Provisional sunspot numbers February 2023 +------+----------------+-------------------+-------+--------------+ | | | | | | | Day | Groups | Wolf number | Beck | No. of Obs. | | | | | index | | | | N S Total | N S Total | | N/S T Beck | | | | | | | +------+----------------+-------------------+-------+--------------+ | 01. | 2.4 2.0 4.3 | 29 30 59 | 321 | 3 8 3 | | 02. | 2.3 1.7 4.0 | 28 30 58 | 415 | 1 10 3 | | 03. | - - 4.6 | - - 67 | 370 | 0 4 2 | | 04. | 1.3 2.4 3.7 | 17 43 60 | 553 | 3 17 7 | | 05. | 1.2 3.5 4.7 | 20 55 75 | 550 | 1 5 2 | | 06. | 3.5 3.0 6.5 | 50 44 94 | 799 | 2 10 4 | | 07. | 3.5 2.4 5.8 | 61 28 89 | 872 | 4 22 9 | | 08. | 3.7 2.5 6.2 | 68 30 98 | 1143 | 5 21 10 | | 09. | 4.2 2.2 6.4 | 77 29 106 | 1511 | 4 14 6 | | 10. | 5.4 1.9 7.3 | 87 34 121 | 1851 | 3 9 4 | | 11. | 5.5 3.2 8.7 | 91 47 138 | 1811 | 1 5 2 | | 12. | - - 8.5 | - - 133 | 2014 | 0 5 2 | | 13. | 5.0 3.9 9.0 | 79 57 136 | 1356 | 2 9 3 | | 14. | 4.4 3.6 8.0 | 69 51 120 | 1201 | 4 19 6 | | 15. | 3.6 2.8 6.4 | 57 39 96 | 1000 | 3 13 7 | | 16. | 2.3 2.9 5.3 | 41 38 79 | 787 | 3 8 3 | | 17. | - - 5.6 | - - 80 | 664 | 0 4 1 | | 18. | - - 6.2 | - - 93 | 1102 | 0 4 1 | | 19. | 2.0 3.4 5.4 | 49 39 88 | 1458 | 1 15 6 | | 20. | 3.6 2.1 5.7 | 57 24 81 | 916 | 2 9 2 | | 21. | 3.3 1.4 4.7 | 62 18 80 | 976 | 2 8 2 | | 22. | 2.5 1.5 3.9 | 49 20 69 | 1327 | 3 11 6 | | 23. | - - 4.3 | - - 78 | 1457 | 0 6 1 | | 24. | - - 4.5 | - - 94 | 2465 | 0 7 3 | | 25. | 3.0 2.3 5.3 | 61 43 104 | 2002 | 3 12 3 | | 26. | 2.4 2.6 5.0 | 53 44 97 | 2019 | 3 15 4 | | 27. | 2.8 2.6 5.4 | 52 44 96 | 1747 | 4 16 5 | | 28. | 2.2 2.3 4.5 | 40 35 75 | 1382 | 4 20 7 | +------+----------------+-------------------+-------+--------------+ | Mean | 3.2 2.6 5.7 | 54.4 37.4 91.6 | 1217 | 3 11 4 | +------+----------------+-------------------+-------+--------------+ | Days | 22 22 28 | 22 22 28 | 28 | | +------+----------------+-------------------+-------+--------------+ Based on 306 observations of 26 stations. Araujo,G. L 80 910 27 Kaczmarek,A. L 80 400 7 Barsch,T. L1021000 13 Maluf,W. L1021500 5 Beltran,G.V. S2001600 18 Meister,S. L125 800 5 Brettel,G. L 901000 16 Michalovce Obs. L1502250 7 Broeckels,G. L1521200 9 Moeller,M. S 0 0 28 Bruegger,S. L 80 400 13 Rockmann,K. L 901200 9 Chudy,M. L 60 700 2 Ruemmler,F. L 801200 15 Daub,K.-P. L1521200 13 Schroeder,G. S 0 0 28 Fritsche,S. L 63 840 15 Seiffert,H.-P. L100 500 8 Hermelingmeier,HL 80 600 7 Sinnecker,S. L 81 0 9 Hoerenz,M. L 60 700 8 Steen,M. L 80 400 8 Joppich,H. L102 714 11 Stoyan,R. L 50 540 7 Junker,E. L 50 600 8 Tiendesprong ObsL 751200 10