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.

2013

2014

2015

2016

2017

Cycles 23 &24

 

 

 

 

 

 

Rotation

                                                       

2173


23rd January 2016
24th January 2016



28th January 2016

30th January 2016


2nd February 2016

7th February 2016

9th February 2016
11th February 2016

14th February 2016

16th February 2016 17th February 2016

2174

18th February 2016
19th February 2016


23rd February 2016
24th February 2016 25th February 2016 26th February 2016
28th February 2016
29th February 2016
















2175


























2176




























2177




























2178




























2179

























2180
























2181


 









 

   





 
     

2182


 
 
   
 
 
       




       
   

2183

       

 


     

   

   
   
 

2184



           

     
       

               

2185

                                                       

Page created on 24 January 2016.