F A C U L A A C T I V I T Y 2nd quarter 2001 Fwo, Fw, Asf, Psf * 10 Day April May June 1 30 29 776 60 30 30 1142 27 55 20 530 190 2 28 26 859 33 37 34 1276 43 10 20 250 -1 3 23 37 790 80 24 33 1027 53 42 24 836 60 4 12 50 672 50 55 30 775 100 30 13 343 -1 5 12 40 1262 50 60 60 920 90 20 23 420 -1 6 25 50 560 50 20 20 370 -1 3 23 330 -1 7 7 33 437 90 28 38 675 65 20 30 485 -1 8 20 27 513 0 38 28 538 40 40 20 440 -1 9 23 23 968 -1 47 17 1216 23 55 35 635 120 10 10 0 80 -1 39 16 886 83 50 23 483 130 11 55 20 455 70 38 18 958 58 17 27 320 -1 12 48 18 718 90 30 20 894 73 15 38 435 -1 13 17 27 533 -1 38 16 996 73 19 46 506 25 14 20 30 1030 10 48 18 800 70 30 40 678 70 15 60 50 830 60 47 23 610 70 22 38 826 63 16 30 10 240 -1 26 36 980 30 13 28 383 90 17 -1 -1 -1 -1 8 35 728 25 20 37 1123 90 18 -1 -1 -1 -1 -1 -1 -1 -1 33 8 748 -1 19 40 20 925 120 24 38 1158 17 35 15 495 105 20 34 12 666 85 38 26 1096 60 30 20 620 90 21 30 20 670 -1 34 20 874 60 20 20 435 20 22 20 30 625 160 36 24 900 37 15 20 345 -1 23 38 14 648 0 27 19 517 40 17 33 707 -1 24 27 17 698 65 46 12 750 120 16 39 1216 90 25 20 17 827 -1 40 14 635 40 21 24 1003 0 26 22 24 582 0 30 23 721 23 33 21 880 97 27 28 20 375 60 17 13 327 -1 37 21 853 137 28 25 38 575 60 20 20 330 -1 38 35 968 80 29 33 27 752 30 37 28 805 50 20 24 344 70 30 16 24 1189 50 38 24 738 0 15 35 1140 20 31 -1 -1 -1 -1 30 20 420 -1 -1 -1 -1 -1 Mean: 27 26 688 58 34 25 802 53 26 27 626 81 28 ( 22) Days 30 ( 26) Days 30 ( 19) Days Explanation of the data: Fwo - number of area shaped facula regions without spots; Fw - number of area shaped facula regions with spots; Asf - total number of the individual faculae observed inside of the fwo- and the fw-areas only; Psf - total number of the single point shaped faculae observed outside of the fwo- and fw-areas only and without the polar faculae. The value "-1" means a observation was not made. All other numbers are the daily means of all observers multiplied by 10. Observers: F.Brandl, H.Bretschneider, M.Delfs ( WFS-Berlin ), M.Holl, E.Junker, A.Reszin, B.Schmidt, H.Stetter, M.Szulc, A.Winzer, M.Winzer Instruments: Refractors and reflectors from 50/600 to 150/2250 mm (apertures between 2 and 6 inches) Compilation and data processing: Michael Delfs, 18 July 2001 Special thanks to the "Berliner Letteverein" (vocational school in Ber- lin's district Tempelhof-Schoeneberg) for using the VAX-computer in the electronic and data engineering compartment.