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Apr 9 · Sunspot number: 79 What is the sunspot number? Updated 09 Apr 2024 Spotless Days Current Stretch: 0 days 2024 total: 0 days (0%) 2023 total: 0 days (0%) 2022 total: 1 day (<1%) 2021 total: 64 days (18%) 2020 total: 208 days (57%) 2019 total: 281 days (77%) 2018 total: 221 days (61%) 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%) 2008 total: 268 days (73%) 2007 total: 152 days (42%) 2006 total: 70 days (19%) Updated 09 Apr 2024 Thermosphere Climate Index today: 19.37x1010 W Warm Max: ... Read more ...
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