EPSG:4289 Amersfoort
Geographic system in latitude and longitude, in use: Netherlands - onshore. Datum, ellipsoid and transformation to WGS 84 below.
| Code | EPSG:4289 |
|---|---|
| Name | Amersfoort |
| Type | Geographic system |
| Area of use |
Netherlands - onshore Netherlands - onshore, including Waddenzee, Dutch Wadden Islands and 12-mile offshore coastal zone. |
| Bounds | W 3,20° · S 50,75° · E 7,22° · N 53,70° |
| Countries | Netherlands |
| Datum | Amersfoort |
| Ellipsoid | Bessel 1841 a = 6377397.155 m · 1/f = 299.1528128 |
| Unit | degree (Lat north, Lon east) |
| Transformation to WGS 84 | Amersfoort to WGS 84 (4) (EPSG:4833) — accuracy 1 m |
| Scope | Intermediate CRS in transformation to and from projected CRS. |
proj4 definition
+proj=longlat +ellps=bessel +towgs84=565.4171,50.3319,465.5524,-0.398957,0.343988,-1.877402,4.0725 +no_defsPaste it into QGIS, proj4js, PostGIS (spatial_ref_sys) or GDAL. +towgs84 carries the EPSG transformation to WGS 84; the official code stays EPSG:4289.
WKT (ESRI format, the .prj content)
GEOGCS["GCS_Amersfoort",DATUM["D_Amersfoort",SPHEROID["Bessel_1841",6377397.155,299.1528128]],PRIMEM["Greenwich",0.0],UNIT["Degree",0.0174532925199433]]Other systems — Netherlands
Source: EPSG registry v11.022 (IOGP), through the PROJ database. Always check a code on epsg.org before contractual work.