Sunspot Drawings Observation

Latitude Distribution of Sunspots (Butterfly Diagram)

Coordinates

about coordinates
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
1943 1944 1945 1946 1947 1948 1949

Sunspot Drawings, Low Resolution (jpg file, 885x645 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
1938 1939
The drawing was made by projection onto a piece of paper, so that it is mirror-reflection of the normal view of the Sun, namely celestial north at the top and west to the left. The files are named "YYMMDDs.jpg" where 'YYMMDD' is the JST(=UT+9) date of observation.

Sunspot Drawings, High Resolution (gif file, 3.5kx2.5k 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
1938 1939
The drawing was made by projection onto a piece of paper, so that it is mirror-reflection of the normal view of the Sun, namely celestial north at the top and west to the left. The files are named "YYMMDDs.jpg" where 'YYMMDD' is the JST(=UT+9) date of observation.