Introduction
Sunspot Activity Notes
Solar Observing CD-ROM
Sunspot Development
Disk Animations
Disk Drawings
Eclipses of the Sun
Glossary
Hydrogen Alpha
Latest Disk Animation
Latest Disk Drawing
Sunspot Measurements
Observing the Sun
Parallactic Angle
Software
Solar Books
Stonyhurst Disks
The Sun as viewed from the Earth
Sunspot Area
Sunspot Location
Sunspot Numbers
Sunspot Trends
Transits
Useful Links
What's New

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

                                                

2039

     20th January 2006 21st January 2006     24th January 2006 25th January 2006   27th January 2006 28th January 2006 29th January 2006             5th February 2006     8th February 2006 9th February 2006 10th February 2006       14th February 2006

2040

 15th February 2006 16th February 2006         21st February 2006       25th February 2006 26th February 2006     1st March 2006 2nd March 2006 3rd March 2006 4th March 2006 5th March 2006 6th March 2006         11th March 2006   13th March 2006  

2041

   15th March 2006     18th March 2006 19th March 2006       23rd March 2006   25th March 2006               2nd April 2006   4th April2006 5th April 2006 6th April 2006   8th April 2006 9th April 2006  

2042

 10th April 2006   12th April 2006   14th April 2006   16th April 2006 17th April 2006 18th April 2006       22nd April 2006       26th April 2006     29th April 2006 30th April 2006   2nd May 2006 3rd May 2006 4th May 2006 5th May 2006   7th May 2006

2043

   9th May 2006 10th May 2006 11th May 2006 12th May 2006 13th May 2006             20th May 2006 21st May 2006   23rd May 2006   25th May 2006 26th May 2006   28th May 2006 29th May 2006 30th May 2006 31st May 2006     3rd June 2006  

2044

   5th June 2006 6th June 2006 7th June 2006 8th June 2006 9th June 2006 10th June 2006 11th June 2006 12th June 2006   14th June 2006 15th June 2006 16th June 2006 17th June 2006 18th June 2006   20th June 2006 21st June 2006 22nd June 2006 23rd June 2006 24th June 2006     27th June 2006 28th June 2006 29th June 2006 30th June 2006  

2045

 1st July 2006 2nd July 2006 3rd July 2006 4th July 2006 5th July 2006   7th July 2006 8th July 2006 9th July 2006   11th July 2006 12th July 2006 13th July 2006 14th July 2006 15th July 2006 16th July 2006 17th July 2006 18th July 2006 19th July 2006 20th July 2006 21st July 2006 22nd July 2006 23rd July 2006 24th July 2006 25th July 2006 26th July 2006    

2046

 28th July 2006   30th July 2006 31st July 2006 1st August 2006 2nd August 2006 3rd August 2006 4th August 2006 5th August 2006   7th August 2006 8th August 2006 9th August 2006 10th August 2006     13th August 2006 14th August 2006       18th August 2006   20th August 2006 21st August 2006 22nd August 2006    

2047

 25th August 2006 26th August 2006 27th August 2006 28th August 2006 29th August 2006 30th August 2006   1st September 2006   3rd September 2006 4th September 2006 5th September 2006 6th September 2006 7th September 2006 8th September 2006                       20th September 2006  

2048

 21st September 2006     24th September 2006   26th September 2006     29th September 2006 30th September 2006   2nd October 2006         7th October 2006 8th October 2006       12th October 2006 13th October 2006 14th October 2006 15th October 2006 16th October 2006    

2049

     20th October 2006 21st October 2006           27th October 2006         1st November 2006 2nd November 2006 3rd November 2006 4th November 2006 5th November 2006 6th November 2006     9th November 2006   11th November 2006 12th November 2006 13th November 2006  

2050

         18th November 2006 19th November 2006       23rd November 2006   25th November 2006       29th November 2006       3rd December 2006 4th December 2006   6th December 2006 7th December 2006   9th December 2006 10th December 2006  

2051

 12th December 2006       16th December 2006 17th December 2006     20th December 2006                             4th January 2007        

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Last updated on 30 March 2007.