The Solar Bulletin of the American Association of Variable Star Observers (ISSN 0271-8480) is the publication of record for observational data relating to sunspot and sudden ionospheric disturbance (SID) observations by Solar Section observers of the AAVSO. The Solar Bulletin is published monthly in the calendar month following the cover date (i.e. the January issue is published in mid-February, and contains data for January). It has been published regularly with few interruptions since 1944.
The AAVSO Solar Bulletin is currently listed in the NASA ADS Abstract Service under journal code "AAVSB". If you use AAVSO solar data or the bulletin in your publication, please cite the data accordingly; more importantly, please let us know that you use these data! We would appreciate receiving a copy of any and all publications that reference AAVSO data; please send offprints or links to abstract pages to aavso@aavso.org.
Active solar observers receive a copy of the Solar Bulletin each month. Institutions and other entities may subscribe to the Solar Bulletin for a fee. See our subscriptions page for details.
Note that data from the AAVSO Solar Section are only available either via the Bulletin or via NOAA's National Geophysical Data Center. We are working toward making these data available electronically via the AAVSO website in the very near future.
Solar Bulletin
Jump to year: 2024, 2023, 2022, 2021, 2020, 2019, 2018, 2017, 2016, 2015, 2014, 2013, 2012, 2011, 2010, 2009, 2008, 2007, 2006, 2005, 2004, 2003, 2002, 2001, 2000, 1999, 1998, 1997, 1996, 1995, 1994, 1993, 1992, 1991, 1990, 1989, 1988, 1987, 1986, 1985, 1984, 1983, 1982, 1981, 1980, 1979, 1978, 1977, 1976, 1975, 1974, 1973, 1972, 1971, 1970, 1969, 1968, 1967, 1966, 1965, 1964, 1963, 1962, 1961, 1960, 1959, 1958, 1957, 1956, 1955, 1954, 1953, 1952, 1951, 1950, 1949, 1948, 1947, 1946, 1945
Current Volume: 2024, Volume 80
January, February, March, April, May, June, July, August, September, October, November
Past Volumes:
2023, Volume 79
January, February, March, April, May, June, July, August, September, October, November, December
2022, Volume 78
January, February, March, April, May, June, July, August, September, October, November, December
2021, Volume 77
January, February, March, April, May, June, July, August, September, October, November, December
2020, Volume 76
January, February, March, April, May, June, July, August, September, October, November, December
2019, Volume 75
January, February, March, April, May, June, July, August, September, October, November, December
2018, Volume 74
January, February, March, April, May, June, July, August, September, October, November, December
2017, Volume 73
January, February, March, April, May, June, July, August, September, October, November, December
2016, Volume 72
January, February, March, April, May, June, July, August, September, October, November, December
2015, Volume 71
January, February, March, April, May, June, July, August, September, October, November, December
2014, Volume 70
January, February, March, April, May, June, July, August, September, October, November, December
2013, Volume 69
January, February, March, April, May, June, July, August, September, October, November, December
2012, Volume 68
January, February, March, April, May, June, July, August, September, October, November, December
2011, Volume 67
January, February, March, April, May, June, July, August, September, October, November, December
2010, Volume 66
January, February, March, April, May, June, July, August, September, October, November, December
2009, Volume 65
January, February, March, April, May, June, July, August, September, October, November, December
2008, Volume 64
January, February, March, April, May, June, July, August, September, October, November, December
2007, Volume 63
January, February, March, April, May, June, July, August, September, October, November, December
2006, Volume 62
January, February, March, April, May, June, July, August, September, October, November, December
2005, Volume 61
January, February, March, April, May, June, July, August, September, October, November, December
2004, Volume 60
January, February, March, April, May, June, July, August, September, October, November, December
2003, Volume 59
January, February, March, April, May, June, July, August, September, October, November, December
2002, Volume 58
January, February, March, April, May, June, July, August, September, October, November, December
2001, Volume 57
January, February, March, April, May, June, July, August, September, October, November, December
2000, Volume 56
January, February, March, April, May, June, July, August, September, October, November, December
1999, Volume 55
January, February, March, April, May, June, July, August, September, October, November, December
1998, Volume 54
January, February, March, April, May, June, July, August, September, October, November, December
1997, Volume 53
January, February, March, April, May, June, July, August, September, October, November, December
1996, Volume 52
January, February, March, April, May, June, July, August, September, October, November, December
1995, Volume 51
January, February, March, April, May, June, July, August, September, October, November, December
1994, Volume 50
January, February, March, April, May, June, July, August, September, October, November, December
1993, Volume 49
January, February, March, April, May, June, July, August, September, October, November, December
1992, Volume 48
January, February, March, April, May, June, July, August, September, October, November, December
1991, Volume 47
January, February, March, April, May, June, July, August, September, October, November, December
1990, Volume 46
January, February, March, April, May, June, July, August, September, October, November, December
1989, Volume 45
January, February, March, April, May, June, July, August, September, October, November, December
1988, Volume 44
January, February, March, April, May, June, July, August, September, October, November, December
1987, Volume 43
January, February, March, April, May, June, July, August, September, October, November, December
1986, Volume 42
January, February, March, April, May, June, July, August, September, October, November, December
1985, Volume 41
January, February, March, April, May, June, July, August, September, October, November, December
1984, Volume 40
January, February, March, April, May, June, July, August, September, October, November, December
1983, Volume 39
January, February, March, April, May, June, July, August, September, October, November, December
1982, Volume 38
January, February, March, April, May, June, July, August, September, October, November, December
1981, Volume 37
January, February, March, April, May, June, July, August, September, October, November, December
1980, Volume 36
January, February, March, April, May, June, July, August, September, October, November, December
1979, Volume 35
January, February, March, April, May, June, July, August, September, October, November, December
1978, Volume 34
January, February, March, April, May, June, July, August, September, October, November, December
1977, Volume 33
January, February, March, April, May, June, July, August, September, October, November, December
1976, Volume 32
January, February, March, April, May, June, July, August, September, October, November, December
1975, Volume 31
January, February, March, April, May, June, July, August, September, October, November, December
1974, Volume 30
January, February, March, April, May, June, July, August, September, October, November, December
1973, Volume 29
January, February, March, April, May, June, July, August, September, October, November, December
1972, Volume 28
January, February, March, April, May, June, July, August, September, October, November, December
1971, Volume 27
January, February, March, April, May, June,July (missing), August, September, October, November, December
1970, Volume 26
January, February, March, April, May, June, July, August, September, October, November, December
1969, Volume 25
January, February, March, April, May, June, July, August, September, October, November, December
1968, Volume 24
January, February, March, April, May, June, July, August, September, October, November, December
1967, Volume 23
January, February, March, April, May, June, July, August, September, October, November, December
1966, Volume 22
January, February, March, April, May, June, July, August, September, October, November, December
1965, Volume 21
January, February, March, April, May, June, July, August, September, October, November, December
1964, Volume 20 (incomplete)
June, July, August, September, October, November, December
1963, Volume 19 (incomplete)
1962, Volume 18 (incomplete)
1959, Volume 15 (incomplete)
1958, Volume 14
January-June, July-September, October-December
1957, Volume 13
January-February, March-April, May-June, July-August, September-October, November-December
1956, Volume 12
January, February, March-April, May-June, July-August, September-October, November-December
1955, Volume 11
January, February, March-April, May, June-July, August-September, October-November, December
1954, Volume 10
January, February, March, April, May, June-July, August-September, October, November, December
1953, Volume 9
January, February, March, April, May, June, July (final 1953 issue published)
1952, Volume 8
January-February, March, April, May, June, July, August, September, October, November, December
1951, Volume 7
January, February, March, April, May, June, July, August-September, October, November, December
1950, Volume 6
January, February, March, April, May, June, July, August-September, October, November, December
1949, Volume 5
January, February, March, April, May, June, July, August-September, October, November, December
1948, Volume 4
January, February, March, April, May, June, July, August, September, October, November, December
1947, Volume 3
January, February, March, April, May (not published), June, July, August, September, October, November, December
1946, Volume 2
January, February, March, April (not published), May, June, July, August, September, October (not published), November, December
1945, Volume 1
September (inaugural issue), October, November, December
Solar Bulletin Archives
Logo of the Solar Bulletin, January 1954
Volunteers wanted! If you're local to AAVSO Headquarters (Cambridge, Massachusetts) and are interested in helping us scan paper copies of the Solar Bulletin from 1964 backwards, please contact aavso@aavso.org. Alternately, if you have your own copies of the bulletin and can provide scanned PDF, JPEG, or PNG files, please let us know.
Many thanks to our first volunteer, Roberto Battaiola of Italy, for providing us with scans of Volumes 45 to 57! Thanks also to David Schmitt of the UC San Diego Engineering Library for help acquiring missing issues!
We will work to place earlier issues of the Solar Bulletin online as time and resources permit.