White-Light Full-Disk Image (Photographs)

Digitized photographs of the white-light observed from 1918 to 1998. Details of the observation are shown below. Here we provide jpeg image calendars, direct links to jpeg image directories, and direct links to FITS file directories. Since 1998, images are observed by CCD camera on the 10cm sunspot telescope (specification is here).

  • Period: 1918-1998
  • Instrumentation:
    • Steinheil 10.5cm equatorial telescope (1918-1921)
    • Grubb 30cm siderostat (1921-1923)
    • 4.5cm objective lens (1923-1939, installed on the Steinheil 10.5cm equatorial telescope)
    • Steinheil 10.5cm telescope (1939-1998, installed on the Carl Zeiss 20cm equatorial telescope)
  • Recoding device:
    • Photographic plate, quarter-plate (1918-1923,1926-1930,1938-1943,1946)
    • Photographic plate, cabinet card (1923-1937,1956-1968)
    • 120x165mm sheet film (1968-1998)
  • Telescope site: Azabu (1918-1924) and Mitaka (1925-1998), Tokyo, Japan
  • Number of images: 19242
  • Number of observing days: 11680

Direct Links to jpg file directories (800x800 pixels)

1990 1991 1992 1993 1994 1995 1996 1997 1998
1980 1981 1982 1983 1984 1985 1986 1987 1988 1989
1970 1971 1972 1973 1974 1975 1976 1977 1978 1979
1960 1961 1962 1963 1964 1965 1966 1967 1968 1969
1950 1951 1952 1953 1954 1955 1956 1957 1958 1959
1940 1941 1942 1943 1944 1945 1946 1947 1948 1949
1930 1931 1932 1933 1934 1935 1936 1937 1938 1939
1920 1921 1922 1923 1924 1925 1926 1927 1928 1929
1918 1919
The celestial north is roughly to the top, and the west is roughly to the right.
A filename, "wlYYYYMMDD_nnn.jpg", shows the date with YYYYMMDD and the daily image number with nnn.

Direct Links to FITS file directories

1990 1991 1992 1993 1994 1995 1996 1997 1998
1980 1981 1982 1983 1984 1985 1986 1987 1988 1989
1970 1971 1972 1973 1974 1975 1976 1977 1978 1979
1960 1961 1962 1963 1964 1965 1966 1967 1968 1969
1950 1951 1952 1953 1954 1955 1956 1957 1958 1959
1940 1941 1942 1943 1944 1945 1946 1947 1948 1949
1930 1931 1932 1933 1934 1935 1936 1937 1938 1939
1920 1921 1922 1923 1924 1925 1926 1927 1928 1929
1918 1919
These FITS files contain raw scanned data. The header of each file includes various kinds of information as follows.
  • CRPIXn : approximate position of the disk center
  • CROTA1 : position angle of the celestial north from the top of image
  • CDELT1 : positive (1) is to the west, negative (-1) to the east
  • CDELT2 : positive (1) is to the north, negative (-1) to the south
  • SOLR_PIX : approximate radius of the disk in pixel

List for javascript movies and jpg images (800x800 pixels. One image on a day)

A calendar view of solar fulldisk images (a representative image on an observation day). The celestial north is roughly to the top, and the west is roughly to the right. A filename, "wlYYYYMMDD_nnn.jpg", shows the date with YYYYMMDD and the daily image number with nnn.
1998 Javascript
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1997 Javascript
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1982 Javascript
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1970 Javascript
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1966 Javascript
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1964 Javascript
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1963 Javascript
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1962 Javascript
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1943 Javascript
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1942 Javascript
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1941 Javascript
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1940 Javascript
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1939 Javascript
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1938 Javascript
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1930 Javascript
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1920 Javascript
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1918 Javascript
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List for jpg images (800×800 pixels. one or two images on a day)

List of solar fulldisk images (all images taken in an observation day). The celestial north is roughly to the top, and the west is roughly to the right. A filename, "wlYYYYMMDD_nnn.jpg", shows the date with YYYYMMDD and the daily image number with nnn.
1998 Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
1997 Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
1996 Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
1995 Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
1994 Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
1993 Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
1992 Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
1991 Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
1990 Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
1989 Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
1988 Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
1987 Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
1986 Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
1985 Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
1984 Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
1983 Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
1982 Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
1981 Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
1980 Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
1979 Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
1978 Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
1977 Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
1976 Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
1975 Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
1974 Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
1973 Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
1972 Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
1971 Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
1970 Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
1969 Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
1968 Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
1967 Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
1966 Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
1965 Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
1964 Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
1963 Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
1962 Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
1961 Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
1960 Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
1959 Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
1958 Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
1957 Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
1956 Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
1946 Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
1943 Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
1942 Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
1941 Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
1940 Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
1939 Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
1938 Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
1937 Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
1936 Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
1935 Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
1934 Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
1933 Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
1932 Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
1931 Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
1930 Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
1929 Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
1928 Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
1927 Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
1926 Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
1925 Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
1924 Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
1923 Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
1922 Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
1921 Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
1920 Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
1919 Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
1918 Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec