Dante Secchi died in 1981.
Dante Secchi was born in 1910.
Serafino Secchi died in 1628.
Yesterday I measured Secchi disk transparency and compared that with simultaneous photometer measurements in a subtropical estuary. The lower border of the photic zone (1% of surface irradiance) according to my YSI photometer was at a depth of 4.7 m , while Secchi reading was at 1.6 m. Multiplying 1.6 by 2 gives 3.2, which is significantly lower than 4.7 m. Before that observation I believed in the "double-Secchi rule".
Giuseppe Secchi was born on 1931-04-06.
Niccolo Secchi has written: 'Gl'inganni comedia'
Angelo Secchi was born on 1818-06-29.
Antonio Secchi died on June 7, 2013.
Angelo Secchi died on 1878-02-26.
Secchi - 2013 is rated/received certificates of: Sweden:Btl
Antonio Secchi was born on February 26, 1924, in Genoa, Liguria, Italy.
Luciano Secchi was born on August 24, 1939, in Milan, Lombardy, Italy.