S2 Spectroscopic Orbit
Uses precision spectroscopy and astrometry of S2 to improve measurements of the compact mass associated with Sagittarius A*.
Historical biography archive · Updated 2026-11-03
Frank Eisenhauer Biography and Timeline
Follow Frank Eisenhauer through 2 dated historical records for Germany.
Frank Eisenhauer, historical timeline
A chronological timeline drawn from matching World History Database records.
2Distinct records
1 of 1Page
2005–2018Years on this page
2005
2018
S2 Gravitational Redshift
As a leading GRAVITY scientist, helps measure gravitational redshift in S2 during its close passage around Sagittarius A*, testing general relativity near a supermassive black hole.
Records, sources and methodology
These dates and descriptions come from the historical_events database. Exact duplicate records have been collapsed. Names are grouped by the country, Name 2 and Name 1 fields; records with missing Name 2 cannot be reliably assigned to an individual biography. Check the underlying sources before formal citation.