|
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
Last updated on 30 March 2007. |
|
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
Last updated on 30 March 2007. |
,
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.
