F A C U L A A C T I V I T Y 4th quarter 1997 Fwo, Fw, Asf, Psf * 10 Day October November December 1 25 20 430 -1 30 3 372 133 30 0 110 35 2 20 20 480 45 13 3 183 105 -1 -1 -1 -1 3 23 19 463 0 27 7 325 40 -1 -1 -1 -1 4 20 7 163 120 18 13 218 45 0 0 0 -1 5 23 3 257 100 20 10 150 70 47 10 300 140 6 26 1 364 93 0 20 20 -1 3 7 100 0 7 22 3 182 55 12 13 155 45 3 10 107 65 8 20 10 160 20 0 13 77 20 -1 -1 -1 -1 9 20 3 70 -1 15 13 190 25 37 7 203 -1 10 20 0 210 0 12 12 234 55 -1 -1 -1 -1 11 20 0 127 -1 13 15 210 -1 -1 -1 -1 -1 12 25 8 299 53 0 0 0 -1 10 30 260 90 13 30 13 253 100 3 10 50 0 10 10 70 -1 14 17 17 487 35 20 20 240 30 20 23 303 40 15 25 10 300 80 17 17 260 0 -1 -1 -1 -1 16 23 23 290 160 20 13 197 -1 10 22 134 10 17 20 25 560 55 5 13 88 25 13 23 157 0 18 18 19 390 17 5 10 135 0 33 3 160 10 19 31 4 530 122 14 6 116 7 15 0 70 20 20 10 0 30 -1 18 0 120 40 30 20 250 40 21 29 0 264 34 20 5 245 -1 -1 -1 -1 -1 22 22 0 150 10 0 0 0 -1 -1 -1 -1 -1 23 17 0 140 105 0 10 10 -1 -1 -1 -1 -1 24 34 0 300 57 0 10 60 0 30 30 440 -1 25 24 8 154 80 13 20 267 75 25 12 385 15 26 38 8 328 -1 20 13 197 15 27 10 467 67 27 27 13 344 105 0 10 40 -1 5 0 100 -1 28 32 14 274 70 0 10 50 -1 -1 -1 -1 -1 29 17 10 103 15 13 5 128 0 -1 -1 -1 -1 30 18 3 153 15 -1 -1 -1 -1 16 8 430 185 31 18 2 136 10 -1 -1 -1 -1 18 10 208 0 Mean: 23 9 271 60 11 10 149 37 19 12 213 48 31 (26) days 29 (20) days 20 (15) 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: D.Bannuscher, H.Bretschneider, M.Delfs (Wilhelm - Foerster - Observatory, Berlin), M.Holl, E.Junker, J.Porto, A.Reszin, 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, 29 January 1998 Special thanks to the "Berliner Letteverein" (vocational school in Ber- lin's district Schoeneberg) for using the VAX-computer in the elec- tronic and data engineering compartment.