See also:- PETER
- PETER (Lat. Petrus from Gr. irfpos, a rock, Ital. Pietro, Piero, Pier, Fr. Pierre, Span. Pedro, Ger. Peter, Russ. Petr)
- PETER (PEDRO)
- PETER, EPISTLES OF
- PETER, ST
PETER ANDREAS See also:HANSEN (1795-1874)
, Danish astronomer, was See also:born on the 8th of See also:December 1795, at See also:Tondern, in the duchy of See also:Schleswig
.
The son of a See also:goldsmith, he learned the See also:trade of a watchmaker at Flensburg, and exercised it at See also:Berlin and Tondern, 1818-182o
.
He had, however, See also:long been a student of See also:science; and Dr Dircks, a physician practising at Tondern, prevailed with his See also:father to send him in 1820 to See also:Copenhagen, where he won the patronage of H
.
C
.
See also:Schumacher, and attracted the See also:personal See also:notice of See also:- KING
- KING (O. Eng. cyning, abbreviated into cyng, cing; cf. O. H. G. chun- kuning, chun- kunig, M.H.G. kiinic, kiinec, kiinc, Mod. Ger. Konig, O. Norse konungr, kongr, Swed. konung, kung)
- KING [OF OCKHAM], PETER KING, 1ST BARON (1669-1734)
- KING, CHARLES WILLIAM (1818-1888)
- KING, CLARENCE (1842–1901)
- KING, EDWARD (1612–1637)
- KING, EDWARD (1829–1910)
- KING, HENRY (1591-1669)
- KING, RUFUS (1755–1827)
- KING, THOMAS (1730–1805)
- KING, WILLIAM (1650-1729)
- KING, WILLIAM (1663–1712)
King See also:Frederick VI
.
The Danish survey was then in progress, and he acted as Schumacher's assistant in See also:work connected with it, chiefly at the new See also:observatory of See also:Altona, 1821-1825
.
Thence he passed on to See also:Gotha as director of the Seeberg observatory; nor could he be tempted to relinquish the See also:post by successive invitations to replace F
.
G
.
W
.
See also:Struve at Dorpat in 1829, and F
.
W
.
See also:Bessel at See also:Konigsberg in 1847
.
The problems of gravitational See also:astronomy engaged the See also:chief See also:part of See also:Hansen's See also:attention
.
A See also:research into the mutual perturbations of See also:Jupiter and See also:Saturn secured for him the See also:prize of the Berlin See also:Academy in 183o, and a memoir on cometary disturbances was crowned by the See also:Paris Academy in 185o
.
In 1838 he published a revision of the lunar theory, entitled Fundamenta nova investigationis, &c., and the improved Tables of the See also:- MOON (a common Teutonic word, cf. Ger. Mond, Du. maan, Dan. maane, &c., and cognate with such Indo-Germanic forms as Gr. µlip, Sans. ma's, Irish mi, &c.; Lat. uses luna, i.e. lucna, the shining one, lucere, to shine, for the moon, but preserves the word i
- MOON, SIR RICHARD, 1ST BARONET (1814-1899)
Moon based upon it were printed in 1857, at the expense of the See also:British See also:government, their merit being further recognized by a See also:- GRANT (from A.-Fr. graunter, O. Fr. greanter for creanter, popular Lat. creantare, for credentare, to entrust, Lat. credere, to believe, trust)
- GRANT, ANNE (1755-1838)
- GRANT, CHARLES (1746-1823)
- GRANT, GEORGE MONRO (1835–1902)
- GRANT, JAMES (1822–1887)
- GRANT, JAMES AUGUSTUS (1827–1892)
- GRANT, ROBERT (1814-1892)
- GRANT, SIR ALEXANDER
- GRANT, SIR FRANCIS (1803-1878)
- GRANT, SIR JAMES HOPE (1808–1895)
- GRANT, SIR PATRICK (1804-1895)
- GRANT, U
- GRANT, ULYSSES SIMPSON (1822-1885)
grant of £1000, and by their immediate See also:adoption in the Nautical See also:Almanac, and other Ephemerides
.
A theoretical discussion of the disturbances embodied in them (still familiarly known to lunar experts as the Darlegung) appeared in the Abhandlungen of the Saxon Academy of Sciences in 1862–1864
.
Hansen twice visited See also:England and was twice (in 1842 and 186o) the recipient of the Royal Astronomical Society's See also:gold See also:medal
.
He communicated to that society in 1847 an able See also:paper on a long-See also:period lunar inequality (See also:Memoirs See also:Roy
.
See also:Asir
.
Society, xvi
.
465), and in 1854 one on the moon's figure, advocating the mistaken See also:hypothesis of its deformation by a huge See also:elevation directed towards the See also:earth (lb. See also:xxiv
.
29)
.
He was awarded the See also:Copley medal by the Royal Society in 185o, and his See also:Solar Tables, compiled with the assistance of See also:Christian Olufsen, appeared in 1854
.
Hansen gave in 1854 the first intimation that the accepted distance of the See also:sun was too See also:great by some millions of See also:miles (See also:Month
.
Notices Roy
.
Asir
.
See also:Soc. xv
.
9), the See also:error of J
.
F
.
See also:Encke's result having been rendered evident through his investigation of a lunar inequality
.
He died on the 28th of See also:March 1874, at the new observatory in the See also:town of Gotha, erected under his care in 1857
.
See Vierteljahrsschrift astr
.
Gesellschaft, x
.
133; Month
.
Notices Roy
.
Asir
.
Society, See also:xxxv
.
168; Proc
.
Roy
.
Society, See also:xxv. p. v.; R
.
See also:Wolf, Geschichte der Astronomic, p
.
526; Wochenschrift See also:fur Astra' nomie, xvii
.
207 (See also:account of See also:early years by E
.
Heis) ; Allgemeine deutsche Biographie (C
.
Bruhns)
.
(A
.
M
.
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