Provisional sunspot numbers May 2010 +------+----------------+-------------------+-------+--------------+ | | | | | | | Day | Groups | Wolf number | Beck | No. of Obs. | | | | | index | | | | N S Total | N S Total | | N/S T Beck | | | | | | | +------+----------------+-------------------+-------+--------------+ | 01. | 0.8 0.0 0.8 | 9 0 9 | 13 | 8 18 11 | | 02. | 0.4 0.1 0.5 | 5 1 6 | 5 | 5 13 8 | | 03. | 1.3 0.8 2.1 | 16 11 27 | 98 | 5 12 6 | | 04. | 1.5 1.6 3.0 | 18 21 39 | 97 | 5 15 6 | | 05. | 2.6 0.1 2.7 | 36 1 37 | 204 | 6 17 6 | | 06. | 1.4 0.4 1.8 | 21 5 26 | 291 | 3 8 2 | | 07. | 0.9 0.4 1.3 | 12 4 16 | 39 | 4 8 5 | | 08. | 0.3 0.1 0.4 | 3 2 5 | 33 | 6 14 4 | | 09. | 0.0 0.1 0.1 | 0 1 1 | 1 | 8 17 5 | | 10. | 0.0 0.0 0.0 | 0 0 0 | 0 | 4 12 5 | | 11. | 0.0 0.0 0.0 | 0 0 0 | 0 | 6 13 7 | | 12. | 0.0 0.0 0.0 | 0 0 0 | 0 | 2 8 3 | | 13. | 0.0 0.0 0.0 | 0 0 0 | 0 | 4 8 4 | | 14. | 0.0 0.0 0.0 | 0 0 0 | 0 | 5 11 4 | | 15. | 0.0 0.0 0.0 | 0 0 0 | 0 | 3 9 2 | | 16. | 0.0 0.0 0.0 | 0 0 0 | 0 | 7 20 7 | | 17. | 0.0 0.0 0.0 | 0 0 0 | 0 | 7 17 8 | | 18. | 0.0 0.0 0.0 | 0 0 0 | 0 | 3 14 4 | | 19. | 0.0 0.0 0.0 | 0 0 0 | 0 | 3 13 6 | | 20. | 0.0 0.0 0.0 | 0 0 0 | 0 | 4 12 5 | | 21. | 0.1 0.7 0.7 | 1 10 11 | 48 | 9 21 10 | | 22. | 0.0 0.8 0.8 | 0 18 18 | 177 | 8 23 9 | | 23. | 0.0 0.8 0.8 | 0 18 18 | 229 | 10 24 11 | | 24. | 0.0 1.0 1.0 | 0 16 16 | 109 | 10 25 12 | | 25. | 0.0 1.2 1.2 | 0 15 15 | 83 | 10 24 12 | | 26. | 0.3 0.8 1.1 | 4 8 12 | 56 | 6 14 6 | | 27. | 0.1 0.8 0.9 | 1 9 10 | 63 | 9 18 10 | | 28. | 0.1 0.7 0.7 | 1 7 8 | 53 | 10 21 9 | | 29. | 0.8 0.6 1.4 | 10 7 17 | 37 | 7 20 8 | | 30. | 0.9 0.7 1.6 | 11 9 20 | 40 | 5 15 5 | | 31. | 0.4 0.2 0.5 | 4 2 6 | 4 | 2 11 3 | +------+----------------+-------------------+-------+--------------+ | Mean | 0.4 0.4 0.8 | 4.9 5.3 10.2 | 54 | 6 15 7 | +------+----------------+-------------------+-------+--------------+ | Days | 31 31 31 | 31 31 31 | 31 | | +------+----------------+-------------------+-------+--------------+ Based on 475 observations of 30 stations. Araujo,G. L 80 910 31 Junker,E. L 50 600 12 Barnes,H. L 76 910 9 Kaczmarek,A. L 80 400 7 Battaiola,R. S 901250 6 Michalovce Obs. L1502250 11 Beltran,G.V. S2001600 27 Moeller,M. L 791000 16 Bretschneider,H.L 63 840 17 Morales,G. S 902000 27 Bruegger,S. L 80 400 17 Rim. Sobota Obs.L1502250 21 Bullon,J.M. L1201000 18 Robeck,G. S2032000 20 Chudy,M. L 60 700 16 Ruemmler,F. L 801200 13 Dubois,F. L1252500 27 Schott,G.-L. L 80 910 26 Fritsche,S. L 63 840 16 Schroeder,G. L 751200 10 Gieseke,R. F 50 300 9 Suzuki,M. L100 0 24 Hoerenz,M. L 60 700 9 Tiendesprong ObsL 751200 12 Holl,M. L 80 400 15 Van Slooten,B. L 901300 23 Hurbanovo Obs. L1502250 20 WFS,Berlin L1502250 6 Joppich,H. L 60 900 3 Willi,X. S2001320 7