Provisional sunspot numbers February 2021 +------+----------------+-------------------+-------+--------------+ | | | | | | | Day | Groups | Wolf number | Beck | No. of Obs. | | | | | index | | | | N S Total | N S Total | | N/S T Beck | | | | | | | +------+----------------+-------------------+-------+--------------+ | 01. | 0.0 0.1 0.1 | 0 1 1 | 0 | 3 9 4 | | 02. | 0.3 0.0 0.3 | 4 0 4 | 4 | 3 6 2 | | 03. | 0.5 0.0 0.5 | 6 0 6 | 3 | 1 4 3 | | 04. | 0.0 0.0 0.0 | 0 0 0 | 0 | 6 10 2 | | 05. | 0.0 0.0 0.0 | 0 0 0 | 0 | 2 5 1 | | 06. | 0.0 0.0 0.0 | 0 0 0 | - | 1 5 0 | | 07. | 0.0 0.0 0.0 | 0 0 0 | - | 1 4 0 | | 08. | 0.0 0.2 0.2 | 0 3 3 | 9 | 3 6 1 | | 09. | 0.0 0.1 0.1 | 0 1 1 | 1 | 3 11 4 | | 10. | 0.0 0.0 0.0 | 0 0 0 | 0 | 3 15 6 | | 11. | 0.0 0.0 0.0 | 0 0 0 | 0 | 7 20 9 | | 12. | 0.0 0.0 0.0 | 0 0 0 | 0 | 8 19 9 | | 13. | 0.0 0.1 0.1 | 0 1 1 | 0 | 7 22 9 | | 14. | 0.0 0.0 0.0 | 0 0 0 | 0 | 7 23 10 | | 15. | 0.0 0.0 0.0 | 0 0 0 | 0 | 4 9 3 | | 16. | 0.0 0.0 0.0 | 0 0 0 | 0 | 1 6 2 | | 17. | 0.1 0.0 0.1 | 2 0 2 | 5 | 4 10 6 | | 18. | 0.5 0.0 0.5 | 6 0 6 | 8 | 6 18 9 | | 19. | 0.6 0.0 0.6 | 6 0 6 | 16 | 5 20 9 | | 20. | 0.6 0.0 0.6 | 7 0 7 | 17 | 5 20 9 | | 21. | 0.6 0.1 0.7 | 7 1 8 | 9 | 6 22 9 | | 22. | 0.7 0.3 1.0 | 10 3 13 | 31 | 8 24 12 | | 23. | 0.8 0.8 1.6 | 13 14 27 | 227 | 7 22 12 | | 24. | 0.8 0.8 1.6 | 17 12 29 | 368 | 9 26 14 | | 25. | 0.9 0.8 1.6 | 17 9 26 | 331 | 9 26 14 | | 26. | 0.8 0.0 0.8 | 13 0 13 | 185 | 7 23 13 | | 27. | 0.8 0.0 0.8 | 12 0 12 | 104 | 3 11 5 | | 28. | 0.6 0.0 0.6 | 7 0 7 | 38 | 5 19 9 | +------+----------------+-------------------+-------+--------------+ | Mean | 0.3 0.1 0.4 | 4.5 1.6 6.1 | 52 | 5 15 7 | +------+----------------+-------------------+-------+--------------+ | Days | 28 28 28 | 28 28 28 | 26 | | +------+----------------+-------------------+-------+--------------+ Based on 415 observations of 28 stations. Araujo,G. L 80 910 28 Hurbanovo Obs. L1502250 21 Barnes,H. L 76 910 12 Joppich,H. L 60 900 8 Barsch,T. L1021000 17 Junker,E. L 50 600 7 Battaiola,R. S 901250 6 Kaczmarek,A. L 80 400 7 Beltran,G.V. S2001600 24 Meister,S. L125 800 7 Brettel,G. L 901000 14 Michalovce Obs. L1502250 7 Broeckels,G. L 57 242 18 Morales,G. S 902000 24 Broeckels,G. L1521200 18 Rim. Sobota Obs.L1502250 9 Bruegger,S. L 80 400 14 Rockmann,K. L 901200 14 Chudy,M. L 60 700 16 Ruemmler,F. L 801200 16 Daub,K.-P. L1521200 14 Schroeder,G. L 751200 18 Fritsche,S. L 63 840 17 Seiffert,H.-P. L100 500 7 Hoerenz,M. L 60 700 16 Suzuki,M. L100 0 25 Holl,M. L 80 400 15 Tiendesprong ObsL 751200 16