 - Mars aspects Moon
Exact: 21 May, 2025 - Mars aspects Mercury
Exact: 10 July, 2025 - Jupiter trine Venus
Exact: 10 July, 2025 - Jupiter trine Ketu
Exact: 30 July, 2025 - Jupiter trine Moon
Exact: 19 August, 2025 - Mars opposition Mercury
Exact: 29 August, 2025 - Mars aspects Saturn
Exact: 18 September, 2025 - Saturn sextile Saturn
Exact: 28 September, 2025 - Mars aspects Jupiter
Exact: 18 October, 2025 - Rahu conjunction Moon
Exact: 07 November, 2025