Which Happened First?

Heinrich Kreutz

Heinrich Kreutz
Image: Deutsches Museum · CC BY-SA 4.0 · source

Heinrich Carl Friedrich Kreutz was a German astronomer, most notable for his studies of the orbits of several sungrazing comets, which revealed that they were all related objects, produced when a very large Sun-grazing comet fragmented several hundred years previously.

Summary from Wikipedia (CC BY-SA 4.0) · Dates from Wikidata (CC0)

Who was born first?

Timeline

  1. Georg Michael Anton KerschensteinerJuly 29, 1854 – January 15, 1932
  2. Hans Carl Friedrich von MangoldtMay 18, 1854 – October 27, 1925
  3. Heinrich Kreutz (this page)September 8, 1854 – July 1907
  4. Hermann StruveOctober 3, 1854 – August 12, 1920
  5. Johannes RydbergNovember 8, 1854 – December 28, 1919
  6. Paul SabatierNovember 5, 1854 – August 14, 1941

Related

Play a round with Science · 19th century
Heinrich Kreutz (September 8, 1854 – July 1907) · Which Happened First?