Rösch, Siegfried

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Rösch, Siegfried Gender: M
born on 15 June 1899 at 11:00 (= 11:00 AM )
Place Ludwigshafen, Germany, 49n29, 8e26
Timezone MET h1e (is standard time)
Data source
Quoted BC/BR
Rodden Rating AA
Collector: Gauquelin
Astrology data s_su.18.gif s_gemcol.18.gif 24°03' s_mo.18.gif s_vircol.18.gif 13°00 Asc.s_vircol.18.gif 09°44'

Siegfried Rösch
photo: Dr. Heinrich Rösch, license cc-by-sa-3.0-de


German mineralogist and colour theorist who became known for adding the colour body to the CIE system. He also worked in mathematics, sundials, archiving, photography, harmony and genealogy.

From 1933 he was a scientific employee of the company Leitz in Wetzlar, where he was involved in the development of the famous 35mm Leica camera.

He died on 22 January 1984 in Wetzlar, aged 84.

Link to Wikipedia biography (German)


Source Notes

Archives Gauquelin: Scientists & Medical Doctors (Hommes De Science) A, vol. 2, #3356 [1].


  • Vocation : Art : Photography
  • Vocation : Humanities+Social Sciences : Historian (Genealogist)
  • Vocation : Science : Geology (Mineralogist)
  • Vocation : Science : Mathematics/ Statistics