mu Cephei historical photometric data source: 1966CoLPL...4...99J JOHNSON H.L., MITCHELL R.I., IRIARTE B., and WISNIEWSKI W.Z. Comm. Lunar Plan. Lab., 4, 99-110 (1966) UBVRIJKL photometry of the bright stars. JD V B-V 2438284.74 4.22 2.26 2438310.71 4.15 2.28 2438315.75 4.13 2.26 2438579.83 3.55 2.40 2438699.64 3.73 2.38 2438700.65 3.73 2.38 source: 1968AJ.....73...20C COYNE G.V. and KRUSZEWSKI A. Astron. J., 73, 20 (1968) Wavelength dependence of polarization. XI. mu Cephei. JD V B-V 2439051.64 4.07 2.34 2439376.67 4.01 2.35 2439391.74 4.06 2.35 2439407.70 4.09 2.36 2439409.66 4.07 2.35 2439443.70 4.09 2.36 2439459.60 4.07 2.34 2439468.57 4.10 2.34 2439502.57 4.13 2.36 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. JD V B-V 2438982.42 3.91: 2438990.48 3.96 2.34 2438991.49 3.96 2.35 2438994.50 3.97 2.33 2438995.47 3.95 2.36 2439000.49 3.95 2.35 2439007.47 3.97 2.36 2439009.47 3.99 2.34 2439010.39 3.99 2.34 2439017.48 3.98 2.36 2439018.42 3.99 2.35 2439020.48 4.00 2.34 2439023.43 4.00 2.34 2439025.47 3.98 2.37 2439028.44 4.03 2.32 2439030.49 4.02 2.35 2439037.45 3.97: 2439038.49 4.03 2.35 2439049.34 4.09 2.28 2439061.32 4.11 2.33 2439062.39 4.10 2.33 2439063.31 4.15 2.29 2439069.28 4.14 2.32 2439070.24 4.14 2.32 2439088.27 4.19 2.27 2439093.28 4.21 2.26 2439095.25 4.21 2.25 2439278.50 3.99: 2439279.50 4.00 2.30 2439281.48 4.00 2.38 2439284.47 4.00: 2439286.48 4.00 2.32 2439303.46 3.99 2.32 2439305.43 4.01 2.29 2439311.49 3.96 2.13 2439316.48 4.15 2.02 2439344.44 3.95 2.28 2439366.38 4.04 2.39 2439384.46 4.09 2.44 2439385.44 4.08 2.46 2439386.44 4.08: 2439387.42 4.08 2.46 2439418.25 4.08 2.41 2439421.27 4.15: 2439422.29 4.14: 2439425.50 4.10 2.42 2439431.33 4.14 2.38 2439450.31 4.09 2.45 2439647.48 3.95 2.30 2439654.45 4.03 2.30 2439674.45 4.02 2.31 2439689.39 4.07 2.33 2439697.52 4.08 2.32 2439700.52 4.07 2.32 2439705.51 4.05 2.31 2439711.53 4.11: 2439717.53 4.08 2.33 2439721.48 4.14 2.30 2439725.44 4.09 2.33 2439743.45 4.16 2.30 2439750.48 4.17 2.30 2439758.50 4.19 2.31 2439762.53 4.20 2.30 2439777.33 4.17 2.32 2439786.32 4.21 2.27 2439810.17 4.26 2.24 2439811.18 4.21 2.31 2439891.20 4.21 2.46 2439893.19 4.18 2.51 2439931.58 4.15 2.45 2439932.57 4.16 2.42 2439941.57 4.12 2.44 2439966.51 4.06: 2439972.54 4.07 2.44 2439974.41 3.98: 2439976.51 4.05: 2439976.53 4.06 2.43 2440009.48 3.98 2.47 2440015.44 3.93 2.45 2440017.40 3.93 2.52 2440032.38 3.92 2.51 2440047.48 3.86 2.42 2440053.49 3.91 2.29 2440070.33 3.85: 2440090.42 3.76: 2440091.29 3.84 2.43 2440091.50 3.88: 2440092.48 3.81 2.24: 2440104.32 3.84 2.42 2440128.39 3.76: 2.29: 2440129.39 3.75: 2.34: 2440132.26 4.14 2.28 2440140.20 3.87 2.51 2440301.53 4.00: 2.19: 2440338.31 4.40 2.42 2440491.55 3.48 2.08 2440493.39 3.43 2.00 2440521.30 3.98 2.40 2440540.27 4.05 2.32 2440599.25 4.10 2.31 2440615.37 4.09 2.40 2440633.22 4.20 2.34 2440742.42 4.18 2.36 2440782.37 4.22 2.33 2440786.42 4.23 2.32 2440842.42 4.16 2.35 2440904.45 3.97 2.37 2441041.34 3.69 2.49 2441044.35 3.69 2.32 2441047.54 3.61 2.35 2441049.51 3.70 2.43 2441057.40 3.69 2.31 2441110.43 3.58 2.44: 2441138.38 3.57 2.39 2441144.39 3.54 2.50 2441173.45 3.66 2.34 2441181.50 3.64 2.28 2441200.56 3.74 2.36 2441226.34 3.73 2.30 2441255.17 3.82 2.36 sources: 1975PZ.....20...75P POLYAKOVA T.A. Perem. Zvezdy, 20, 75-92 (1975) The investigation of periodicity of light variations of mu. Cephei. 1978PZ.....20..523P POLYAKOVA T.A. Perem. Zvezdy, 20, 523-533 (1978) Photometric and polarimetric observations of stars with variable polarization. JD V B-V 2441718.24 4.17 2.51 2441720.18 4.21: 2441726.26 4.10 2.34 2441728.31 4.14: 2441761.28 4.08 2.40 2441763.30 4.04 2.42 2441787.43 4.03 2.53 2441793.36 4.07 2.48 2441807.36 4.00 2.62 2441813.39 4.03 2.40 2441828.52 3.92 2.40 2441831.37 3.95 2.36 2441852.48 3.88 2.34 2441892.40 3.79 2.50 2441930.29 3.73 2.44 2441942.42 3.76 2.57 2441983.47 3.70 2.62 2442004.35 3.67 2.54 2442055.47 3.63 2.58 2442061.30 3.65 2.58 2442089.19 3.56 2.40 2442130.55 3.70 2.61 2442139.47 3.64 2.44 2442157.36 3.59 2.50 2442164.45 3.58 2.48 2442181.41 3.54 2.16 2442212.45 3.49 2.05 2442220.49 3.46 2.46 2442231.48 3.53 2.39 2442278.44 3.65 2.42 2442300.50 3.72 2.32 2442306.39 3.69 2.49 2442315.30 3.75 2.35 2442329.48 3.77 2.34 2442343.28 3.76 2.37 2442345.34 3.79 2.34 2442373.33 3.79 2.32 2442396.28 3.78 2.31 2442450.31 3.82 2.34 2442468.39 3.81 2.30 2442473.36 3.79: 2442508.42 3.85: 2442537.39 3.97 2.32 2442568.46 3.91 2.31 2442587.47 3.94 2.31 2442590.46 3.90 2.27 2442601.49 3.84 2.27 2442612.37 3.83 2.29 2442643.28 3.69 2.29 2442644.26 3.70 2.33 2442650.23 3.70 2.31 2442655.43 3.63 2.33 2442664.39 3.67 2.30 2442670.26 3.64 2.35 2442712.45 3.58 2.32 2442745.34 3.55 2.35 2442755.27 3.51 2.38 2442761.21 3.50 2.37 2442811.17 3.53 2.36 2442819.56 3.59 2.37 2442828.22 3.58 2.39 2442845.25 3.62 2.42 2442865.56 3.56 2.39 2442869.43 3.57 2.39 2442900.52 3.53 2.41 2442915.47 3.49 2.41 2442933.50 3.46 2.43 2443002.36 3.46 2.40 2443004.41 3.54 2.40 2443018.44 3.50 2.43 2443025.41 3.59 2.41 2443027.30 3.57 2.42 2443028.46 3.58 2.43 2443053.39 3.61 2.41 2443070.31 3.58 2.46 2443086.26 3.69 2.37 2443121.26 3.75 2.37 source: 1982SoByu..53....3A ABRAHAMIAN H.V. Soobshch. Byurakan Obs., 53, 3-39 (1982) The results of UBV electrophotometric observations of red supergiants. comparison star: HD 206842, V=6.08, B-V=1.39 assumed JD V B-V 2441919.40 3.76 2.52 2441921.42 3.88 2.44 2441922.38 3.86 2.47 2441923.43 3.85 2.46 2441924.38 3.87 2.45 2441930.44 3.88 2.44 2441946.33 3.81 2.48 2441949.41 3.82 2.47 2441955.46 3.81 2.48 2441973.30 3.77 2.51 2441978.40 3.79 2.48 2441983.38 3.79 2.47 2442217.58 3.64 2.49 2442240.55 3.67 2.46 2442246.50 3.71 2.46 2442251.63 3.70 2.49 2442254.49 3.70 2.47 2442273.46 3.73 2.46 2442276.44 3.77 2.47 2442311.42 3.82 2.46 2442333.46 3.85 2.44 2442338.48 3.85 2.43 2442346.44 3.89 2.40 2442368.36 3.83 2.43 2442399.32 3.87 2.40 2442427.29 3.86 2.43 2442567.64 4.00 2.40 2442606.49 3.91 2.41 2442612.56 3.91 2.40 2442622.53 3.86 2.39 2442629.46 3.84 2.39 2442634.44 3.83 2.39 2442655.50 3.75 2.41 2442691.43 3.64 2.42 2442720.22 3.64 2.44 2442754.31 3.61 2.48 2442799.28 3.62 2.50 2442934.62 3.52 2.50 2442954.61 3.52 2.49 2442982.55 3.54 2.50 2442988.54 3.54 2.50 2442991.48 3.54 2.48 2443013.46 3.54 2.48 2443017.52 3.57 2.48 2443024.53 3.59 2.49 2443052.48 3.71 2.44 2443082.42 3.77 2.43 2443095.33 3.69 2.63 source: 1986JAVSO..15...15K KRISCIUNAS K.L. J. Am. Assoc. Variable star obs., 15, 15-21 (1986) Photometry of alpha Orionis, CE Tauri, and mu Cephei. JD V B-V 2446309.85 3.84 2.31 2446328.82 3.83 2446330.89 3.86 2.22 2446352.84 3.88 2.33 2446387.76 3.73