Hα Full-Disk Observation

1949 - 1964: visual observations with the Spectrohelioscope
1957 - 1992: photographic observations with the Monochromatic Heliograph
1991 - 2019: CCD observatios with the Automatic Flare Patrol Telescope
2011 - latest: CCD observations with the Solar Flare Telescope

Automatic Flare Patrol Telescope: Full-Disk Hα Images (gif file, 1036x779 pixels)

2010 2011 2012 2013 2014 2015 2016 2017 2018 2019
2000 2001 2002 2003 2008 2009
1991 1992 1993 1994 1995 1996 1997 1998 1999
The image orientation is celestial north at the top and west to the right.
The files are named "haYYMMDD.hhmm.gif", where 'YYMMDD' is the date of observation and 'hhmm' is the UT time of observation.

Automatic Flare Patrol Telescope: Full-Disk Hα Images (FITS-format data)

2010 2011 2012 2013 2014 2015 2016 2017 2018 2019
2000 2001 2002 2003 2008 2009
1991 1992 1993 1994 1995 1996 1997 1998 1999
The files are named "haYYMMDD.hhmm.fts", where 'YYMMDD' is the date of observation and 'hhmm' is the UT time of observation.

Automatic Flare Patrol Telescope: Full-Disk Hα Images (MPEG movie)

2010 2011 2012 2013 2014 2015 2016 2017 2018 2019
2005 2006 2007 2008 2009
The files are named "haYYYYMMDD_1m.mpeg" or "haYYYYMMDD_10s.mpeg", where 'YYYYMMDD' is the date of observation. '1m' and '10s' are time resolutions of the movie.

Monochromatic Heliograph: Full-Disk Hα Images, Low Resolution (jpg file, 850x525 pixels)

1990 1991 1992
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
1957 1958 1959
The image orientation is celestial north at the top and west to the right.
The files are named "hmYYMMDDhhmm.jpg", where 'YYMMDD' is the date of observation and 'hhmm' is the JST(=UT+9) time of observation.

Monochromatic Heliograph: Full-Disk Hα Images, High Resolution (jpg file, 1700x1050 pixels)

1990 1991 1992
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
1957 1958 1959
The image orientation is celestial north at the top and west to the right.
The files are named "hmYYMMDDhhmm.jpg", where 'YYMMDD' is the date of observation and 'hhmm' is the JST(=UT+9) time of observation.

Map of the Sun in the IGY period (tif file, 6592x4672 pixels)

1957 1958 1959
The files are named "msYYMMDD.tif" where 'YYMMDD' indicates the date.

Drawings of the Sun with the Hα Spectrohelioscope (jpg file)

1960 1961 1962 1963 1964
1950 1951 1952 1953 1954 1955 1956 1957 1958 1959
1949
Flares, plages, and prominences are drawn in red, dark filaments are drawn in blue, and sunspots are drawn in black.
The image orientation is north at the bottom and west to the left, roughly 180 degrees rotated from the normal view. The exact east-west direction was obtained from the diurnal rotation and is shown with a solid line on the map.
The files are named "hsYYMMDD.jpg" where 'YYMMDD' indicates the date of observation.