Struve family

meridian arc from Hammerfest in Norway to the Black Sea

Baltic German astronomer (1793–1864)

Baltic German astronomer (1897–1963)

Baltic German astronomer (1819–1905)

asteroid

Russian journalist (1870–1944)

Baltic German astronomer (1854–1920)

German revolutionary and journalist (1805-1870)

Russian orientalist (1889-1965)

lunar impact crater

Baltic German astronomer (1858-1920)

Struvite (magnesium ammonium phosphate) is a phosphate mineral with formula: NH4MgPO4·6H2O. Struvite crystallizes in the orthorhombic system as white to yellowish or brownish-white pyramidal crystals or in platy mica-like forms. It is a soft mineral with Mohs hardness of 1.5 to 2 and has a low specific gravity of 1.7. It is sparingly soluble in neutral and alkaline conditions, but readily soluble in acid.

mathmatical function

German mathematician (1755-1841)

Russian general (1835-1898)

family

Russian-German astronomer (1886-1933)

poet, literary historian, editor (1898–1985)

Baltic German diplomat (1835-1907)

Baltic German chemist (1822-1908)

phenomenon in astronomical spectroscopy, named after Otto Struve and Jorge Sahade