topografia 1 forma della terra
topografia 1 forma della terra
topografia 1 forma della terra
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anno<br />
semiasse a<br />
semiasse b<br />
schiacciamento α<br />
zona<br />
Everest<br />
1830<br />
6377276,345<br />
6356075,413<br />
1/300,80<br />
India<br />
Bessel<br />
1841<br />
6377397,15<br />
6356078,96<br />
1/299,15<br />
Europa, Giappone<br />
Clarke<br />
1880<br />
6378249,20<br />
6356515,00<br />
1/293,46<br />
Francia<br />
Helmert<br />
1906<br />
6378200,00<br />
6356818,17<br />
1/298,40<br />
FORMA DELLA TERRA<br />
Ellissoidi<br />
Hayford<br />
1909<br />
6378388,00<br />
6356912,00<br />
1/297,00<br />
Usa, Italia<br />
International<br />
1924<br />
6378388,00<br />
6356911,94<br />
1/297,00<br />
Krassowsky<br />
1942<br />
6378245,00<br />
6356863,02<br />
1/298,30<br />
Urss<br />
Fischer<br />
1980<br />
6378160,00<br />
6356774,72<br />
1/298,25<br />
Nad 83<br />
1983<br />
6378137,00<br />
6356752,30<br />
1/298,25<br />
Usa<br />
WGS 84<br />
1984<br />
6378137,00<br />
6356752,31<br />
1/298,25<br />
GPS
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