{
  "id": "VIII/4",
  "title_cds": "Fourth Cambridge Survey (4C)",
  "title_create": "Pilkington+ 1965; Gower+ 1967",
  "year": "1967",
  "author": "Pilkington J.D.H., Scott P.F.",
  "title_pub": " A survey of radio sources between declinations 20 and 40.",
  "first_author": "Pilkington J.D.H.",
  "bibcode": [
    "1965MmRAS..69..183P",
    "1967MmRAS..71...49G"
  ],
  "ref_biblio": [
    "<Mem. Roy. Astron. Soc. 69, 183 (1965)>",
    "<Mem. Roy. Astron. Soc. 71, 49 (1967)>"
  ],
  "keyword_cds": [
    "Surveys",
    "Radio sources"
  ],
  "description": [
    "The Fourth Cambridge Radio Survey (4C) Catalogue contains all survey",
    "data from the papers of Pilkington and Scott (1965MmRAS..69..183P) and",
    "Gower, Scott and Wills (1967MmRAS..71...49G). These data result from a",
    "survey of radio sources between declinations -07 and +80 degrees using",
    "the large Cambridge interferometer at 178 MHz. The computerized",
    "catalog contains for each source the 4C number, 1950 position,",
    "measured flux density, accuracy class, galactic coordinates, and",
    "remarks. For some sources miscellaneous brief comments such as cross",
    "identifications to the 3C catalog or remarks on contamination from",
    "nearby sources are given at the ends of the data records. A flag (*)",
    "is included if there are additional remarks in the published catalog."
  ],
  "curator": "C.-H. Joseph Lyu [Hughes STX/NASA]",
  "history": [
    "* 27-Aug-2001: Declination of 4C+16.12 corrected, thanks to E. Davoust",
    "* 03-Sep-2001: 3C counterpart of 4C+02.41 changed to 3C327 (ibid)",
    "* 21-Aug-2025: Galactic cooordinates corredted for 4C+16.12,",
    "thank to H. Andernach"
  ],
  "ack": "The original ADC documentation by Wayne H. Warren, Jr. (1983) was used to create this ReadMe file.",
  "tables": [
    {
      "name": "radio4c.dat",
      "desc": "Fourth Cambridge Radio Survey Data"
    }
  ],
  "archive_date_creation": "22-Apr-1998",
  "catid": 8004,
  "vizier_date_update": "21-Aug-2025",
  "xmatch": "VIII/4/radio4c",
  "doi_pub": [
    ""
  ],
  "alias": "4C",
  "type": [
    "OC"
  ],
  "records": "4844 sources",
  "archive_date_update": "21-Aug-2025",
  "uat": [
    "Surveys",
    "Radio sources"
  ],
  "ip_addr": "216.73.217.17",
  "data_access": "v-f"
}