Bessel ellipsoid
E579588
The Bessel ellipsoid is a historical reference ellipsoid of the Earth defined in the 19th century for geodetic and cartographic purposes, particularly in Europe.
Statements (46)
| Predicate | Object |
|---|---|
| instanceOf |
Earth ellipsoid
ⓘ
geodetic datum component ⓘ reference ellipsoid ⓘ |
| accuracyContext | local best-fit rather than global best-fit ⓘ |
| application |
geodesy
ⓘ
map projection definition ⓘ surveying ⓘ |
| category | European reference ellipsoid ⓘ |
| comparedTo |
Clarke 1866 ellipsoid
NERFINISHED
ⓘ
Hayford 1909 ellipsoid NERFINISHED ⓘ |
| computationBasis |
astronomical observations
ⓘ
geodetic measurements ⓘ |
| coordinateSystemUse | geodetic coordinates (latitude, longitude, ellipsoidal height) ⓘ |
| datumRealization | local best-fit to Europe ⓘ |
| datumUse |
Asian geodetic networks
ⓘ
European geodetic networks ⓘ |
| definedBy | Friedrich Wilhelm Bessel NERFINISHED ⓘ |
| definitionYear | 1841 ⓘ |
| epoch | 19th century ⓘ |
| flattening | 0.003342773182 ⓘ |
| geometryType | rotational ellipsoid ⓘ |
| historicalImportance | one of the first rigorously computed Earth ellipsoids ⓘ |
| inverseFlattening | 299.1528128 ⓘ |
| namedAfter | Friedrich Wilhelm Bessel NERFINISHED ⓘ |
| parameterSet | semi-major axis and flattening ⓘ |
| referenceBody | Earth NERFINISHED ⓘ |
| regionOfBestFit |
Central Europe
NERFINISHED
ⓘ
Europe NERFINISHED ⓘ |
| replacedBy |
GRS80 ellipsoid
NERFINISHED
ⓘ
WGS84 ellipsoid NERFINISHED ⓘ |
| semiMajorAxis | 6377397.155 m ⓘ |
| semiMinorAxis | 6356078.963 m ⓘ |
| status | historical ⓘ |
| surfaceType | oblate spheroid ⓘ |
| unitOfParameters | metre ⓘ |
| usedFor |
cartography
ⓘ
topographic mapping ⓘ triangulation networks ⓘ |
| usedIn |
Austrian geodetic surveys
ⓘ
German geodetic datum ⓘ Japanese geodetic datum (Tokyo datum) ⓘ Nordic geodetic systems (historical) ⓘ Prussian geodetic surveys ⓘ |
| usedUntil | late 20th century in some national systems ⓘ |
| usedWithProjection |
Gauss–Krüger projection
NERFINISHED
ⓘ
Transverse Mercator projection NERFINISHED ⓘ |
Referenced by (2)
Full triples — surface form annotated when it differs from this entity's canonical label.