Delta 2 steroid results

Sunspot number: 13
What is the sunspot number?
Updated 17 Jan 2018

Spotless Days
Current Stretch: 0 days
2018 total: 7 days (41%)
2017 total: 104 days (28%)
2016 total: 32 days (9%)
2015 total: 0 days (0%)
2014 total: 1 day (<1%)
2013 total: 0 days (0%)
2012 total: 0 days (0%)
2011 total: 2 days (<1%)
2010 total: 51 days (14%)
2009 total: 260 days (71%)
Updated 17 Jan 2018

The Radio Sun
cm flux: 71 sfu
explanation | more data
Updated 17 Jan 2018

Delta 2 steroid results

delta 2 steroid results

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