EPSG:CODE

EPSG:4817 — NGO 1948 (Oslo)

Geographic 2D · Norway - onshore

Export Formats

WKT2
GEOGCRS[
    "NGO 1948 (Oslo)",
    DATUM[
        "NGO 1948 (Oslo)",
        ELLIPSOID[
            "Bessel Modified",
            6377492.018,
            299.1528128,
            LENGTHUNIT["metre",1,ID["EPSG",9001]],
            ID["EPSG",7005]
        ],
        ID["EPSG",6817]
    ],
    PRIMEM[
        "Oslo",
        10.722916667,
        ANGLEUNIT["degree",0.0174532925199433,ID["EPSG",9102]],
        ID["EPSG",8913]
    ],
    CS[ellipsoidal,2,ID["EPSG",6422]],
    AXIS["Geodetic latitude (Lat)",north],
    AXIS["Geodetic longitude (Lon)",east],
    ANGLEUNIT["degree",0.0174532925199433,ID["EPSG",9102]],
    ID["EPSG",4817]
]

Related Coordinate Systems

Available Transformations (3)

Transformation Source → Target Accuracy (m)
NGO 1948 (Oslo) to NGO1948 (1)
4817 → 4273 0
NGO 1948 (Oslo) to WGS 84 (1)
4817 → 4326 3
NGO 1948 (Oslo) to NGO1948 (Greenwich) Deprecated
4817 → 4273 —

Other CRS using NGO 1948 (Oslo)

Frequently Asked Questions

How do I add EPSG:4817 to PostGIS?

Add the following definition to your PostGIS configuration: 

INSERT INTO spatial_ref_sys (srid, auth_name, auth_srid, proj4text, srtext)
VALUES (4817, 'EPSG', 4817, '+proj=longlat +a=6377492.018 +rf=299.1528128 +pm=oslo +no_defs +type=crs', '');
Read the full PostGIS guide →

How do I add EPSG:4817 to MapServer?

Add the following definition to your MapServer configuration: 

PROJECTION
  "+proj=longlat"
  "+a=6377492.018"
  "+rf=299.1528128"
  "+pm=oslo"
  "+no_defs"
  "+type=crs"
END
Read the full MapServer guide →

How do I use EPSG:4817 with Proj4js?

Add the following definition to your Proj4js configuration: 

proj4.defs("EPSG:4817", "+proj=longlat +a=6377492.018 +rf=299.1528128 +pm=oslo +no_defs +type=crs");
Read the full Proj4js guide →