Provisional sunspot numbers December 2020 +------+----------------+-------------------+-------+--------------+ | | | | | | | Day | Groups | Wolf number | Beck | No. of Obs. | | | | | index | | | | N S Total | N S Total | | N/S T Beck | | | | | | | +------+----------------+-------------------+-------+--------------+ | 01. | 0.3 2.7 3.0 | 3 39 42 | 540 | 2 5 2 | | 02. | 0.0 2.3 2.3 | 0 33 33 | 746 | 7 14 6 | | 03. | 0.0 2.3 2.3 | 0 32 32 | 288 | 3 6 1 | | 04. | 0.0 2.1 2.1 | 0 26 26 | - | 4 8 0 | | 05. | 0.0 1.9 1.9 | 0 24 24 | 174 | 5 9 3 | | 06. | 0.0 1.5 1.5 | 0 18 18 | 82 | 2 4 2 | | 07. | 0.0 1.2 1.2 | 0 14 14 | 56 | 5 9 2 | | 08. | 0.0 0.8 0.8 | 0 9 9 | 65 | 3 12 3 | | 09. | 0.0 0.9 0.9 | 0 9 9 | 41 | 4 8 4 | | 10. | 0.0 0.7 0.7 | 0 8 8 | - | 1 4 0 | | 11. | 0.0 0.8 0.8 | 0 9 9 | - | 2 4 0 | | 12. | 0.0 0.7 0.7 | 0 8 8 | - | 2 5 0 | | 13. | 0.0 0.6 0.6 | 0 7 7 | 0 | 1 5 1 | | 14. | 0.0 0.7 0.7 | 0 9 9 | 39 | 4 11 3 | | 15. | 0.0 1.0 1.0 | 0 12 12 | 23 | 2 7 1 | | 16. | 0.0 0.9 0.9 | 0 11 11 | 31 | 6 16 4 | | 17. | 0.0 0.7 0.7 | 0 8 8 | 6 | 4 11 2 | | 18. | 0.0 0.3 0.3 | 0 4 4 | 5 | 7 21 9 | | 19. | 0.0 0.0 0.0 | 0 0 0 | 0 | 5 19 7 | | 20. | 0.0 0.5 0.5 | 0 5 5 | 0 | 1 7 1 | | 21. | 0.0 0.8 0.8 | 0 9 9 | 46 | 2 14 5 | | 22. | 0.0 0.8 0.8 | 0 9 9 | 104 | 3 9 2 | | 23. | 0.0 1.5 1.5 | 0 17 17 | 97 | 2 6 1 | | 24. | - - 1.6 | - - 21 | - | 0 4 0 | | 25. | 0.0 1.5 1.5 | 0 22 22 | 320 | 5 18 9 | | 26. | 0.0 1.7 1.7 | 0 24 24 | 375 | 4 10 5 | | 27. | 0.0 1.6 1.6 | 0 23 23 | 295 | 3 9 4 | | 28. | 0.0 1.5 1.5 | 0 21 21 | 257 | 5 13 7 | | 29. | 0.0 1.4 1.4 | 0 20 20 | 328 | 4 11 5 | | 30. | 0.0 1.4 1.4 | 0 20 20 | 346 | 2 6 1 | | 31. | 0.1 1.6 1.8 | 1 21 22 | 153 | 5 10 4 | +------+----------------+-------------------+-------+--------------+ | Mean | 0.0 1.2 1.2 | 0.1 15.7 16.0 | 170 | 4 10 4 | +------+----------------+-------------------+-------+--------------+ | Days | 30 30 31 | 30 30 31 | 26 | | +------+----------------+-------------------+-------+--------------+ Based on 295 observations of 28 stations. Araujo,G. L 80 910 28 Holl,M. L 80 400 5 Barnes,H. L 76 910 12 Hurbanovo Obs. L1502250 11 Barsch,T. L1021000 10 Joppich,H. L 60 900 5 Battaiola,R. S 901250 2 Junker,E. L 50 600 9 Beltran,G.V. S2001600 29 Kaczmarek,A. L 80 400 4 Brauckhoff,D. L115 800 17 Michalovce Obs. L1502250 4 Brettel,G. L 901000 6 Morales,G. S 902000 25 Broeckels,G. L 57 242 7 Rim. Sobota Obs.L1502250 2 Broeckels,G. L1521200 8 Rothermel,J. L1001650 5 Bruegger,S. L 80 400 6 Ruemmler,F. L 801200 13 Chudy,M. L 60 700 6 Schroeder,G. L 751200 13 Daub,K.-P. L1521200 7 Seiffert,H.-P. L100 500 5 Fritsche,S. L 63 840 10 Suzuki,M. L100 0 29 Hoerenz,M. L 60 700 12 Tiendesprong ObsL 751200 5