Provisional sunspot numbers April 2019 +------+----------------+-------------------+-------+--------------+ | | | | | | | Day | Groups | Wolf number | Beck | No. of Obs. | | | | | index | | | | N S Total | N S Total | | N/S T Beck | | | | | | | +------+----------------+-------------------+-------+--------------+ | 01. | 0.7 0.0 0.7 | 10 0 10 | 61 | 8 23 10 | | 02. | 0.8 0.0 0.8 | 12 0 12 | 81 | 7 16 5 | | 03. | 0.7 0.0 0.7 | 12 0 12 | 88 | 8 14 8 | | 04. | 0.4 0.0 0.4 | 6 0 6 | 13 | 5 14 7 | | 05. | 0.3 0.0 0.3 | 3 0 3 | 4 | 5 11 4 | | 06. | 0.1 0.0 0.1 | 1 0 1 | 1 | 5 20 8 | | 07. | 0.7 0.0 0.7 | 8 0 8 | 69 | 7 22 10 | | 08. | 0.8 0.0 0.8 | 9 0 9 | 77 | 9 21 10 | | 09. | 0.8 0.0 0.8 | 9 0 9 | 108 | 7 18 9 | | 10. | 0.7 0.0 0.7 | 10 0 10 | 130 | 7 17 7 | | 11. | 0.8 0.0 0.8 | 10 0 10 | - | 4 9 0 | | 12. | 0.8 0.0 0.8 | 10 0 10 | 193 | 2 9 4 | | 13. | 0.8 0.0 0.8 | 10 0 10 | 87 | 4 13 4 | | 14. | 0.8 0.0 0.8 | 10 0 10 | 89 | 2 9 4 | | 15. | 0.7 0.0 0.7 | 9 0 9 | 119 | 9 22 10 | | 16. | 0.7 0.0 0.7 | 8 0 8 | 90 | 7 21 9 | | 17. | 1.0 0.1 1.1 | 11 2 13 | 101 | 6 18 8 | | 18. | 1.5 0.0 1.5 | 18 0 18 | 138 | 8 22 10 | | 19. | 1.5 0.0 1.5 | 17 0 17 | 83 | 7 23 11 | | 20. | 0.7 0.0 0.7 | 8 0 8 | 8 | 6 21 10 | | 21. | 0.2 0.0 0.2 | 2 0 2 | 1 | 7 22 9 | | 22. | 0.0 0.0 0.0 | 0 0 0 | 0 | 6 20 9 | | 23. | 0.0 0.0 0.0 | 0 0 0 | 0 | 6 17 7 | | 24. | 0.0 0.0 0.0 | 0 0 0 | 0 | 6 19 8 | | 25. | 0.0 0.0 0.0 | 0 0 0 | 0 | 7 19 8 | | 26. | 0.0 0.0 0.0 | 0 0 0 | 0 | 5 15 8 | | 27. | 0.0 0.0 0.0 | 0 0 0 | 0 | 6 18 6 | | 28. | 0.0 0.0 0.0 | 0 0 0 | 0 | 4 15 7 | | 29. | 0.0 0.0 0.0 | 0 0 0 | 0 | 1 10 7 | | 30. | 0.0 0.0 0.0 | 0 0 0 | 0 | 6 18 7 | +------+----------------+-------------------+-------+--------------+ | Mean | 0.5 0.0 0.5 | 6.4 0.1 6.5 | 53 | 6 17 8 | +------+----------------+-------------------+-------+--------------+ | Days | 30 30 30 | 30 30 30 | 29 | | +------+----------------+-------------------+-------+--------------+ Based on 516 observations of 27 stations. Araujo,G. L 80 910 30 Junker,E. L 50 600 12 Barnes,H. L 76 910 21 Kaczmarek,A. L 80 400 12 Battaiola,R. S 901250 6 Kysucka Obs. L2003000 14 Beltran,G.V. S2001600 28 Meister,S. L125 800 11 Brauckhoff,D. S2032032 25 Michalovce Obs. L1502250 10 Broeckels,G. L 57 242 25 Morales,G. S 902000 27 Bruegger,S. L 80 400 25 Rim. Sobota Obs.L1502250 11 Chudy,M. L 60 700 13 Rockmann,K. L 901200 17 Daub,K.-P. L1521200 22 Ruemmler,F. L 801200 24 Fritsche,S. L 63 840 22 Schroeder,G. L 751200 17 Hoerenz,M. L 60 700 25 Suzuki,M. L100 0 22 Holl,M. L 80 400 27 Tiendesprong ObsL 751200 20 Hurbanovo Obs. L1502250 25 Wiley,J. L102 500 16 Joppich,H. L 60 900 9