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Sunspot number: 160 What is the sunspot number? Updated 06 Apr 2025 Spotless Days Current Stretch: 0 days 2025 total: 0 days (0%) 2024 total: 0 days (0%) 2023 total: 0 days (0%) 2022 total: 1 day ( The Radio Sun 10.7 cm flux: 184 sfu explanation | more data Updated 06 Apr 2025 Polar Stratospheric Clouds Colorful Type I
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Spaceweather.com - realtime news about the Sun-Earth environment
1+ week, 5+ day ago (848+ words) Spotless Days Current Stretch: 0 days 2026 total: 3 days (1%) 2025 total: 0 days (0%) 2024 total: 0 days (0%) 2023 total: 0 days (0%) 2022 total: 1 day ( The Radio Sun 10.7 cm flux: 107 sfu explanation | more data Updated 01 Sep 2026 This is an AI Free Zone: AI writing is everywhere -- except here. Spaceweather.com…...