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Sunspot numbers derived from individual drawings are shown below in the form of a colour table from blue through to red via green and yellow. A sunspot number of 0 is , a sunspot number of 50 is , a sunspot number of 100 is , a sunspot number of 150 is while a sunspot number of 200 or more is . The numbers are given for each solar rotation so that active longitudes can be identified. Dates can be seen by placing the mouse icon over each coloured square.

Rotation

                                                        

1905

                               1st February 1996 2nd February 1996 3rd February 1996 4th February 1996                  

1906

   14th February 1996     17th February 1996 18th February 1996 19th February 1996   21st February 1996         26th February 1996 27th February 1996 28th February 1996 29th February 1996                   10th March 1996  

1907

             17th March 1996           23rd March 1996   25th March 1996   27th March 1996 28th March 1996 29th March 1996 30th March 1996   1st April 1996 2nd April 1996 3rd April 1996 4th April 1996 5th April 1996    

1908

 8th April 1996         13th April 1996   15th April 1996 16th April 1996 17th April 1996     20th April 1996       24th April 1996 25th April 1996 26th April 1996 27th April 1996 28th April 1996         3rd May 1996 4th May 1996  

1909

 5th May 1996 6th May 1996 7th May 1996 8th May 1996 9th May 1996 10th May 1996   12th May 1996 13th May 1996 14th May 1996 15th May 1996               23rd May 1996   25th May 1996   27th May 1996 28th May 1996   30th May 1996 31st May 1996  

1910

 1st June 1996 2nd June 1996 3rd June 1996 4th June 1996 5th June 1996 6th June 1996 7th June 1996   9th June 1996   11th June 1996 12th June 1996 13th June 1996 14th June 1996 15th June 1996 16th June 1996 17th June 1996 18th June 1996     21st June 1996 22nd June 1996 23rd June 1996 24th June 1996 25th June 1996 26th June 1996    

1911

                         10th July 1996 11th July 1996 12th July 1996 13th July 1996 14th July 1996   16th July 1996 17th July 1996 18th July 1996 19th July 1996 20th July 1996 21st July 1996 22nd July 1996      

1912

 25th July 1996 26th July 1996 27th July 1996   29th July 1996   31st July 1996 1st August 1996 2nd August 1996 3rd August 1996 4th August 1996 5th August 1996         10th August 1996 11th August 1996       15th August 1996 16th August 1996 17th August 1996 18th August 1996 19th August 1996 20th August 1996 21st August 1996

1913

 22nd August 1996   24th August 1996   26th August 1996 27th August 1996         1st September 1996   3rd September 1996   5th September 1996 6th September 1996   8th September 1996         13th September 1996 14th September 1996 15th September 1996 16th September 1996 17th September 1996  

1914

       21st September 1996   23rd September 1996 24th September 1996                   4th October 1996 5th October 1996               13th October 1996    

1915

   16th October 1996     19th October 1996   21st October 1996   23rd October 1996 24th October 1996   26th October 1996     29th October 1996     1st November 1996       5th November 1996 6th November 1996   8th November 1996 9th November 1996    

1916

     13th November 1996 14th November 1996 15th November 1996 16th November 1996   18th November 1996     21st November 1996   23rd November 1996         28th November 1996   30th November 1996   2nd December 1996   4th December 1996 5th December 1996      

1917

           14th December 1996               22nd December 1996 23rd December 1996 24th December 1996   26th December 1996   28th December 1996   30th December 1996 31st December 1996          

Rotation

                                                        

1918

                 13th January 1997 14th January 1997   16th January 1997         21st January 1997     24th January 1997 25th January 1997              

1919

     3rd February 1997   5th February 1997     8th February 1997 9th February 1997           15th February 1997     18th February 1997         23rd February 1997   25th February 1997      

1920

 1st March 1997 2nd March 1997       6th March 1997       10th March 1997 11th March 1997 12th March 1997 13th March 1997 14th March 1997 15th March 1997           21st March 1997 22nd March 1997     25th March 1997   27th March 1997  

1921

 28th March 1997 29th March 1997 30th March 1997 31st March 1997 1st April 1997 2nd April 1997 3rd April 1997 4th April 1997 5th April 1997 6th April 1997 7th April 1997 8th April 1997 9th April 1997 10th April 1997 11th April 1997 12th April 1997 13th April 1997 14th April 1997 15th April 1997 16th April 1997     19th April 1997 20th April 1997 21th April 1997 22nd April 1997 23rd April 1997  

1922

 24th April 1997       28th April 1997   30th April 1997 1st May 1997 2nd May 1997 3rd May 1997 4th May 1997 5th May 1997 6th May 1997 7th May 1997   9th May 1997 10th May 1997 11th May 1997 12th May 1997 13th May 1997                

1923

       25th May 1997 26th May 1997 27th May 1997 28th May 1997 29th May 1997 30th May 1997 31st May 1997               8th June 1997 9th June 1997 10th June 1997   12th June 1997 13th June 1997   15th June 1997 16th June 1997 17th June 1997  

1924

 18th June 1997   20th June 1997 21st June 1997 22nd June 1997           28th June 1997     1st July 1997 2nd July 1997 3rd July 1997   5th July 1997 6th July 1997 7th July 1997 8th July 1997 9th July 1997 10th July 1997 11th July 1997 12th July 1997 13th July 1997 14th July 1997  

1925

 15th July 1997 16th July 1997   18th July 1997 19th July 1997 20th July 1997 21st July 1997 22nd July 1997 23rd July 1997 24th July 1997 25th July 1997 26th July 1997 27th July 1997 28th July 1997 29th July 1997 30th July 1997     2nd August 1997 3rd August 1997 4th August 1997 5th August 1997 6th August 1997 7th August 1997 8th August 1997 9th August 1997 10th August 1997  

1926

 11th August 1997   13th August 1997 14th August 1997 15th August 1997 16th August 1997 17th August 1997 18th August 1997 19th August 1997 20th August 1997 21st August 1997   23rd August 1997 24th August 1997 25th August 1997 26th August 1997 27th August 1997 28th August 1997 29th August 1997   31st August 1997   2nd September 1997   4th September 1997   6th September 1997  

1927

 7th September 1997 8th September 1997 9th September 1997 10th September 1997   12th September 1997 13th September 1997   15th September 1997 16th September 1997   18th September 1997   20th September 1997 21st September 1997 22nd September 1997 23rd September 1997     26th September 1997               4th October 1997

1928

   6th October 1997     9th October 1997 10th October 1997   12th October 1997           18th October 1997 19th October 1997   21st October 1997 22nd October 1997 23rd October 1997   25th October 1997 26th October 1997   28th October 1997 29th October 1997   31st October 1997  

1929

 1st November 1997 2nd November 1997   4th November 1997       8th November 1997     11th November 1997                     22nd November 1997 23rd November 1997       27th November 1997  

1930

 28th November 1997 29th November 1997             6th December 1997 7th December 1997     10th December 1997 11th December 1997 12th December 1997 13th December 1997 14th December 1997                      

1931

 26th December 1997 27th December 1997   29th December 1997   31st December 1997 1st January 1998   3rd January 1998   5th January 1998   7th January 1998   9th January 1998 10th January 1998       14th January 1998           20th January 1998 21st January 1998  

Rotation

                                                        

1932

         26th January 1998             2nd February 1998         7th February 1998 8th February 1998 9th February 1998 10th February 1998 11th February 1998   13th February 1998 14th February 1998 15th February 1998   17th February 1998  

1933

 18th February 1998       22nd February 1998   24th February 1998       28th February 1998 1st March 1998 2nd March 1998     5th March 1998   7th March 1998   9th March 1998         14th March 1998      

1934

 18th March 1998 19th March 1998               27th March 1998 28th March 1998         2nd April 1998     5th April 1998 6th April 1998 7th April 1998         12th April 1998 13th April 1998  

1935

 14th April 1998   16th April 1998     19th April 1998 20th April 1998   22nd April 1998 23rd April 1998       27th April 1998 28th April 1998 29th April 1998     2nd May 1998 3rd May 1998 4th May 1998 5th May 1998     8th May 1998 9th May 1998 10th May 1998  

1936

 11th May 1998 12th May 1998 13th May 1998 14th May 1998 15th May 1998 16th May 1998 17th May 1998 18th May 1998 19th May 1998 20th May 1998 21st May 1998 22nd May 1998   24th May 1998 25th May 1998     28th May 1998 29th May 1998 30th May 1998                

1937

 7th June 1998 8th June 1998   10th June 1998   12th June 1998   14th June 1998   16th June 1998 17th June 1998   19th June 1998 20th June 1998 21st June 1998 22nd June 1998   24th June 1998                    

1938

                 13th July 1998   15th July 1998 16th July 1998 17th July 1998 18th July 1998 19th July 1998 20th July 1998 21st July 1998 22nd July 1998 23rd July 1998 24th July 1998 25th July 1998 26th July 1998 27th July 1998   29th July 1998      

1939

 1st August 1998 2nd August 1998   4th August 1998 5th August 1998 6th August 1998 7th August 1998 8th August 1998 9th August 1998 10th August 1998 11th August 1998 12th August 1998 13th August 1998   15th August 1998 16th August 1998 17th August 1998 18th August 1998 19th August 1998 20th August 1998 21st August 1998 22nd August 1998   24th August 1998     27th August 1998  

1940

 28th August 1998 29th August 1998   31st August 1998     3rd September 1998 4th September 1998     7th September 1998 8th September 1998     11th September 1998 12th September 1998   14th September 1998   16th September 1998 17th September 1998     20th September 1998 21st September 1998   23rd September 1998  

1941

 24th September 1998 25th September 1998   27th September 1998                           11th October 1998       15th October 1998   17th October 1998 18th October 1998 19th October 1998    

1942

       25th October 1998     28th October 1998 29th October 1998 30th October 1998   1st November 1998                   11th November 1998     14th November 1998     17th November 1998  

1943

     20th November 1998 21st November 1998               29th November 1998             6th December 1998           12th December 1998      

1944

         19th December 1998 20th December 1998       24th December 1998       28th December 1998       1st January 1999 2nd January 1999   4th January 1999 5th January 1999 6th January 1999 7th January 1999 8th January 1999     11th January 1999

Rotation

                                                        

1945

           17th January 1999       21st January 1999 22nd January 1999 23th January 1999                             7th February 1999  

1946

           13th February 1999             20th February 1999     23rd February 1999       27th February 1999 28th February 1999              

1947

       10th March 1999   12th March 1999 13th March 1999 14th March 1999 15th March 1999 16th March 1999 17th March 1999 18th March 1999   20th March 1999 21st March 1999 22nd March 1999 23rd March 1999   25th March 1999   27th March 1999 28th March 1999     31st March 1999 1st April 1999 2nd April 1999  

1948

 4th April 1999   6th April 1999   8th April 1999 9th April 1999     12th April 1999   14th April 1999 15th April 1999 16th April 1999 17th April 1999 18th April 1999 19th April 1999     22th April 1999     25th April 1999   27th April 1999     30th April 1999  

1949

 1st May 1999 2nd May 1999 3rd May 1999     6th May 1999   8th May 1999 9th May 1999 10th May 1999 11th May 1999 12th May 1999   14th May 1999 15th May 1999 16th May 1999 17th May 1999   19th May 1999 20th May 1999 21th May 1999 22nd May 1999            

1950

         1st June 1999       5th June 1999 6th June 1999   8th June 1999 9th June 1999 10th June 1999     13th June 1999 14th June 1999 15th June 1999 16th June 1999 17th June 1999 18th June 1999 19th June 1999 20th June 1999 21st June 1999 22nd June 1999    

1951

 24th June 1999                           8th July 1999 9th July 1999 10th July 1999 11th July 1999 12th July 1999 13th July 1999 14th July 1999   16th July 1999 17th July 1999 18th July 1999 19th July 1999    

1952

     23rd July 1999 24th July 1999 25th July 1999 26th July 1999 27th July 1999 28th July 1999 29th July 1999 30th July 1999 31st July 1999 1st August 1999 2nd August 1999   4th August 1999 5th August 1999 6th August 1999 7th August 1999 8th August 1999   10th August 1999   12th August 1999   14th August 1999 15th August 1999 16th August 1999  

1953

 18th August 1999 19th August 1999 20th August 1999 21st August 1999 22nd August 1999 23rd August 1999     26th August 1999 27th August 1999 28th August 1999   30th August 1999 31st August 1999 1st September 1999 2nd September 1999 3rd September 1999 4th September 1999 5th September 1999 6th September 1999   8th September 1999   10th September 1999 11th September 1999   12th September 1999  

1954

       17th September 1999 18th September 1999           24th September 1999 25th September 1999 26th September 1999   28th September 1999       2nd October 1999 3rd October 1999 4th October 1999 5th October 1999 6th October 1999       10th October 1999  

1955

 11th October 1999 12th October 1999 13th October 1999 14th October 1999   16th October 1999 17th October 1999 18th October 1999 19th October 1999                       31st October 1999           6th November 1999  

1956

 7th November 1999           13th November 1999         18th November 1999