Provisional sunspot numbers April 2008 +------+----------------+-------------------+-------+--------------+ | | | | | | | Day | Groups | Wolf number | Beck | No. of Obs. | | | | | index | | | | N S Total | N S Total | | N/S T Beck | | | | | | | +------+----------------+-------------------+-------+--------------+ | 01. | 0.0 1.5 1.5 | 0 19 19 | 117 | 6 18 9 | | 02. | 0.0 1.0 1.0 | 0 12 12 | 174 | 7 14 6 | | 03. | 0.0 0.7 0.7 | 0 10 10 | 79 | 7 14 7 | | 04. | 0.0 0.4 0.4 | 0 4 4 | 17 | 5 10 6 | | 05. | 0.0 0.0 0.0 | 0 0 0 | 0 | 4 14 5 | | 06. | 0.0 0.0 0.0 | 0 0 0 | 0 | 9 21 8 | | 07. | 0.0 0.0 0.0 | 0 0 0 | 0 | 6 16 7 | | 08. | 0.0 0.0 0.0 | 0 0 0 | 0 | 9 20 9 | | 09. | 0.0 0.0 0.0 | 0 0 0 | 0 | 7 19 8 | | 10. | 0.0 0.0 0.0 | 0 0 0 | 0 | 7 17 6 | | 11. | 0.0 0.0 0.0 | 0 0 0 | 1 | 6 15 5 | | 12. | 0.0 0.0 0.0 | 0 0 0 | 0 | 8 18 7 | | 13. | 0.0 0.1 0.1 | 0 1 1 | 1 | 8 19 8 | | 14. | 0.0 0.2 0.2 | 0 2 2 | 1 | 7 13 7 | | 15. | 0.0 0.0 0.0 | 0 0 0 | 0 | 6 15 5 | | 16. | 0.0 0.0 0.0 | 0 0 0 | 0 | 9 18 6 | | 17. | 0.0 0.0 0.0 | 0 0 0 | 0 | 8 21 8 | | 18. | 0.0 0.0 0.0 | 0 0 0 | 0 | 8 18 7 | | 19. | 0.0 0.2 0.2 | 0 3 3 | 0 | 6 13 4 | | 20. | 0.0 0.0 0.0 | 0 0 0 | 0 | 7 17 7 | | 21. | 0.0 0.0 0.0 | 0 0 0 | 0 | 7 14 6 | | 22. | 0.6 0.0 0.6 | 8 0 8 | 25 | 7 15 6 | | 23. | 0.7 0.0 0.7 | 9 0 9 | 27 | 9 21 9 | | 24. | 0.5 0.0 0.5 | 5 0 5 | 10 | 7 16 7 | | 25. | 0.0 0.0 0.0 | 0 0 0 | 0 | 7 17 7 | | 26. | 0.0 0.0 0.0 | 0 0 0 | 0 | 7 20 9 | | 27. | 0.0 0.0 0.0 | 0 0 0 | 0 | 10 24 11 | | 28. | 0.0 0.0 0.0 | 0 0 0 | 0 | 6 15 7 | | 29. | 0.0 0.0 0.0 | 0 0 0 | 0 | 6 16 4 | | 30. | 0.0 0.0 0.0 | 0 0 0 | 0 | 10 22 9 | +------+----------------+-------------------+-------+--------------+ | Mean | 0.1 0.1 0.2 | 0.7 1.7 2.4 | 15 | 7 17 7 | +------+----------------+-------------------+-------+--------------+ | Days | 30 30 30 | 30 30 30 | 30 | | +------+----------------+-------------------+-------+--------------+ Based on 510 observations of 31 stations. Araujo,G. L 80 910 29 Kysucka Obs. L2003000 23 Barnes,H. L 76 910 6 Leventhal,M. S2502500 9 Battaiola,R. S 901250 3 Michalovce Obs. L1502250 6 Beltran,G.V. S2001600 23 Moeller,M. L 791000 24 Bretschneider,H.L 63 840 20 Morales,G. S 902000 27 Bulling,A. S 701000 9 Rim. Sobota Obs.L1502250 27 Chudy,M. L 60 700 16 Robeck,G. S2032000 25 Dubois,F. L1252500 26 Ruemmler,F. L 801200 8 Fritsche,S. L 63 840 22 Schott,G.-L. L 80 910 27 Hesse,A. L1001000 19 Schroeder,G. L 751200 24 Hoerenz,M. L 60 700 11 Tiendesprong ObsL 751200 17 Hurbanovo Obs. L1502250 30 Van Slooten,B. L 901300 26 Joppich,H. L 60 900 2 Vstw. Wertheim L1551400 5 Junker,E. L 50 600 10 Willi,X. S2001320 6 Kaczmarek,A. L 80 400 5 Wollenhaupt,G. L 80 600 6 Kandilli Obs. L2003070 19