mu Cep hitorical observations (see vsnet-obs 31780) sources: 1968TrLen..25...32D DOMBROVSKY V.A., POLYAKOVA T.A., and YAKOVLEVA V.A. Trudy Astron. Obs. Leningrad, 25, 32-48 (1968) On the time changes of the polarization of radiation of some variable stars. 1970TrLen..27....3D DOMBROVSKY V.A., POLYAKOVA T.A., and YAKOVLEVA V.A. Trudy Astron. Obs. Leningrad, 27, 3-18 (1970) Observations of the variability of the polarization of radiation of high-luminosity red variables. 1971TrLen..28...25D DOMBROVSKY V.A., POLYAKOVA T.A., and YAKOVLEVA V.A. Trudy Astron. Obs. Leningrad, 28, 25-32 (1971) Changes in the polarization of red variables of high luminosity. II. 1972TrLen..29...45D DOMBROVSKY V.A., POLYAKOVA T.A., and YAKOVLEVA V.A. Trudy Astron. Obs. Leningrad, 29, 45 (1972) Polarimetric and photometric investigation of variable stars. 1974TrLen..30...89D DOMBROVSKY V.A. and POLYAKOVA T.A. Trudy Astron. Obs. Leningrad, 30, 89-102 (1971) Polarimetric and photometric investigation of variable stars. II. object YYYYMMDD(UT) mag code CEPmu 19650809.92 3.91:V DOM CEPmu 19650817.98 3.96V DOM CEPmu 19650817.98 6.30B DOM CEPmu 19650818.99 3.96V DOM CEPmu 19650818.99 6.31B DOM CEPmu 19650822.00 3.97V DOM CEPmu 19650822.00 6.30B DOM CEPmu 19650822.97 3.95V DOM CEPmu 19650822.97 6.31B DOM CEPmu 19650827.99 3.95V DOM CEPmu 19650827.99 6.30B DOM CEPmu 19650903.97 3.97V DOM CEPmu 19650903.97 6.33B DOM CEPmu 19650905.97 3.99V DOM CEPmu 19650905.97 6.33B DOM CEPmu 19650906.89 3.99V DOM CEPmu 19650906.89 6.33B DOM CEPmu 19650913.98 3.98V DOM CEPmu 19650913.98 6.34B DOM CEPmu 19650914.92 3.99V DOM CEPmu 19650914.92 6.34B DOM CEPmu 19650916.98 4.00V DOM CEPmu 19650916.98 6.34B DOM CEPmu 19650919.93 4.00V DOM CEPmu 19650919.93 6.34B DOM CEPmu 19650921.97 3.98V DOM CEPmu 19650921.97 6.35B DOM CEPmu 19650924.94 4.03V DOM CEPmu 19650924.94 6.35B DOM CEPmu 19650926.99 4.02V DOM CEPmu 19650926.99 6.37B DOM CEPmu 19651003.95 3.97:V DOM CEPmu 19651004.99 4.03V DOM CEPmu 19651004.99 6.38B DOM CEPmu 19651015.84 4.09V DOM CEPmu 19651015.84 6.37B DOM CEPmu 19651027.82 4.11V DOM CEPmu 19651027.82 6.44B DOM CEPmu 19651028.89 4.10V DOM CEPmu 19651028.89 6.43B DOM CEPmu 19651029.81 4.15V DOM CEPmu 19651029.81 6.44B DOM CEPmu 19651104.78 4.14V DOM CEPmu 19651104.78 6.46B DOM CEPmu 19651105.74 4.14V DOM CEPmu 19651105.74 6.46B DOM CEPmu 19651123.77 4.19V DOM CEPmu 19651123.77 6.46B DOM CEPmu 19651128.78 4.21V DOM CEPmu 19651128.78 6.47B DOM CEPmu 19651130.75 4.21V DOM CEPmu 19651130.75 6.46B DOM CEPmu 19660602.00 3.99:V DOM CEPmu 19660603.00 4.00V DOM CEPmu 19660603.00 6.30B DOM CEPmu 19660604.98 4.00V DOM CEPmu 19660604.98 6.38B DOM CEPmu 19660607.97 4.00:V DOM CEPmu 19660609.98 4.00V DOM CEPmu 19660609.98 6.32B DOM CEPmu 19660626.96 3.99V DOM CEPmu 19660626.96 6.31B DOM CEPmu 19660628.93 4.01V DOM CEPmu 19660628.93 6.30B DOM CEPmu 19660704.99 3.96V DOM CEPmu 19660704.99 6.09B DOM CEPmu 19660709.98 4.15V DOM CEPmu 19660709.98 6.17B DOM CEPmu 19660806.94 3.95V DOM CEPmu 19660806.94 6.23B DOM CEPmu 19660828.88 4.04V DOM CEPmu 19660828.88 6.43B DOM CEPmu 19660915.96 4.09V DOM CEPmu 19660915.96 6.53B DOM CEPmu 19660916.94 4.08V DOM CEPmu 19660916.94 6.54B DOM CEPmu 19660917.94 4.08:V DOM CEPmu 19660918.92 4.08V DOM CEPmu 19660918.92 6.54B DOM CEPmu 19661019.75 4.08V DOM CEPmu 19661019.75 6.49B DOM CEPmu 19661022.77 4.15:V DOM CEPmu 19661023.79 4.14:V DOM CEPmu 19661027.00 4.10V DOM CEPmu 19661027.00 6.52B DOM CEPmu 19661101.83 4.14V DOM CEPmu 19661101.83 6.52B DOM CEPmu 19661120.81 4.09V DOM CEPmu 19661120.81 6.54B DOM CEPmu 19670605.98 3.95V DOM CEPmu 19670605.98 6.25B DOM CEPmu 19670612.95 4.03V DOM CEPmu 19670612.95 6.33B DOM CEPmu 19670702.95 4.02V DOM CEPmu 19670702.95 6.33B DOM CEPmu 19670717.89 4.07V DOM CEPmu 19670717.89 6.40B DOM CEPmu 19670726.02 4.08V DOM CEPmu 19670726.02 6.40B DOM CEPmu 19670729.02 4.07V DOM CEPmu 19670729.02 6.39B DOM CEPmu 19670803.01 4.05V DOM CEPmu 19670803.01 6.36B DOM CEPmu 19670809.03 4.11:V DOM CEPmu 19670815.03 4.08V DOM CEPmu 19670815.03 6.41B DOM CEPmu 19670818.98 4.14V DOM CEPmu 19670818.98 6.44B DOM CEPmu 19670822.94 4.09V DOM CEPmu 19670822.94 6.42B DOM CEPmu 19670909.95 4.16V DOM CEPmu 19670909.95 6.46B DOM CEPmu 19670916.98 4.17V DOM CEPmu 19670916.98 6.47B DOM CEPmu 19670925.00 4.19V DOM CEPmu 19670925.00 6.50B DOM CEPmu 19670929.03 4.20V DOM CEPmu 19670929.03 6.50B DOM CEPmu 19671013.83 4.17V DOM CEPmu 19671013.83 6.49B DOM CEPmu 19671022.82 4.21V DOM CEPmu 19671022.82 6.48B DOM CEPmu 19671115.67 4.26V DOM CEPmu 19671115.67 6.50B DOM CEPmu 19671116.68 4.21V DOM CEPmu 19671116.68 6.52B DOM CEPmu 19680204.70 4.21V DOM CEPmu 19680204.70 6.67B DOM CEPmu 19680206.69 4.18V DOM CEPmu 19680206.69 6.69B DOM CEPmu 19680316.08 4.15V DOM CEPmu 19680316.08 6.60B DOM CEPmu 19680317.07 4.16V DOM CEPmu 19680317.07 6.58B DOM CEPmu 19680326.07 4.12V DOM CEPmu 19680326.07 6.56B DOM CEPmu 19680420.01 4.06:V DOM CEPmu 19680426.04 4.07V DOM CEPmu 19680426.04 6.51B DOM CEPmu 19680427.91 3.98:V DOM CEPmu 19680430.01 4.05:V DOM CEPmu 19680430.03 4.06V DOM CEPmu 19680430.03 6.49B DOM CEPmu 19680601.98 3.98V DOM CEPmu 19680601.98 6.45B DOM CEPmu 19680607.94 3.93V DOM CEPmu 19680607.94 6.38B DOM CEPmu 19680609.90 3.93V DOM CEPmu 19680609.90 6.45B DOM CEPmu 19680624.88 3.92V DOM CEPmu 19680624.88 6.43B DOM CEPmu 19680709.98 3.86V DOM CEPmu 19680709.98 6.28B DOM CEPmu 19680715.99 3.91V DOM CEPmu 19680715.99 6.20B DOM CEPmu 19680801.83 3.85:V DOM CEPmu 19680821.92 3.76:V DOM CEPmu 19680822.79 3.84V DOM CEPmu 19680822.79 6.27B DOM CEPmu 19680823.00 3.88:V DOM CEPmu 19680823.98 3.81V DOM CEPmu 19680823.98 6.05B DOM CEPmu 19680904.82 3.84V DOM CEPmu 19680904.82 6.26B DOM CEPmu 19680928.89 3.76:V DOM CEPmu 19680928.89 6.05:B DOM CEPmu 19680929.89 3.75:V DOM CEPmu 19680929.89 6.09:B DOM CEPmu 19681002.76 4.14V DOM CEPmu 19681002.76 6.42B DOM CEPmu 19681010.70 3.87V DOM CEPmu 19681010.70 6.38B DOM CEPmu 19690321.03 4.00:V DOM CEPmu 19690321.03 6.19:B DOM CEPmu 19690426.81 4.40V DOM CEPmu 19690426.81 6.82B DOM CEPmu 19690927.05 3.48V DOM CEPmu 19690927.05 5.56B DOM CEPmu 19690928.89 3.43V DOM CEPmu 19690928.89 5.43B DOM CEPmu 19691026.80 3.98V DOM CEPmu 19691026.80 6.38B DOM CEPmu 19691114.77 4.05V DOM CEPmu 19691114.77 6.37B DOM CEPmu 19700112.75 4.10V DOM CEPmu 19700112.75 6.41B DOM CEPmu 19700128.87 4.09V DOM CEPmu 19700128.87 6.49B DOM CEPmu 19700215.72 4.20V DOM CEPmu 19700215.72 6.54B DOM CEPmu 19700604.92 4.18V DOM CEPmu 19700604.92 6.54B DOM CEPmu 19700714.87 4.22V DOM CEPmu 19700714.87 6.55B DOM CEPmu 19700718.92 4.23V DOM CEPmu 19700718.92 6.55B DOM CEPmu 19700912.92 4.16V DOM CEPmu 19700912.92 6.51B DOM CEPmu 19701113.95 3.97V DOM CEPmu 19701113.95 6.34B DOM CEPmu 19710330.84 3.69V DOM CEPmu 19710330.84 6.18B DOM CEPmu 19710402.85 3.69V DOM CEPmu 19710402.85 6.01B DOM CEPmu 19710406.04 3.61V DOM CEPmu 19710406.04 5.96B DOM CEPmu 19710408.01 3.70V DOM CEPmu 19710408.01 6.13B DOM CEPmu 19710415.90 3.69V DOM CEPmu 19710415.90 6.00B DOM CEPmu 19710607.93 3.58V DOM CEPmu 19710607.93 6.02B DOM CEPmu 19710705.88 3.57V DOM CEPmu 19710705.88 5.96B DOM CEPmu 19710711.89 3.54V DOM CEPmu 19710711.89 6.04B DOM CEPmu 19710809.95 3.66V DOM CEPmu 19710809.95 6.00B DOM CEPmu 19710818.00 3.64V DOM CEPmu 19710818.00 5.92B DOM CEPmu 19710906.06 3.74V DOM CEPmu 19710906.06 6.10B DOM CEPmu 19711001.84 3.73V DOM CEPmu 19711001.84 6.03B DOM CEPmu 19711030.67 3.82V DOM CEPmu 19711030.67 6.18B DOM