F A C U L A A C T I V I T Y 1st quarter 1998 Fwo, Fw, Asf, Psf * 10 Day January February March 1 35 10 493 0 18 10 358 22 25 25 338 23 2 23 17 793 90 32 10 437 113 30 40 380 110 3 33 10 378 0 38 18 410 15 20 30 910 190 4 23 10 380 17 36 16 478 15 25 10 130 -1 5 40 0 300 60 13 20 240 -1 25 20 290 -1 6 37 3 213 20 10 10 90 -1 10 20 180 0 7 -1 -1 -1 -1 28 13 240 10 -1 -1 -1 -1 8 23 0 60 -1 23 7 107 0 15 17 277 0 9 30 0 240 100 27 2 132 23 18 16 235 30 10 27 0 349 70 28 4 184 67 14 24 334 93 11 21 3 338 116 23 15 200 50 18 28 543 40 12 20 2 268 84 13 10 130 40 13 23 363 70 13 15 10 123 30 10 40 260 150 15 20 370 0 14 18 8 248 450 33 20 440 105 50 14 636 60 15 15 10 120 120 15 5 90 90 57 13 430 200 16 15 15 180 35 -1 -1 -1 -1 50 10 390 100 17 14 13 344 10 43 5 445 90 -1 -1 -1 -1 18 20 20 348 0 15 5 108 30 -1 -1 -1 -1 19 30 20 330 60 25 5 185 20 36 19 746 13 20 -1 -1 -1 -1 30 13 290 40 35 20 460 70 21 10 0 100 -1 26 13 301 25 16 27 549 18 22 10 0 93 20 30 10 265 30 16 22 354 35 23 40 30 380 50 35 22 455 35 23 21 666 53 24 30 30 330 50 -1 -1 -1 -1 26 13 393 16 25 26 20 377 124 60 20 520 40 22 12 324 18 26 23 20 563 107 40 0 390 50 20 14 372 34 27 14 10 194 13 -1 -1 -1 -1 -1 -1 -1 -1 28 20 10 170 220 10 20 237 0 13 13 258 33 29 35 5 200 140 -1 -1 -1 -1 14 21 459 32 30 -1 -1 -1 -1 -1 -1 -1 -1 10 19 378 48 31 29 4 283 18 -1 -1 -1 -1 8 18 390 40 Mean: 24 10 293 77 26 12 280 46 23 20 413 53 28 ( 26) days 25 ( 23) days 27 ( 25) 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, F.Brandl, M.Delfs (Wilhelm - Foerster- Observatory, Berlin), M.Holl, E.Junker, 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, 6 May 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.