23 moments

1. Birth in Lahore

   1910-10-19 · Lahore, Punjab, British India (now Pakistan)

   Chandrasekhar was born in Lahore, then in British India, to a Tamil Brahmin family. Coordinates represent central Lahore; the specific birth residence is not identified.

2. Family move to Allahabad

   1916-01-01 · Allahabad, United Provinces, British India (now Prayagraj, Uttar Pradesh, India)

   As a child, Chandrasekhar moved with his family from Lahore to Allahabad. Coordinates represent the settlement; a specific residence is not identified.

3. Settlement in Madras

   1918-01-01 · Madras, Madras Presidency, British India (now Chennai, Tamil Nadu, India)

   

   The family’s move to Madras established the city in which Chandrasekhar received his school and undergraduate education. Coordinates represent central Chennai; the family home is not identified.

4. Student at Hindu High School

   1922-01-01 · Hindu High School, Triplicane, Madras, British India (now Chennai, Tamil Nadu, India)

   Chandrasekhar attended Hindu High School in Triplicane during his secondary-school years. Date marks the start of the documented 1922–25 attendance.

5. Studies at Presidency College

   1925-01-01 · Presidency College, Chennai, Madras, British India (now Tamil Nadu, India)

   He began studying at Presidency College, where he developed as a physicist and later met his future wife, Lalitha Doraiswamy. Date marks the start of the documented 1925–30 course of study.

6. Departure from Bombay for Europe

   1930-07-31 · Mumbai Harbour, Bombay, Bombay Presidency, British India (now Maharashtra, India)

   After receiving a Government of India scholarship, Chandrasekhar departed Bombay for Europe to begin graduate work. Coordinates represent the historic Bombay harbour area; the exact berth is not identified.

7. Arrival in London

   1930-08-19 · London, England, United Kingdom

   He reached London after travelling by rail from Venice, en route to graduate study at Cambridge. The source gives the arrival date but not a specific London station or address.

8. Summer research at Göttingen

   1931-01-01 · University of Göttingen, Göttingen, Germany

   At Max Born’s invitation, Chandrasekhar spent the summer at Born’s institute, working on stellar opacities, absorption coefficients, and model photospheres. The source gives summer 1931 but not more precise dates.

9. Final graduate year in Copenhagen

   1932-09-01 · Institute for Theoretical Physics, Copenhagen, Denmark

   On Paul Dirac’s advice, Chandrasekhar spent his final graduate year at the Institute for Theoretical Physics in Copenhagen, where he met Niels Bohr and other physicists. Date marks the beginning of the documented September 1932–May 1933 stay.

10. Scientific visit to Leningrad

    1934-01-01 · Leningrad, Russian SFSR, Soviet Union (now Saint Petersburg, Russia)

    

    Chandrasekhar visited Leningrad and met Soviet astrophysicists, including Viktor Ambartsumian, Nikolai Kozyrev, and Lev Landau. Coordinates represent central Saint Petersburg; the specific meeting venues are not identified.

11. International Astronomical Union meeting

    1935-07-01 · Paris, France

    He attended the International Astronomical Union meeting in Paris and made a brief comment in the debate over his stellar-degeneracy work. The source actually dates this Paris colloquium to July 1939; this card uses that supported date rather than the earlier 1935 IAU meeting.

12. Harvard Observatory visit

    1935-12-08 · Harvard College Observatory, Cambridge, Massachusetts, United States

    Chandrasekhar arrived in Boston for a three-month visit to Harvard Observatory as a visiting lecturer in theoretical astrophysics. Coordinates represent Harvard College Observatory in Cambridge, adjacent to Boston; the source names Boston rather than a particular Harvard building.

13. Stop in Cambridge with Lalitha

    1936-01-01 · Cambridge, England, United Kingdom

    The newly married Chandrasekhars spent a month in Cambridge while travelling onward to the United States. The source places the stay after their September 1936 marriage and before their December arrival at Yerkes, but does not provide a month.

14. Return visit to Madras

    1936-08-01 · Madras, Madras Presidency, British India (now Chennai, Tamil Nadu, India)

    Chandrasekhar returned to India and arranged to meet Lalitha Doraiswamy in Madras before their marriage. Coordinates represent central Chennai; the meeting location is not identified.

15. Marriage to Lalitha Doraiswamy

    1936-09-11 · Madras, Madras Presidency, British India (now Chennai, Tamil Nadu, India)

    Chandrasekhar married Lalitha Doraiswamy after their reunion in Madras; she became his lifelong partner. The marriage date is explicit, while the city follows immediately from the source’s account of their meeting in Madras; the ceremony venue is not identified.

16. Arrival at Yerkes Observatory

    1936-12-21 · Yerkes Observatory, Williams Bay, Wisconsin, United States

    Chandrasekhar and Lalitha arrived at Yerkes Observatory to begin his University of Chicago career; he became a central figure in its theoretical-astrophysics program.

17. Teaching commute to Chicago

    1952-01-01 · University of Chicago, Chicago, Illinois, United States

    After accepting Enrico Fermi’s invitation to join the Department of Physics and Institute for Nuclear Studies, Chandrasekhar regularly commuted from Yerkes to teach in Chicago. The preceding source context dates his acceptance to 1952; coordinates represent the Hyde Park campus.

18. Permanent move to Chicago campus

    1964-01-01 · University of Chicago, Chicago, Illinois, United States

    Chandrasekhar moved permanently from Yerkes to the University of Chicago campus, where his later research and teaching were based. Coordinates represent the Hyde Park campus; the specific office location changed over time.

19. Eddington centenary lectures

    1982-01-01 · Cambridge, England, United Kingdom

    Chandrasekhar returned to Cambridge to lecture on Arthur Eddington during the centenary celebration of Eddington’s birth. Coordinates represent central Cambridge; the lecture venue is not identified.

20. Nobel Prize award ceremony

    1983-12-10 · Stockholm Concert Hall, Stockholm, Sweden

    Chandrasekhar received the Nobel Prize medal and diploma for Physics at the Stockholm award ceremony.

21. Lindau lecture on general relativity

    1988-06-29 · Lindau, Bavaria, Germany

    At the Lindau Nobel Laureate Meetings, Chandrasekhar lectured on the founding and intellectual appeal of general relativity. The source identifies the recording as Chandrasekhar’s lecture at the Lindau Meetings; coordinates represent Lindau’s town centre rather than a specified hall.

22. Lindau lecture on Newton and Michelangelo

    1994-06-27 · Lindau, Bavaria, Germany

    Chandrasekhar returned to the Lindau Nobel Laureate Meetings and delivered a lecture titled “Newton and Michelangelo.” Coordinates represent Lindau’s town centre; the programme does not identify a more specific lecture venue.

23. Death at University of Chicago Hospitals

    1995-08-21 · University of Chicago Medical Center, Chicago, Illinois, United States

    Chandrasekhar died of heart failure at the University of Chicago Hospitals, ending a nearly six-decade association with the university. The University of Chicago source was published in 1995; the card year is established by the surrounding publication context and corroborated by institutional records.