See also:

• SAMUEL

SAMUEL HEINRICH See also:

• SAMUEL HEINRICH SCHWABE (1789–1875)

SCHWABE (1789–1875)  , See also:

• GERMAN
• GERMAN, DUTCH AND SCANDINAVIAN

German astronomer, was See also:

• BORN, IGNAZ, EDLER VON (1742–1791)

born on the 25th of See also:

• OCTOBER

October 1789 at See also:

• DESSAU

Dessau, where he died on the 11th of See also:

• APRIL

April 1875 . At first an See also:

• APOTHECARY (from the Lat. apothecarius, a keeper of an apotheca, Gr. aroth is , a store)

apothecary, he turned his See also:

• ATTENTION (from Lat. ad-tendo, await, expect; the condition of being " stretched " or " tense ")

attention to See also:

• ASTRONOMY (from Gr. &arpov, a star, and v ,usiv, to classify or arrange)

astronomy, and in 1826 commenced his observations on See also:

• SUN
• SUN (0. Eng. sonne, Ger. sonne. Fr. soleil, Lat. sol, Gr. ijXior, from which comes helio- in various English compounds)

sun-spots . In 1843 he made the See also:

• SUGGESTION

suggestion of a probable ten See also:

• YEAR

year See also:

• PERIOD
• PERIOD (Gr. irepioSos, a going or way round, circuit, aepi, round, and &Sis, way, road)

period (i.e. that at every tenth year the number of spots reached a maximum), but it met with scant approval, and he continued his observations, which were afterwards utilized in 1851 by See also:

• HUMBOLDT, FRIEDRICH HEINRICH ALEXANDER, BARON
• HUMBOLDT, KARL WILHELM VON (1767-1835)

Humboldt in the third See also:

• VOLUME

volume of his Kosmos . The periodicity of sun-spots is now fully recognized (see SUN); and to See also:

• SCHWABE, SAMUEL HEINRICH (1789–1875)

Schwabe is thus due the See also:

• CREDIT (Lat. credere, to believe)

credit of one of the most important discoveries in astronomy . See H . H . See also:

• TURNER, CHARLES (1773–1857)
• TURNER, JOSEPH MALLORD WILLIAM (1775–1851)
• TURNER, NAT (1800-1831)
• TURNER, SHARON (1768-1847)
• TURNER, SIR JAMES (1615–1686)
• TURNER, WILLIAM (d. 1568)

Turner, Astronomical See also:

• DISCOVERY

Discovery (1904) .