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

                                                

2052

     10th January 2007       14th January 2007 15th January 2007       19th January 2007   21st January 2007   23rd January 2007   25th January 2007   27th January 2007 28th January 2007     31st January 2007   2nd February 2007 3rd February 2007  

2053

 4th February 2007             11th February 2007       15th February 2007   17th February 2007       21st February 2007       25th February 2007     28th February 2007 1st March 2007 2nd March 2007 3rd March 2007

2054

   5th March 2007 6th March 2007 7th March 2007 8th March 2007 9th March 2007 10th March 2007 11th March 2007 12th March 2007 13th March 2007 14th March 2007 15th March 2007 16th March 2007 17th March 2007 18th March 2007 19th March 2007 20th March 2007 21st March 2007       25th March 2007 26th March 2007 27th March 2007 28th March 2007      

2055

 31st March 2007   2nd April 2007   4th April 2007 5th April 2007 6th April 2007 7th April 2007 8th April 2007 9th April 2007 10th April 2007 11th April 2007 12th April 2007   14th April 2007 15th April 2007 16th April 2007 17th April 2007 18th April 2007 19th April 2007 20th April 2007 21st April 2007 22nd April 2007          

2056

   28th April 2007 29th April 2007 30th April 2007 1st May 2007 2nd May 2007   4th May 2007 5th May 2007         10th May 2007   12th May 2007     15th May 2007     18th May 2007 19th May 2007 20th May 2007   22nd May 2007 23rd May 2007  

2057

 24th May 2007 25th May 2007               2nd June 2007 3rd June 2007 4th June 2007 5th June 2007     8th June 2007 9th June 2007 10th June 2007   12th June 2007 13th June 2007   15th June 2007 16th June 2007 17th June 2007 18th June 2007 19th June 2007 20th June 2007

2058

 21st June 2007 22nd June 2007 23rd June 2007   25th June 2007     28th June 2007     1st July 2007   3rd July 2007 4th July 2007   6th July 2007 7th July 2007 8th July 2007 9th July 2007 10th July 2007 11th July 2007 12th July 2007   14th July 2007 15th July 2007   17th July 2007  

2059

 18th July 2007 19th July 2007 20th July 2007 21st July 2007 22nd July 2007   24th July 2007   26th July 2007   28th July 2007   29th July 2007 30th July 2007 1st August 2007 2nd August 2007 3rd August 2007                 12th August 2007 13th August 2007  

2060

     16th August 2007 17th August 2007               25th August 2007 26th August 2007 27th August 2007   29th August 2007 30th August 2007 31st August 2007 1st September 2007 2nd September 2007 3rd September 2007 4th September 2007 5th September 2007 6th September 2007   8th September 2007 9th September 2007  

2061

             16th September 2007   18th September 2007   20th September 2007   22nd September 2007 23rd September 2007 24th September 2007 25th September 2007 26th September 2007 27th September 2007   29th September 2007 30th September 2007       4th October 2007 5th October 2007 5th October 2007  

2062

     10th October 2007 11th October 2007     14th October 2007 15th October 2007   17th October 2007   19th October 2007   21st October 2007   23rd October 2007       27th October 2007   29th October 2007 30th October 2007 31st October 2007 1st November 2007 2nd November 2007    

2063

 4th November 2007   6th November 2007     9th November 2007   11th November 2007 12th November 2007   14th November 2007 15th November 2007 16th November 2007     19th November 2007   21st November 2007 22nd November 2007 23rd November 2007   25th November 2007            

2064

 1st December 2007 2nd December 2007 3rd December 2007               11th December 2007 12th December 2007 13th December 2007   15th December 2007 16th December 2007     19th December 2007     22nd December 2007 23rd December 2007     26th December 2007    

2065

                                                        

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Last updated on 30 March 2007.